Snom C620 User manual

C620
SIP Wireless Conference Phone
Administrator and Provisioning Manual
Rev. 2 11/22

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C620 Administrator and Provisioning Manual
C ONTENTS
Preface ...................................................................................................... 7
Text Conventions ................................................................................................................8
Audience.............................................................................................................................8
Related Documents ............................................................................................................8
Introducing the C620................................................................................ 9
About the C620 SIP Wireless Conference Phone ............................................................10
Quick Reference Guide .................................................................................................... 11
C620 Base Station............................................................................................... 11
C620 Conference Phone .....................................................................................12
Network Requirements .....................................................................................................13
C620 Configuration Methods............................................................................................15
Customizing Soft Keys .....................................................................................................16
Factory Reset the Base Station........................................................................................18
Configuration Using the Phone Menus ................................................ 19
Viewing the Main Menu ....................................................................................................20
Using the Status menu ........................................................................................20
Viewing Line status..............................................................................................22
Using the Admin Settings Menu ....................................................................................... 23
Using the Network Setting menu .........................................................................25
Using the Security menu......................................................................................31
Using the Provisioning menu ...............................................................................31
Editing the conference phone PIN code ..............................................................34
Using the WebUI..................................................................................... 35
Using the Web User Interface (WebUI) ............................................................................36
Status Page ......................................................................................................................39
System Status......................................................................................................39
Device Status.......................................................................................................40
System Pages ..................................................................................................................41
SIP Account Management ...................................................................................41
General Account Settings..............................................................................41
Dial Plan........................................................................................................44

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C620 Administrator and Provisioning Manual
SIP Server Settings .......................................................................................45
Registration Settings .....................................................................................45
Outbound Proxy Settings ..............................................................................45
Backup Outbound Proxy Settings .................................................................46
Caller Identity Settings .................................................................................. 46
Audio Settings ...............................................................................................46
Quality of Service ..........................................................................................48
Signaling Settings .........................................................................................48
Voice Settings ...............................................................................................49
Feature Access Codes Settings ....................................................................49
Voicemail Settings.........................................................................................51
NAT Traversal................................................................................................51
Music on Hold Settings .................................................................................52
Network Conference Settings .......................................................................52
Session Timer ...............................................................................................52
Jitter Buffer....................................................................................................53
Keep Alive ..................................................................................................... 53
XSI ................................................................................................................54
Call Settings.........................................................................................................55
General Call Settings ....................................................................................55
Do Not Disturb...............................................................................................55
Call Forward..................................................................................................55
User Preferences.................................................................................................57
General User Settings...................................................................................57
Wireless Conference Phone ................................................................................ 58
Soft Keys.......................................................................................................58
Type ..............................................................................................................60
Server Application................................................................................................61
Action URI Syntax .........................................................................................61
Action URI .....................................................................................................63
XML Push Settings........................................................................................65
Network Pages .................................................................................................................66
Basic Network Settings........................................................................................67
IPv4 ...............................................................................................................67
IPv6 ...............................................................................................................68
Advanced Network Settings.................................................................................69
VLAN.............................................................................................................69
LLDP-MED ....................................................................................................70
802.1x ...........................................................................................................70
VPN............................................................................................................... 71
Contacts Pages ................................................................................................................72
Base Directory .....................................................................................................72
Create Base Directory Entry .........................................................................75
Directory Import/Export .................................................................................75
Blacklist................................................................................................................76
Create Blacklist Entry....................................................................................78
Blacklist Import/Export ..................................................................................79
LDAP ...................................................................................................................80
LDAP Settings...............................................................................................80
Broadsoft Directory and CallLogs ........................................................................ 82
Directory Type ............................................................................................... 83
CallLogs Type................................................................................................83

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C620 Administrator and Provisioning Manual
Remote XML........................................................................................................84
Remote XML Directory Format......................................................................84
Servicing Pages................................................................................................................86
Reboot .................................................................................................................86
Time and Date .....................................................................................................86
Time and Date Format ..................................................................................87
Network Time Settings ..................................................................................87
Time Zone and Daylight Savings Settings ....................................................87
Manual Time Settings....................................................................................88
Custom Language ...............................................................................................89
Firmware Upgrade ............................................................................................... 90
Auto Upgrade ................................................................................................90
Base Firmware........................................................................................90
Wireless Conf. Phone Firmware .............................................................91
Firmware Server Settings .......................................................................91
Manual Firmware Update and Upload ..........................................................92
Updating the base station .............................................................................92
Updating the conference phone ....................................................................92
Provisioning .........................................................................................................94
Provisioning Server .......................................................................................95
Plug-and-Play Settings..................................................................................95
DHCPv4 Settings ..........................................................................................96
Resynchronization.........................................................................................96
Import Configuration......................................................................................98
Export Configuration ..................................................................................... 98
Reset Configuration ...................................................................................... 99
Security..............................................................................................................100
Passwords...................................................................................................100
Web Server .................................................................................................101
Trusted Servers...........................................................................................101
Trusted IP....................................................................................................102
Certificates.........................................................................................................103
Device Certificate ........................................................................................103
Trusted Certificate .......................................................................................104
TR-069 Settings.................................................................................................106
System Logs ......................................................................................................107
Syslog Settings ...........................................................................................107
Network Trace .............................................................................................108
Download Log .............................................................................................108
Provisioning Using Configuration Files............................................. 109
The Provisioning Process............................................................................................... 110
Resynchronization: configuration file checking.................................................. 111
C620 restart....................................................................................................... 111
Configuration File Types ................................................................................................. 112
Data Files ....................................................................................................................... 113
Configuration File Tips and Security............................................................................... 114
Clearing parameters with %NULL in configuration file ...................................... 114
Guidelines for the MAC-specific configuration file ............................................. 114
Securing configuration files with AES encryption............................................... 115

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C620 Administrator and Provisioning Manual
Configuration File Parameter Guide................................................... 117
"sip_account" Module: SIP Account Settings.................................................................. 119
General configuration file settings ..................................................................... 119
MAC-specific configuration file settings .............................................................129
"hs_settings" Module: Handset Settings.........................................................................133
General configuration file settings .....................................................................134
MAC-specific configuration file settings .............................................................138
“system” Module: System settings..................................................................................139
MAC-specific configuration file settings .............................................................139
"network" Module: Network Settings...............................................................................140
General configuration file settings .....................................................................140
MAC-specific configuration file settings .............................................................142
"provisioning" Module: Provisioning Settings..................................................................145
General configuration file settings .....................................................................145
MAC-specific configuration file settings .............................................................148
"time_date" Module: Time and Date Settings .................................................................150
"log" Module: Log Settings..............................................................................................155
"remoteDir" Module: Remote Directory Settings.............................................................156
"web" Module: Web Settings ..........................................................................................161
“trusted_ip” Module: Trusted IP Settings ........................................................................162
“trusted_servers” Module: Trusted Server Settings ........................................................163
"user_pref" Module: User Preference Settings ...............................................................164
General configuration file settings .....................................................................164
MAC-specific configuration file settings .............................................................164
"call_settings" Module: Call Settings ..............................................................................165
General configuration file settings .....................................................................165
MAC-specific file settings...................................................................................165
“audio” Module: Audio Settings.......................................................................................167
"file" Module: Imported File Settings...............................................................................169
General configuration file settings .....................................................................169
MAC-specific configuration file settings .............................................................171
“xml_app” Module: XML App Settings ............................................................................172
“tr069” Module: TR-069 Settings ....................................................................................173
"tone" Module: Tone Definition Settings..........................................................................175
"profile" Module: Password Settings...............................................................................179
General configuration file settings .....................................................................180
MAC-specific configuration file settings .............................................................180
"speed_dial" Module: Speed Dial Settings .....................................................................181
Troubleshooting ................................................................................... 182
Common Troubleshooting Procedures ...........................................................................182
Appendixes........................................................................................... 183
Appendix A: Maintenance...............................................................................................183
Appendix B: GNU General Public License .....................................................................184

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C620 Administrator and Provisioning Manual

Preface 7 Back to Contents
C620 Administrator and Provisioning Manual
PREFACE
Congratulations on your purchase of this Snom product. Please thoroughly read this
manual for all the feature operations and troubleshooting information necessary to install
and operate your new Snom product. You can also visit our website at
www.snomamericas.com.
This administrator and provisioning manual contains detailed instructions for installing and
configuring your C620 SIP Wireless Conference Phone with software version 0.4.1.0 or
newer. See “Using the Status menu” on page 20 for instructions on checking the software
version on the C620. Please read this manual before installing the product.
Please print this page and record the following information regarding your product:
Model number: C620
Type: SIP Wireless Conference Phone
Serial number: _______________________________
Purchase date: _______________________________
Place of purchase: ____________________________
Both the model and serial numbers of your Snom product can be found on the bottom of
the device.
Save your sales receipt and original packaging in case it is necessary to return your
telephone for warranty service.

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C620 Administrator and Provisioning Manual
Text Conventions
Table 1 lists text formats and describes how they are used in this guide.
Audience
This guide is written for installers and system administrators. It assumes that you are
familiar with networks and VoIP, both in theory and in practice. This guide also assumes
that you have ordered your IP PBX equipment or service and selected which PBX features
you want to implement. This guide references specific IP PBX equipment or services only
for features or settings that have been designed for a specific service. Please consult your
equipment supplier or service provider for recommended switches, routers, and firewall
and NAT traversal settings, and so on.
As the C620 SIP Wireless Conference Phone becomes certified for IP PBX equipment or
services, Snom may publish interop guides for those specific services. The interop guides
will recommend second-party devices and settings, along with C620-specific configurations
for optimal performance with those services. For the latest updates, visit our website at
www.snomamericas.com.
Related Documents
The C620 Quick Installation Guide contains a quick reference guide to the C620 external
features and brief instructions on connecting the C620 to a working IP PBX system.
The C620 User manual contains a quick reference guide, full installation instructions,
instructions for making and receiving calls, and a guide to all user-configurable settings.
The documents are available from our website at www.snomamericas.com.
Table 1. Description of Text Conventions
Text Format Description
Screen Identifies text that appears on a device screen or a
WebUI page in a title, menu, or prompt.
HARD KEY or DIAL-PAD KEY Identifies a hard key, including the dial-pad keys.
Identifies a soft key.
Example of a Note.
Example of a Caution.
CallFwd
Notes provide important information
about a feature or procedure.
A caution means that loss of data or
unintended circumstances may result.

Introducing the C620 9 Back to Contents
C620 Administrator and Provisioning Manual
CHAPTER 1
INTRODUCING THE C620
This administrator and provisioning guide contains detailed instructions for configuring the
C620 SIP Wireless Conference Phone. Please read this guide before attempting to
configure the C620.
Some of the configuration tasks described in this chapter are duplicated in the Web User
Interface (WebUI) described in the next chapter, but if you need to assign static IP
addresses, they must be set at each device.
This chapter covers:
“About the C620 SIP Wireless Conference Phone” on page 10
“Quick Reference Guide” on page 11
“Network Requirements” on page 13
“C620 Configuration Methods” on page 15
“Customizing Soft Keys” on page 16.

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C620 Administrator and Provisioning Manual
About the C620 SIP Wireless Conference Phone
The Snom C620 SIP Wireless Conference Phone is a designed to work with popular SIP
telephone (IP PBX) equipment and services. Once you have ordered and configured your
SIP equipment or service, the C620 enables you to make and receive calls as you would
with any other business phone.
The C620 base station features include:
Up to 3 SIP account registrations
Up to 2 active SIP sessions
9 programmable soft key “slots”
Power over Ethernet enabled
1,000-entry base directory
The C620 conference phone features include:
Backlit Liquid Crystal Display
Speakerphone, hold and mute capability
3-way conferencing
100-entry call history shared across Received and Missed calls
200-entry local directory
You can configure the C620 using the menus on the conference phone, a browser-based
interface called the WebUI, or an automatic provisioning process (see “Provisioning Using
Configuration Files” on page 109). The WebUI enables you to configure the C620 using a
computer that is connected to the same Local Area Network. The WebUI resides on the
C620, and may get updated with firmware updates.
The C620 has three programmable soft keys in three layers. You can program these
soft keys for the Idle screen, Call Active screen, Call Held screen and Live Dial screen.
For more details, see “Customizing Soft Keys” on page 16.

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C620 Administrator and Provisioning Manual
Quick Reference Guide
The external features of the C620 base station and conference phone are described below.
C620 Base Station
1. (Power LED)
2. (VoIP LED)
3. LINK key
SIP

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C620 Administrator and Provisioning Manual
C620 Conference Phone
1. Status indicator 8. LCD display screen
2. Speaker 9. Dial pad keys
3. (HOLD) 10. Front microphone
4. (CANCEL) 11. (Menu)
5. Soft Keys 12. (OK)
6. Volume 13. Navigation Keys
7. MUTE ALL 14. TALK / OFF
0
1
6
MNO
9
WXYZ
3DEF
#
5
JKL
8
TUV
2
ABC
4
GHI
7
PQRS
a » A
3
4
6
11
2
8
5
1
13
14
10
7
9
12

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C620 Administrator and Provisioning Manual
Network Requirements
A simple C620 SIP Wireless Conference Phone installation example is shown in Figure 1.
A switched network topology is recommended for your LAN (using standard 10/100
Ethernet switches that carry traffic at a nominal rate of 100 Mbit/s).
The office LAN infrastructure should use Cat.-5/Cat.-5e cable.
The C620 base station requires a wired connection to the LAN. However, wireless
connections from your LAN to other devices (such as laptops) in your office will not impede
performance.
A Dynamic Host Configuration Protocol (DHCP) server is recommended and must be on
the same subnet as the C620 SIP Wireless Conference Phones so that IP addresses can
be auto-assigned. In most cases, your network router will have a DHCP server. By default,
the C620 has DHCP enabled for automatic IP address assignment.
If no DHCP server is present, you can assign a static IP to the C620. You can assign a static
IP address using the C620 menu.
To assign a static IP: On the handset Main menu, go to Status & Settings > Admin
settings > Network setting > IPv4 (or IPv6) > Set static IP.
If you do not have a DHCP server or do not manually assign static IPs, you will not be able
to access the WebUI.
A DNS server is recommended to resolve the path to the Internet and to a server for
firmware and configuration updates. If necessary, the system administrator can also
download upgrade files and use the WebUI to update the C620 firmware and/or
configuration settings manually.
Some DHCP servers have default settings that limit the number of network IP
addresses assigned to devices on the network. You should log in to your server
to confirm that the IP range is sufficient.

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C620 Administrator and Provisioning Manual
Figure 1. C620 Installation Example

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C620 Administrator and Provisioning Manual
C620 Configuration Methods
You can configure the C620 using one of the following methods:
From the conference phone using the menus. The conference phone menus are
best suited to configuring a few settings, perhaps after the initial setup has been
done. For administrators, the settings available on the conference phone Admin
Settings menu include network settings, account settings, and provisioning
settings. See “Using the Admin Settings Menu” on page 23. Many of the user
settings accessible on the conference phone are most useful for end users.
Through the User Settings menu, they can customize the screen appearance,
sounds, and manage calls. For more information, see the C620 User Manual.
The Web User Interface, or WebUI, which you access using your Internet browser.
See “Using the WebUI” on page 35. The browser-based interface is easy to
navigate and best suited to configuring a large number of C620 settings at once.
The WebUI gives you access to every setting required for configuring a single
device. You can enter service provider account settings on the WebUI, configure
the soft keys, and set up provisioning, which will allow you to automatically and
remotely update the C620 after initial configuration.
Provisioning using configuration files. Working with configuration files enables you
to configure the device at regular intervals. There are several methods available to
enable the C620 to locate and upload the configuration file. For example, you can
enable the C620, when it starts up or reboots, to check for the presence of a
configuration file on a provisioning server. If the configuration file is new or has
been modified in any way, the C620 automatically downloads the file and applies
the new settings. For more information, see “Provisioning Using Configuration
Files” on page 109.

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C620 Administrator and Provisioning Manual
Customizing Soft Keys
You can use the WebUI or parameters to customize the soft keys that appear on the Idle
screen, Call Active screen, Call Held screen and Live Dial screen. For more details, see
“Soft Keys” on page 58 and “"hs_settings" Module: Handset Settings” on page 133.
Table 2 shows the soft key options available for each screen. Each screen can have a
maximum of nine soft keys.
Table 2. Custom Soft Keys
Screen Available Soft Keys Soft Key Text
Idle Blank
Directory Dir
Call History Call Hist
Redial Redial
Messages Message
Do Not Disturb DND
Call Forward CallFWD
Call Forward All FwdAll
Call Forward No Answer CFNA
Call Forward Busy cfwdB
Call Return CallBack
Line (visible with more than one account assigned) Line
Settings Settings
Quick Dial Qdial
Call Active Blank
New New
End End
Hold Hold
Transfer
Transfer
Conference Conf.
Private hold Priv hold
Call Held Blank
End End
New New

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C620 Administrator and Provisioning Manual
Resume Resume
Transfer Transfer
Conference Conf.
Quick Dial Qdial
Live Dial Blank
Directory Dir
Call History Call Hist
Redial Redial
Messages Message
End End
Dial Dial
Cancel Cancel
Backspc Backspc
Quick Dial Qdial
Table 2. Custom Soft Keys
Screen Available Soft Keys Soft Key Text

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C620 Administrator and Provisioning Manual
Factory Reset the Base Station
1. Using a paperclip, or something similar, press and hold the reset button on the back of
the base station for 15 seconds.
2. Release the reset button. During the next one to two minutes, the following occurs:
The conference phone displays “Please wait”.
The VoIP LED on the base station flashes quickly, then the Power LED and the
VoIP LED flash alternatingly.
The conference phone beeps once and displays “Out of range or no power at
base”.
The status indicators on the conference phone flash red quickly.
The conference phone displays the idle screen. This indicates the factory reset has
completed.

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C620 Administrator and Provisioning Manual
CHAPTER 2
CONFIGURATION USING THE PHONE
MENUS
The C620 Main Menu has the following sub-menus:
Directory—view and dial entries in the Local directory, Base directory, Broadsoft
directory, Blacklist and Speed dial list.
Call history—view missed calls, received calls and dialed calls.
Message—access the voice messages on each account.
Call Features—set DND, call forward settings and other calling features.
Status & Settings—display the Status & Settings menu with the following items:
Status—view the C620 network status, account registration status, and
product information.
User settings—configure the language, date/time, programmable keys,
display settings, audio settings, and register/deregister conference
phones/wireless mics to the base station.
Admin settings—configure network settings (enter static IP addresses, for
example), secure browsing, provisioning settings, edit PIN code, and perform
firmware update.
This chapter contains instructions for using the Admin Settings menu and for accessing the
Status menu. See the C620 User Manual for more information about the other menus.

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C620 Administrator and Provisioning Manual
Viewing the Main Menu
To use the conference phone menu:
3. When the conference phone is idle, press .
The Main Menu appears.
4. Press or to highlight the desired sub-menu, and then press .
Press to select a menu item.
Press to cancel an operation or return to the previous screen.
Using the Status menu
Use the Status menu to verify network settings and begin troubleshooting if network
problems or account registration issues affect operation.
You can also find the software version of the C620 on the Product Info screen, available
from the Status menu.
To view the Status menu:
1. When the conference phone is idle, press .
2. On the Main Menu, press or to highlight Status & Settings, and then
press .
3. With Status highlighted, press .
The Status menu appears.
4. On the Status menu, press or to highlight the desired menu item, and then
press .
The available status menus are listed in Table 3.