AudioCodes 400HD Series Use and care manual

Administrator’s Manual
AudioCodes High Definition IP Phones Series
400HD IP Phones Series -
Teams Compatible
Version 3.4.4

Administrator's Manual Contents
Version 3.4.4 3 400HD IP Phones Series - Teams Compatible
Table of Contents
1Introduction .......................................................................................................17
2Automatic Mass Provisioning of IP Phones using DHCP..............................19
2.1 Preparing the Microsoft Skype for Business Environment for IP Phones .....21
2.1.1 Making Sure DHCP Server Options are Correctly Configured ..............................21
2.1.1.1 DHCP Option 43...................................................................................22
2.1.1.2 VLAN Discovery via DHCP Option 43 ...................................................22
2.1.1.3 DHCP Option 120.................................................................................22
2.1.1.4 DHCP Option 42...................................................................................22
2.1.1.5 DHCP Scope Option.............................................................................23
2.1.2 Making Sure the DHCP Server is Correctly Configured for Auto Provisioning.......36
2.2 Creating a Configuration File for Auto Provisioning........................................37
2.2.1 Saving a Single Phone’s Default Configuration as a .cfg File................................37
2.2.2 Configuring the Phone According to Requirements..............................................38
2.2.3 Save the Phone’s Newly Configured Settings as a .cfg File..................................38
2.2.4 Creating a Delta Configuration .cfg File................................................................38
2.2.5 Loading the Delta .cfg File to Another Phone, Signing In, Testing ........................38
2.2.5.1 Loading the Delta .cfg File to Another Phone ........................................38
2.2.5.2 Signing In to the Phone.........................................................................39
2.2.5.3 Testing the Phone ................................................................................39
2.2.5.4 Changing the Order of the Sign-In Method ............................................39
2.2.5.5 Allowing Users to Display Phone # or Ext # in Phone Screen ................39
2.2.5.6 Forcing Sign-in with PIN Code ..............................................................39
2.2.5.7 Online Sign-in through Microsoft's Cloud PBX.......................................40
2.2.5.8 Disabling AutoDiscover Web Service Protocol ......................................41
2.3 Copying the Configuration File to the Provisioning Server.............................41
2.4 Triggering Automatic Provisioning ...................................................................41
2.5 Troubleshooting Automatic Provisioning.........................................................42
2.5.1 Using the Phone Screen......................................................................................42
3Manual Configuration of a Single IP Phone ....................................................45
3.1 Configuring Network Connections....................................................................45
3.1.1 Configuring LAN Connection Type.......................................................................45
3.1.2 Configuring LAN Port / PC Port............................................................................48
3.1.3 Configuring VLAN Settings ..................................................................................49
3.2 Configuring Personal Settings ..........................................................................50
3.2.1 Configuring Language .........................................................................................50
3.3 Configuring Function and Programmable Keys...............................................51
3.3.1 Configuring a Function Key..................................................................................52
3.3.1.1 Configuring a Function Key for Speed Dialing .......................................52
3.3.1.2 445HD, 450HD, C450HD and RX50 .....................................................53
3.3.1.3 Configuring a Function Key for Making a Discreet Call ..........................53
3.3.2 Configuring Programmable Keys .........................................................................54
3.3.3 Configuring Programmable Softkeys for a Customized UI Experience..................56
3.3.4 Configuring a Programmable Softkey to Allow Paging during an Ongoing Call | Call
Hold | Call Park................................................................................................................57
3.3.5 Configuring Tones ...............................................................................................58
3.3.5.1 Configuring CPT Regional Settings.......................................................58
3.3.5.2 Uploading Ring Tones ..........................................................................60
3.3.6 Configuring Phone Screen Settings .....................................................................61
3.3.7 Configuring a Distinctive Ring Tone .....................................................................63
3.4 Configuring VoIP Settings .................................................................................64
3.4.1 Configuring TLS/SSL over SIP.............................................................................64
3.4.2 Configuring TLS/SSL over SIPE ..........................................................................65

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3.4.3 Configuring an Outbound Proxy...........................................................................66
3.4.4 Configuring IP Phone Office 365 Services via HTTP Proxy Support .....................66
3.4.5 Configuring Dialing ..............................................................................................68
3.4.5.1 Adjusting the DTMF Level.....................................................................68
3.4.5.2 Configuring Automatic Dialing...............................................................69
3.4.5.3 Configuring Pause Dialing for a Speed Dial to an Ext. behind an IVR....70
3.4.5.4 Configuring Default Audio Device .........................................................71
3.4.6 Enabling Direct Voice Dialing...............................................................................72
3.4.7 Disabling the Phone Microphone .........................................................................73
3.4.8 Configuring the TRANSFER Key to Perform Consultative Transfer ......................74
3.4.9 Enabling Semi-Consultative Transfer...................................................................74
3.4.10 Disabling the BXfer (Blind Transfer) Softkey ........................................................75
3.4.11Enabling Electronic Hook Switch .........................................................................76
3.4.12 Disabling Audial Call Waiting Indication ...............................................................77
3.4.13 Disabling Call Forward.........................................................................................78
3.4.14 Configuring Busy on Busy....................................................................................78
3.4.15 Configuring Disconnect if Handset On-Hooked after Putting Call on Hold.............79
3.4.16 Configuring Media Streaming ..............................................................................80
3.4.16.1 Configuring Quality of Service...............................................................80
3.4.16.2 Configuring Codecs ..............................................................................81
3.4.16.3 Configuring Real Time Protocol (RTP) Port Range................................83
3.4.16.4 Configuring RTCP Extended Report .....................................................84
3.4.16.5 Configuring Media Bypass ....................................................................84
3.4.17 Enabling Paging ..................................................................................................86
3.4.18 Enabling Barge-in................................................................................................88
3.4.19 Configuring the VocaNOM Service ......................................................................89
3.4.20 Configuring a Dedicated Voicemail Server...........................................................90
3.4.21 Securing Voicemail Access by PIN Code Authentication ......................................91
3.4.22 Setting up a Cloud User's Voicemail / MWI ..........................................................92
3.4.22.1 Enabling Unified Messaging..................................................................95
3.4.22.2 Troubleshooting....................................................................................97
3.5 Configuring Security ..........................................................................................98
3.5.1 Using the Encryption Tool....................................................................................98
3.5.1.1 Encrypting Configuration Files ..............................................................98
3.5.2 Encrypting Passwords in Configuration File .........................................................98
3.5.3 Managing Security Certificates ............................................................................99
3.5.3.1 Loading the Root CA Certificate to the Phone .......................................99
3.5.3.2 Loading the Client Certificate to the Phone .........................................100
3.5.3.3 Enabling Server-side Authentication (Mutual Authentication)...............100
3.5.3.4 Generating a Certificate Signing Request............................................101
3.5.4 Server Certificate Validation for Secured HTTPS Communications over SSL .....102
3.5.5 Configuring 802.1X Authentication.....................................................................103
3.5.5.1 Using the Phone Screen.....................................................................103
3.5.5.2 EAP MD5 Mode..................................................................................103
3.5.5.3 EAP TLS Mode...................................................................................103
3.5.6 Using the Configuration File...............................................................................104
3.5.6.1 EAP MD5 Mode..................................................................................104
3.5.6.2 EAP TLS Mode...................................................................................105
3.5.7 Configuring HTTPS ...........................................................................................106
3.5.8 Supported Encryption Ciphers and TLS Version ................................................106
3.5.9 Support for Enterprise HTTP/S Proxy Servers ...................................................107
3.6 Configuring Advanced Applications ...............................................................108
3.6.1 Wi-Fi Capability .................................................................................................108
3.6.2 Bluetooth...........................................................................................................108
3.6.3 Dynamic URL Provisioning ................................................................................109
3.6.4 Configuring Date and Time................................................................................112
3.6.4.1 Configuring NTP Server......................................................................115
3.6.4.2 Configuring NTP Server via DHCP......................................................116
3.6.5 Configuring Contacts (LDAP).............................................................................118

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Version 3.4.4 5 400HD IP Phones Series - Teams Compatible
3.6.6 Configuring T9...................................................................................................121
3.6.7 Configuring the Caller Name to be Displayed.....................................................121
4Configuring Microsoft Skype for Business Features...................................123
4.1 Microsoft Screen Theme..................................................................................123
4.2 Configuring Phone Status and User Status Timeouts...................................123
4.3 Park Call............................................................................................................123
4.4 Music on Hold (MoH)........................................................................................123
4.5 Configuring Timeouts for Presence Status Changes ....................................125
4.6 Group Call Pickup (GCP) .................................................................................125
4.7 Location ............................................................................................................125
4.8 Configuring Skype for Business Server for SRTP / TLS................................126
4.9 Updating Device Firmware from the Skype for Business Server..................127
4.9.1 Enabling Automatic Firmware Updates from the Server .....................................127
4.9.2 Enabling Automatic Firmware Updates from the Server using Configuration File 128
4.9.3 Manually Downloading Firmware to the Phone from the Server..........................128
4.10 Enabling Phone Lock .......................................................................................129
4.10.1 Allowing Users Other Capabilities besides Emergency Calls if Phones Lock ......129
4.10.1.1 Allowing Users to use the Phone's Handset ........................................130
4.10.1.2 Allowing Users to Make/Receive Incoming/Outgoing Calls ..................130
4.10.1.3 Allowing Users to Answer Second-Hand (SLA | Delegation) Incoming
Calls...................................................................................................131
4.11 Exchange Server Features...............................................................................132
4.11.1 Configuring Calendar Displayed in the Phone's Screen......................................132
4.11.2 Configuring Meeting Reminders Popping up in the Phone's Screen ...................133
4.11.3 Visual Voicemail................................................................................................134
4.11.4 Skype for Business 'Favorites' Contacts & Outlook Contacts..............................134
4.12 Better Together over Ethernet.........................................................................135
4.12.1 BToE Firewall Ports...........................................................................................135
4.12.2 Installing the BToE PC Application.....................................................................136
4.12.3 Distributing the BToE PC Application msi Package ............................................144
4.12.4 Making Sure BToE is Correctly Installed ............................................................145
4.12.5 Enabling BToE for Online Users in the Skype for Business Server.....................145
4.12.6 Configuring the BToE TCP Port .........................................................................146
4.12.7 Automatically Pairing the BToE PC/Laptop Application with the IP Phone ..........147
4.12.8 Manually Pairing the BToE PC/Laptop Application with the Phone .....................148
4.12.8.1 Support for Citrix XenDesktop VDI ......................................................148
4.12.8.2 Manually Generating a Pair Code .......................................................148
4.12.8.3 Connecting the IP Phone with the BToE PC/Laptop Application ..........149
4.12.9 Connecting the Skype for Business Client with the IP Phone .............................152
4.12.10 Making Sure IP Phone/ Skype for Business Client are Paired ............................153
4.12.10.1Making Sure the Skype for Business Client is Paired ..........................153
4.12.10.2Making Sure the Phone is Paired with the PC/Laptop..........................153
4.12.11 Configuring Mode of Operation for Phone-PC Pairing ........................................154
4.12.12 Pairing Across Different Subnets .......................................................................155
4.12.13 Troubleshooting.................................................................................................155
4.13 Boss Admin ......................................................................................................156
4.13.1 Viewing Admin Lines on Boss's Phone ..............................................................159
4.13.2 Viewing Boss's Line on Admin's Phone..............................................................159
4.13.3 Configuring Boss Privacy Mode .........................................................................160
4.14 Enabling the Delegated Line Feature ..............................................................161
4.14.1 Configuring Boss Admin Delegated Line............................................................161
4.14.1.1 Configuring Multiple Points of Presence (MPOPs)...............................161
4.14.1.2 Configuring Boss-Admin Sidecar Functionality ....................................162
4.15 Configuring a Distinctive Ring on the Phone of Each Boss..........................162

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4.16 Configuring Phones to Operate in an OVR Deployment................................163
4.17 Disabling Local 3-Way Conferencing Capability ............................................164
4.18 Blocking All Phone Users from Signing Out ..................................................164
4.19 Enabling HotDesking .......................................................................................164
4.20 Uploading Logs to Microsoft Server for Support Purposes..........................166
4.21 Enabling an IP Phone Voice Quality Check....................................................166
4.22 Signing in / out with the Web Interface ...........................................................167
4.23 Signing in and Authenticating with Microsoft's Cloud PBX ..........................168
4.24 Initiating a Skype for Business Server Based Phone Conference ................169
4.25 Provisioning the Server for Downloading Contacts Pictures........................169
4.25.1 Disabling Contacts Pictures ...............................................................................170
4.26 Enabling QoE Reports to be Sent to Microsoft's SQL Server .......................171
4.27 Enabling Malicious Call Tracing......................................................................172
4.28 Disabling the C450HD IP Phone Screen Saver...............................................172
4.29 Registering the Phone on Azure Cloud ..........................................................173
5Maintenance ....................................................................................................175
5.1 Upgrading Phone Firmware.............................................................................175
5.2 Enabling/Disabling Device Update ..................................................................176
5.3 Administration ..................................................................................................177
5.3.1 Managing Users ................................................................................................177
5.3.2 Managing the Web Login Sign-in Option............................................................178
5.3.3 Allowing / Disallowing Management via the Web Interface .................................178
5.3.4 Restoring Defaults.............................................................................................178
5.3.5 Restarting the Phone.........................................................................................178
5.4 Enabling Remote Management........................................................................178
5.4.1 Enabling Telnet Access .....................................................................................178
5.4.2 Enabling SSH Access........................................................................................179
6Status and Performance .................................................................................181
6.1 Viewing Network Status ...................................................................................181
6.1.1 Viewing LAN Status...........................................................................................181
6.1.2 Viewing Port Mode Status..................................................................................181
6.1.3 Viewing 802.1X Status.......................................................................................181
6.2 Viewing VoIP Status .........................................................................................182
6.2.1 Viewing Phone Status .......................................................................................182
6.2.2 Viewing Line Status...........................................................................................182
6.2.3 Viewing Call Information ....................................................................................183
6.3 Viewing Call History .........................................................................................183
6.4 Viewing Phone Model / Firmware Version ......................................................184
6.4.1 Viewing from the Phone's Screen ......................................................................184
6.4.2 Viewing Release Information .............................................................................184
7Diagnostics......................................................................................................185
7.1 Logging .............................................................................................................185
7.1.1 Analyzing and Debugging Traffic using Syslog...................................................185
7.1.2 Analyzing and Debugging Traffic using Syslog...................................................187
7.2 Enabling Recording to Debug Voice ...............................................................188
7.3 Downloading a Tombstone Dump...................................................................190
7.4 Activating Core Dump......................................................................................191
7.5 Monitoring: Traceroute ....................................................................................192

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7.6 Enabling Port Mirroring....................................................................................193
8Troubleshooting ..............................................................................................195
8.1 Unable to Sign in to Skype for Business using Username/Password ..........195
8.2 Unable to Authenticate User using PIN ..........................................................195
8.3 IP Phone Fails Registration Process...............................................................195
8.4 How to Verify CA Certificate is Trusted / Authorized by IP Phone................196
8.5 Invalid Time Server...........................................................................................196
8.6 Invalid Time Offset ...........................................................................................196
8.7 General Corrective Actions .............................................................................197
8.7.1 Restoring Phone Defaults..................................................................................197
8.7.1.1 Restoring Factory Defaults from the Phone Screen.............................197
8.7.1.2 Restoring Factory Defaults from the Web Interface .............................197
8.7.2 Loading the Configuration File Manually ............................................................198
8.7.3 Recovering Firmware ........................................................................................199
8.7.4 Restarting the Phone.........................................................................................199
8.7.4.1 Restarting the Phone from the Screen ................................................199
8.7.4.2 Restarting the Phone from the Web Interface......................................199
AInstalling the Expansion Module....................................................................201
A.1 Installation Procedure......................................................................................201
A.1.1 Step 1: Place Phone and Module on a Table .....................................................201
A.1.2 Step 2: Invert and Unscrew Three Screws .........................................................202
A.1.3 Step 3: Remove Rubber Cover and Connect .....................................................202
A.1.4 Step 4: Attach the Panel....................................................................................203
A.1.5 Step 5: Secure the Side Panel...........................................................................203
A.1.6 Step 6: Secure the Connection of the Two Units ................................................204
A.1.7 Step 7: Mount Phone on Base Stand, Expansion Module on Base Stand...........204
BAlternative Automatic Provisioning Methods...............................................205
B.1 Static DNS Record Method ..............................................................................205
B.2 AudioCodes' HTTPS Redirect Server..............................................................207
CRecovering AudioCodes' IP Phone................................................................209
C.1 Identifying that the Phone is in Recovery Mode.............................................209
C.2 Making Sure the Phone is in Recovery Mode.................................................209
C.3 Recovering the Phone......................................................................................210
C.4 Make Sure the Phone is Downloading the Image File....................................213
C.4.1 Making Sure Using Wireshark............................................................................213
C.4.2 Making Sure Using tftpd64.................................................................................214
C.4.3 Making Sure Using the Phone Screen ...............................................................215
DHuddle Room Solution (HRS).........................................................................217
EMigrating from Skype for Business to Teams Environment................................219
E.1 Signing in with Web Sign-in (Cloud) ...............................................................219
E.2 Signing Out and then Signing In Again ..........................................................221
FSwitching Devices from Teams Compatible to Teams Native Mode ..........223
F.1 Prerequisites.....................................................................................................223
F.2 Upload Software Files to the Device Manager................................................223
F.2.1 Enable MD5 File Uploading to the Device Manager ...........................................223
F.2.2 Upload Teams Compatible Firmware File ..........................................................223
F.2.3 Upload Teams Native Firmware.........................................................................225
F.2.4 Upload MD5 File................................................................................................226

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F.2.5 Verify Files Successful Upload...........................................................................226
F.3 Add Parameters to Provision in the Teams Phone Template........................226
F.4 Upgrade the Phone to Teams Compatible Transition Firmware ...................227
F.5 Generate Configuration on the Phone ............................................................227
F.6 Verify Successful Upgrade to Teams Native ..................................................228
GSpecifications..................................................................................................230
G.1 SIP Support (RFC, Headers) ............................................................................230
G.1.1 SIP Compliance Tables .....................................................................................231

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Version 3.4.4 9 400HD IP Phones Series - Teams Compatible
List of Figures
Figure 2-1: Setting up Automatic Provisioning ...................................................................................20
Figure 2-2: DHCP Server Options .....................................................................................................21
Figure 2-3: DHCP Options Assigned to IPv4 Addresses ....................................................................23
Figure 2-4: Defining User Classes.....................................................................................................23
Figure 2-5: DHCP User Classes........................................................................................................24
Figure 2-6: New Class.......................................................................................................................24
Figure 2-7: Packet Bytes Window......................................................................................................25
Figure 2-8: DHCP User Classes........................................................................................................25
Figure 2-9: Set Predefined Options ...................................................................................................26
Figure 2-10: Predefined Options and Values .....................................................................................26
Figure 2-11: Option Type – Add AudioCodes 160 Option...................................................................27
Figure 2-12: Predefined Options and Values – Add IP Phone Management Server Location .............27
Figure 2-13: 'Scope Leased' Folder - Configure Options....................................................................28
Figure 2-14: Configure Options 1 ......................................................................................................28
Figure 2-15: Configure Options 2 ......................................................................................................29
Figure 2-16: Server Options ..............................................................................................................29
Figure 2-17: Scope Options Created [Illustrative Purposes Only].......................................................30
Figure 2-18: New Policy ....................................................................................................................30
Figure 2-19: DHCP Policy Configuration Wizard – Policy Name ........................................................31
Figure 2-20: DHCP Policy Configuration Wizard - Add.......................................................................31
Figure 2-21: Add/Edit Condition.........................................................................................................32
Figure 2-22: Policy Conditions...........................................................................................................33
Figure 2-23: Policy Settings – IP Address Range for the Policy .........................................................33
Figure 2-24: Policy Settings – Available Options................................................................................34
Figure 2-25: Policy Settings – Summary............................................................................................35
Figure 2-26: DHCP GUI - Policy Name: AudioCodes IPP User Class ................................................35
Figure 2-27: Web Interface - Configuration File .................................................................................37
Figure 2-28: Web Interface – Loading a New Configuration File ........................................................38
Figure 3-1: HTTP Proxy Functioning .................................................................................................67
Figure 3-2: Exchange Admin Center - Unified Messaging ..................................................................92
Figure 3-3: Setting up a Dial Plan......................................................................................................93
Figure 3-4: New Dial Plan: URI Type = SIP URI ................................................................................93
Figure 3-5: Dial Plan: Rules and Settings ..........................................................................................94
Figure 3-6: Edit .................................................................................................................................94
Figure 3-7: Enabling UM for Users ....................................................................................................95
Figure 3-8: Enabling UM ...................................................................................................................95
Figure 3-9: Browse to the UM Dial Plan.............................................................................................96
Figure 3-10: User's SIP Address and/or Extension Number, and PIN ................................................96
Figure 3-11: Troubleshooting – Protected Voice Mail.........................................................................97
Figure 3-12: Web Interface – Certificate Signing Request................................................................101
Figure 4-1: Skype for Business Server - Edit Trunk Configuration - Global.......................................126
Figure 4-2: Microsoft Server Page from which the Firmware Version is Updated..............................127
Figure 4-3: Web Interface – Automatic Provisioning ........................................................................128
Figure 4-4: InstallShield Wizard – Preparing to Install......................................................................137
Figure 4-5: Welcome to the InstallShield Wizard..............................................................................137
Figure 4-6: License Agreement .......................................................................................................138
Figure 4-7: License Agreement .......................................................................................................138
Figure 4-8: Destination Folder .........................................................................................................139
Figure 4-9: Change Current Destination Folder ...............................................................................139
Figure 4-10: Ready to Install ...........................................................................................................140
Figure 4-11: Installing AudioCodes Better2Gether ...........................................................................141
Figure 4-12: InstallShield Wizard Completed...................................................................................141
Figure 4-13: AudioCodes Icon in Taskbar........................................................................................142

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Figure 4-14: Control Panel>Programs>AudioCodes Better2Gether .................................................142
Figure 4-15: Computer Management > Services and Applications...................................................143
Figure 4-16: Device Manager > AudioCodes B2GoE USB Driver.....................................................143
Figure 4-17: Popup Menu................................................................................................................145
Figure 4-18: About AC BToE...........................................................................................................145
Figure 4-19: TCP Port .....................................................................................................................146
Figure 4-20: AC BToE TCP Port......................................................................................................146
Figure 4-21: Popup Menu................................................................................................................149
Figure 4-22: Phone Pairing .............................................................................................................149
Figure 4-23: AC BToE Failed Indication...........................................................................................149
Figure 4-24: AC BToE is Connected Indication................................................................................150
Figure 4-25: Popup Menu: 'Disconnect' Enabled, 'Phone Pairing' Disabled......................................150
Figure 4-26: BToE Disconnected.....................................................................................................150
Figure 4-27: Popup Menu: BToE Disconnected...............................................................................150
Figure 4-28: Start > Programs > AudioCodes > BToE Controller .....................................................151
Figure 4-29: Sign-in Request Prompt ..............................................................................................152
Figure 4-30: Web Interface - Configuration File ...............................................................................155
Figure 4-31: Skype for Business Client – Call Forwarding Settings ..................................................156
Figure 4-32: Skype for Business Client - Edit my delegate members ...............................................157
Figure 4-33: Skype for Business Client – Call Forwarding – Add Delegates.....................................157
Figure 4-34: Skype for Business Client – Call Forwarding – Added Delegate - Receive Calls ..........158
Figure 4-35: Skype for Business Client – Call Forwarding – Simultaneously ring - My Delegates .....158
Figure 4-36: Sign-in – Content Blocked Page ..................................................................................167
Figure 4-37: Sign-in – Windows Security Prompt.............................................................................167
Figure 4-38: Windows Security Prompt............................................................................................168
Figure 4-39: Sign-in with PIN Code .................................................................................................168
Figure 4-40: Sign-in with Username & Password.............................................................................168
Figure 5-1: Manual Firmware Upgrade ............................................................................................175
Figure 6-1: Web Interface - LAN Information ...................................................................................181
Figure 6-2: Web Interface - Port Mode Status..................................................................................181
Figure 6-3: Web Interface - 802.1X Status.......................................................................................181
Figure 6-4: Web Interface - Phone Status........................................................................................182
Figure 6-5: Web Interface - Line Status ...........................................................................................182
Figure 6-6: Web Interface - Call Information ....................................................................................183
Figure 6-7: Web Interface - Call History...........................................................................................183
Figure 6-8: Web Interface - System Information - Release Information ............................................184
Figure 7-1: Web Interface - Crash Dump .........................................................................................190
Figure 7-2: Web Interface - Monitoring - Traceroute ........................................................................192
Figure 8-1: Web Interface - Restore Defaults...................................................................................197
Figure 8-2: Confirm Restore to Factory Defaults..............................................................................198
Figure 8-3: Web Interface - Configuration File .................................................................................198
Figure 8-4: Web Interface - Load New Configuration File.................................................................198
Figure 8-5: Web Interface - Restart System.....................................................................................200
Figure 8-6: Confirmation Prompt .....................................................................................................200
Figure A-7: HTTPS Redirect Server Directing Phones to Provisioning Server..................................207
Figure B-1: Identifying Recovery Mode............................................................................................209
Figure B-2: Verifying Recovery Mode in Wireshark..........................................................................209
Figure B-3: Source Ethernet MAC Address in Wireshark Identical to Phone Base's .........................210
Figure B-4: Recovering the Phone - Configure the PC NIC to which the Phone is Connected ..........211
Figure B-5: Make Sure with Wireshark that the Phone is Downloading Phone .img File ...................213
Figure B-6: Verifying .img File Download with Wireshark – Filtering by TFTP...................................214
Figure B-7: Verifying .img File Download using tftpd64....................................................................214
Figure B-8: Verifying .img File Download using tftpd64....................................................................215
Figure B-9: Verifying .img File Download from the Phone Screen ....................................................215
Figure C-10: System Information page ............................................................................................217

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Figure C-11: Release Information page...........................................................................................217
Figure C-12: Personal Settings (Left HRS | Right 450HD and C450HD) ..........................................217
Figure C-13: UI Theme ...................................................................................................................218

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List of Tables
Table 2-1: DHCP Option 43 Configuration Reference........................................................................22
Table 2-2: DHCP Option 43, Sub-Option 010, Configuration Reference.............................................22
Table 2-3: DHCP Option 120 Configuration Reference......................................................................22
Table 2-4: DHCP Option 120 Configuration Reference......................................................................22
Table 2-5: DHCP User Class Entry for Each AudioCodes Phone Model Deployed.............................25
Table 2-6: Forcing Sign-In with PIN Code..........................................................................................39
Table 2-7: Online Sign-In ..................................................................................................................41
Table 2-8: AutoDiscover Web Service Protocol .................................................................................41
Table 2-9: Troubleshooting Deployment Problems ............................................................................42
Table 3-1: Network Settings – Static IP .............................................................................................46
Table 3-2: Network Settings - Automatic IP (DHCP) ..........................................................................46
Table 3-3: Port Settings ....................................................................................................................48
Table 3-4: VLAN Parameters Description ..........................................................................................49
Table 3-5: Language Display Parameters..........................................................................................50
Table 3-6: Function / Programmable Keys Parameters......................................................................51
Table 3-7: Speed Dial Parameter ......................................................................................................52
Table 3-8: Discreet Call Parameters..................................................................................................54
Table 3-9: Programmable Key Parameters in the Configuration File ..................................................54
Table 3-10: Configuring a PSK for Paging during an Ongoing Call | Call Hold | Call Park...................57
Table 3-11: Regional Parameters......................................................................................................58
Table 3-12: Ring Tone File URI in the Configuration File ...................................................................60
Table 3-13: Ring Tones Parameter in the Configuration File..............................................................60
Table 3-14: Screen Contrast Parameters [445HD, 450HD, C450HD and RX50] ................................61
Table 3-15: Distinctive Ring Tone Parameters...................................................................................63
Table 3-16: TLS/SSL over SIP Parameters .......................................................................................64
Table 3-17: TLS/SSL over SIPE Parameters.....................................................................................65
Table 3-18: Proxy and Registrar Parameters.....................................................................................66
Table 3-19: HTTP Proxy - Parameter ................................................................................................67
Table 3-20: Automatic Dialing Parameters.........................................................................................68
Table 3-21: Automatic Dialing Parameters.........................................................................................69
Table 3-22: Pause Dialing .................................................................................................................70
Table 3-23: Default Audio Device Parameter.....................................................................................71
Table 3-24: Enabling Voice Dialing....................................................................................................72
Table 3-25: Disable Microphone Parameter.......................................................................................73
Table 3-26: Changing TRANSFER Key Functionality ........................................................................74
Table 3-27: Semi-Consultative Transfer Parameter ...........................................................................74
Table 3-28: Blind Transfer Softkey Parameter ...................................................................................75
Table 3-29: EHS Parameter ..............................................................................................................76
Table 3-30: Call Waiting Audial Indication Parameter ........................................................................77
Table 3-31: Call Forward Parameter..................................................................................................78
Table 3-32: Call Forward Parameter..................................................................................................78
Table 3-33: Disconnect if Handset On-Hooked after Call Put on Hold................................................79
Table 3-34: QoS Parameters.............................................................................................................80
Table 3-35: Codec Parameters .........................................................................................................81
Table 3-36: Media Streaming - RTP Port Range................................................................................83
Table 3-37: RTCP_XR Parameter .....................................................................................................84
Table 3-38: Paging Parameters.........................................................................................................86
Table 3-39: Paging – Allow Barge In .................................................................................................88
Table 3-40: Voice-Dialing Parameter Descriptions.............................................................................89
Table 3-41: Dedicated Voicemail Server - Parameters.......................................................................90
Table 3-42: Securing Voicemail Access by PIN Code Authentication Parameter................................91
Table 3-43: Root CA Certificate Parameters......................................................................................99
Table 3-44: Client Certificate Parameters ........................................................................................100

Administrator's Manual Contents
Version 3.4.4 13 400HD IP Phones Series - Teams Compatible
Table 3-45: Server-side Authentication............................................................................................100
Table 3-46: Server Certificate Validation for Secured HTTPS Communications over SSL ................102
Table 3-47: EAP MD5 Parameters ..................................................................................................104
Table 3-48: EAP TLS Parameters ...................................................................................................105
Table 3-49: HTTPS Parameter........................................................................................................106
Table 3-50: Configuring HTTP/S Server ..........................................................................................107
Table 3-51: Configuring Automatic Provisioning Performed by DHCP..............................................109
Table 3-52: Daylight Saving Time Parameters.................................................................................112
Table 3-53: NTP Server Parameters ...............................................................................................115
Table 3-54: NTP Server and GMT Parameters................................................................................116
Table 3-55: Time Zones ..................................................................................................................117
Table 3-56: LDAP Parameters ........................................................................................................118
Table 3-57: T9 Parameter ...............................................................................................................121
Table 3-58: Caller Name to be Displayed ........................................................................................121
Table 4-1: Presence Status Timeout Parameters ............................................................................125
Table 4-2: Automatic Firmware Update from Skype for Business Server - Configuration File ...........128
Table 4-3: PIN Lock Parameter .......................................................................................................129
Table 4-4: Inband Provisioning Parameter 'DisableHandsetOnLockedMachine' ...............................130
Table 4-5: Local Phone Parameter 'AllowCallsInLockState' .............................................................130
Table 4-6: Local Phone Parameter 'AnswerDelegateIncomingCalls' ................................................131
Table 4-7: Microsoft's Exchange Calendar ......................................................................................132
Table 4-8: Calendar Meeting Reminders .........................................................................................133
Table 4-9: Maximum Number of Outlook Contacts to Display in the Phone's Screen........................134
Table 4-10: Pairing Mode Parameter...............................................................................................154
Table 4-11: Boss Privacy Mode Parameter......................................................................................160
Table 4-12: Distinctive Ring Tone Parameter ..................................................................................163
Table 4-13: Removing Local 3-Way Conferencing Capability from Users - Parameter......................164
Table 4-14: Blocking All Users from Signing out - Parameter ...........................................................164
Table 4-15: Inband Provisioning Parameters for Downloading Contacts Pictures to Phones ............169
Table 4-16: Local Phone Parameters for Downloading Contact Pictures..........................................170
Table 4-17: Enabling QoE Reports using the Configuration File.......................................................171
Table 4-18: Disabling the C450HD IP Phone Screen Saver.............................................................173
Table 4-19: Enabling the Client ID using the Configuration File........................................................173
Table 5-1: Automatically Checking for Updates Using the Configuration File....................................176
Table 5-2: Administrator account - Username and Password...........................................................177
Table 5-3: User account - Username and Password........................................................................177
Table 5-4: Telnet Parameters..........................................................................................................179
Table 7-1: Syslog Parameters.........................................................................................................185
Table 7-2: Packet Recording Parameters ........................................................................................188
Table 7-3: Crash Dump Parameters................................................................................................190
Table 7-4: Core Dump Parameter ...................................................................................................191
Table 7-5: Port Mirroring Parameters ..............................................................................................193
Table A-1: Static DNS Record Parameters......................................................................................205
Table B-1: Configuring tftpd64 Settings ...........................................................................................211
Table D-2: Supported IETF RFCs ...................................................................................................230
Table D-3: Supported SIP Methods .................................................................................................232
Table D-4: Supported SIP Headers .................................................................................................233

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Administrator's Manual Notices
Version 3.4.4 15 400HD IP Phones Series - Teams Compatible
Notice
Information contained in this document is believed to be accurate and reliable at the time of
printing. However, due to ongoing product improvements and revisions, AudioCodes cannot
guarantee accuracy of printed material after the Date Published nor can it accept responsibility
for errors or omissions. Updates to this document can be downloaded from
https://www.audiocodes.com/library/technical-documents.
This document is subject to change without notice.
Date Published: Jan-10-2021
WEEE EU Directive
Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed of
with unsorted waste. Please contact your local recycling authority for disposal of this product.
Customer Support
Customer technical support and services are provided by AudioCodes or by an authorized
AudioCodes Service Partner. For more information on how to buy technical support for
AudioCodes products and for contact information, please visit our website at
https://www.audiocodes.com/services-support/maintenance-and-support.
Stay in the Loop with AudioCodes
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.
Documentation Feedback
AudioCodes continually strives to produce high quality documentation. If you have any
comments (suggestions or errors) regarding this document, please fill out the Documentation
Feedback form on our Web site at https://online.audiocodes.com/documentation-feedback.

400HD IP Phones Series - Teams Compatible
Administrator's Manual 16 Document #: LTRT-09960
Related Documentation
Document Name
445HD IP Phone Quick Guide – Teams Compatible
445HD IP Phone User’s Manual - Teams Compatible
450HD IP Phone Quick Guide - Teams Compatible
450HD IP Phone User’s Manual - Teams Compatible
C450HD IP Phone Quick Guide - Teams Compatible
C450HD IP Phone User’s Manual - Teams Compatible
HRS Conference Device Quick Guide - User’s Manual - Teams Compatible
HRS Conference Device User’s Manual - Teams Compatible
RX50 Conference Phone Quick Guide - Teams Compatible
RX50 Conference Phone User’s Manual - Teams Compatible
Device Manager Administrator’s Manual
One Voice Operations Center (OVOC) IOM Manual
OVOC User’s Manual

Administrator's Manual 1. Introduction
Version 3.4.4 17 400HD IP Phones Series - Teams Compatible
1 Introduction
This Administrator's Manual is intended for administrators responsible for provisioning
AudioCodes' 400HD Series of IP Phones deployed with Microsoft Skype for Business in an
enterprise network.
Note: AudioCodes Skype for Business devices support Microsoft ‘Teams Compatible’.
The document describes the new features and known and resolved restraints for
AudioCodes' 400HD Series of IP Phones, including:
445HD, 450HD, C450HD IP Phones
RX50 Conference Phone
Huddle Room Solution (HRS)
AudioCodes' 445HD-R IP Phone without the Expansion Module (sidecar) and BLFs + 12
SDs (phone models UC445HDG-R and UC445HDEPSG-R) are identical to the 445HD IP
phone but do not feature the Expansion Module (sidecar) nor the BLFs + 12 Speed Dials.
AudioCodes IP phones are based on AudioCodes' proprietary High Definition (HD) voice
technology, providing clarity and a rich audio experience in Voice-over-IP (VoIP) calls.
The phones are fully-featured telephones that provide voice communication over an IP
network, allowing you to place and receive phone calls, put calls on hold, transfer calls, etc.
The phones offer different automatic provisioning options.
This manual shows how to automatically provision a mass deployment of AudioCodes IP
phones using DHCP.

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Administrator's Manual 2. Automatic Mass Provisioning of IP Phones using DHCP
Version 3.4.4 19 400HD IP Phones Series - Teams Compatible
2 Automatic Mass Provisioning of IP
Phones using DHCP
This section shows how to automatically provision a mass deployment of AudioCodes IP
phones in a Microsoft Skype for Business environment.
Note: Instead of using DHCP as the automatic provisioning method,
you can
alternatively use Static DNS Record or SIP SUBSCRIBE and NOTIFY messages.
As DHCP clients, AudioCodes IP phones can be automatically provisioned with the following
files:
Configuration file (.cfg)
Firmware file (.img)
These files can be placed on any of these three provisioning server types:
HTTP/S server
TFTP server
FTP server
Figure 2-1 summarizes the steps required for setting up mass provisioning of IP phones in a
Microsoft environment.
These steps are described in detail in the following sections.
Note: Automatic mass provisioning of IP phones using the DHCP provisioning method
can alternatively be performed from the phones’ management server. For detailed
information, see the Device Manager Administrator's Manual.

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Figure 2-1: Setting up Automatic Provisioning
Prepare the Microsoft Skype for Business environment for
IP phones, e.g., configure the DHCP server with DHCP
Option 160 to point to the provisioning server’s URL
Without signing in, save a single phone’s default
configuration as a .cfg file, using the Web interface
1
2
3
Configure this single phone to perform according to your
specific performance requirements in the enterprise
4
Save the phone’s newly configured settings as a .cfg file
5
Create a configuration .cfg file containing only the delta
between the default .cfg and the newly configured
enterprise-specific .cfg file
6
7
Place the delta .cfg file on the provisioning server
Load this delta .cfg file to another phone. Sign in.
Test performance to see if it matches requirements.
Connect all IP phones to the network and power up.
Phones are automatically provisioned
8