AudioCodes 420HD Use and care manual

Administrator's Manual
IP Phone Manager Pro
Version 7.4
400HD IP Phones Series

Administrator's Manual Contents
Version 7.4 3 One Voice Operations Center
Table of Contents
1Introduction .......................................................................................................11
1.1 About this Manual ..................................................................................................11
1.2 Zero Touch Provisioning ........................................................................................11
1.2.1 Zero Touch Provisioning Process - Skype for Business Phone..............................12
1.2.2 Zero Touch Provisioning – non Skype for Business Phone ....................................12
2Starting up and Logging in...............................................................................13
3Implementing Zero Touch Provisioning..........................................................15
3.1 Before Implementing Zero Touch...........................................................................15
3.2 Preparing a Template per Tenant/Model ...............................................................16
3.3 Uploading .img Firmware File to the Server...........................................................17
3.4 Configuring DHCP Option 160 with a Tenant URL ................................................18
3.4.1 Configuring DHCP Option 160 with System URL....................................................21
3.4.1.1 Editing the DHCP Option 160 cfg File......................................................22
3.4.1.2 Editing the SBC HTTP Proxy ...................................................................24
4Adding Users & Devices in Non-Skype for Business Environments............25
4.1 Exporting 'System User' to zip File.........................................................................25
4.2 Adding Users and Devices Information to the csv File........................................... 26
4.3 Importing the csv File .............................................................................................26
5Troubleshooting ................................................................................................27
5.1 Displaying Last n Activities Performed in the Web Interface.................................. 27
5.2 Displaying Archived Activates Performed in the Web Interface .............................28
5.3 Displaying Last n Activates Performed in IP Phone Manager Pro .........................29
5.4 Displaying Archived Activities Performed in IP Phone Manager Pro .....................30
AManaging IP Phones Behind a NAT using SBC HTTP Proxy ........................31
BMonitoring and Maintaining the Phone Network ............................................33
B.1 Monitoring the Network from the Dashboard .........................................................33
B.2 Viewing Network Topology.....................................................................................35
B.3 Checking Devices Status .......................................................................................36
B.4 Monitoring Alarms ..................................................................................................39
B.4.1 Registration Failure Alarm .......................................................................................40
B.4.2 Survivable Mode Start Alarm...................................................................................40
B.4.3 Lync Login Failure Alarm.........................................................................................41
B.4.4 Endpoint License Alarm...........................................................................................42
B.4.5 IP Phone Speaker Firmware Download Failure ......................................................43
B.4.6 IP Phone Speaker Firmware Upgrade Failure ........................................................44
B.4.7 IP Phone Conference Speaker Connection Failure ................................................45
B.4.8 IP Phone General Local Event ................................................................................45
B.4.9 IP Phone Web Successive Login Failure ................................................................46
B.5 Searching for Alarms..............................................................................................46
B.6 Performing Actions on Alarms................................................................................46
B.7 Maintaining Users ..................................................................................................47
B.7.1 Searching for Users/Devices ...................................................................................47
B.7.2 Adding a User ..........................................................................................................47
B.7.3 Adding a Phone .......................................................................................................48
B.7.4 Editing a User ..........................................................................................................48

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B.7.5 Viewing Device Status.............................................................................................49
B.7.6 Deleting a User ........................................................................................................49
B.8 Managing Multiple Users........................................................................................50
B.9 Maintaining Multiple Devices..................................................................................53
B.10 Managing Configuration Files ................................................................................55
B.11 Managing Firmware Files.......................................................................................56
CViewing Your License .......................................................................................59
C.1Licensing Endpoints ...............................................................................................60
DApproving Users ...............................................................................................61
D.1 Skype for Business Environment ...........................................................................61
D.2 Non-Skype for Business Environment ...................................................................63
EManaging Templates.........................................................................................65
E.1 Selecting a Template .............................................................................................65
E.2 Editing a Configuration Template...........................................................................66
E.3 About the Template File .........................................................................................67
E.3.1 Restoring a Template to the Default........................................................................67
E.3.2 Downloading a Template.........................................................................................67
E.3.3 Uploading an Edited Template ................................................................................67
E.3.4 Generating an Edited Template...............................................................................68
E.3.5 Defining Template Placeholders..............................................................................68
E.3.5.1 Viewing Default Placeholders Values ......................................................70
E.3.5.2 Template Placeholders.............................................................................73
E.3.5.2.1Editing Template Placeholders ............................................................. 73
E.3.5.2.2Adding a New Template Placeholder ................................................... 74
E.3.5.3 Tenant Placeholders ................................................................................75
E.3.5.3.1Editing Tenant Placeholders................................................................. 75
E.3.5.3.2Adding a New Tenant Placeholder ....................................................... 76
E.3.5.4 Devices Placeholders...............................................................................76
E.3.5.4.1Changing a Device Placeholder Value ................................................. 76
FConfiguring the LDAP Directory ......................................................................79
GConfiguring Phones to Operate in an OVR Deployment................................81
HSigning in to a Phone into which Another User is Signed ............................83

Administrator's Manual Contents
Version 7.4 5 One Voice Operations Center
List of Figures
Figure 1-1: Zero Touch Provisioning - Skype for Business Phone ........................................................12
Figure 1-2: Zero Touch Provisioning – non Skype for Business Phone ................................................12
Figure 2-1: Logging in to the IP Phone Manager Pro via the OC...........................................................13
Figure 2-2: Login ....................................................................................................................................13
Figure 2-3: Monitor Dashboard ..............................................................................................................14
Figure 3-1: IP Phones Configuration Templates page: Add New Template button ...............................16
Figure 3-2: Add New Template ..............................................................................................................16
Figure 3-3: Default Template Indication .................................................................................................17
Figure 3-4: Phone Firmware Files ..........................................................................................................17
Figure 3-5: Tenant URLs........................................................................................................................18
Figure 3-6: Verifying the Phone's Configuration File..............................................................................20
Figure 3-7: cfg File Located on the Server.............................................................................................21
Figure 3-8: DHCP Option Configuration.................................................................................................22
Figure 3-9: Edit DHCP Option ................................................................................................................22
Figure 3-10: Proxy DHCP Options Configuration...................................................................................24
Figure 4-1: Export Users and Devices Information ................................................................................25
Figure 4-2: csv File in Excel ...................................................................................................................25
Figure 4-3: Import Users & Devices Information ....................................................................................26
Figure 5-1: System Logs ........................................................................................................................27
Figure 5-2: Web Admin...........................................................................................................................27
Figure 5-3: Last Activities Logged in the Web Interface.........................................................................28
Figure 5-4: Archive Files.........................................................................................................................28
Figure 5-5: Logged Activities Performed in IP Phone Manager Pro ......................................................29
Figure 5-6: Logged Last Activities Performed in IP Phone Manager Pro ..............................................30
Figure 5-7: Logged Archived Activities Performed in IP Phone Manager Pro .......................................30
Figure B-1: Dashboard ...........................................................................................................................33
Figure B-2: Dashboard - Skype for Business IP Phone Offline..............................................................33
Figure B-3: Network Topology Page ......................................................................................................35
Figure B-4: Network Topology Page ......................................................................................................35
Figure B-5: Devices Status.....................................................................................................................36
Figure B-6: Devices Status Filter............................................................................................................36
Figure B-7: Actions Menu - Single User .................................................................................................37
Figure B-8: Actions Menu - Selected Rows............................................................................................38
Figure B-9: Alarms..................................................................................................................................39
Figure B-10: Searching for a User/Device..............................................................................................47
Figure B-11: New User ...........................................................................................................................47
Figure B-12: Add New Device to User ...................................................................................................48
Figure B-13: Manage Multiple Users......................................................................................................50
Figure B-14: Manage Multiple Devices ..................................................................................................53
Figure B-15: Manage Configuration Files...............................................................................................55
Figure B-16: Phone Firmware Files........................................................................................................56
Figure B-17: .img Firmware File Upload.................................................................................................56
Figure C-1: License Properties...............................................................................................................59
Figure C-2: 100% of Endpoints License Capacity Reached ..................................................................60
Figure C-3: One Voice Operations Center: Endpoints Management.....................................................60
Figure D-1: Devices Status.....................................................................................................................61
Figure D-2: Devices Status – Selected Rows Actions - Approve Selected............................................62
Figure D-3: Approve Device ...................................................................................................................62
Figure E-1: IP Phones Configuration Templates....................................................................................65
Figure E-2: IP Phone Configuration Template .......................................................................................66
Figure E-3: Edit Configuration Template ................................................................................................67
Figure E-4: Generate Configuration .......................................................................................................68
Figure E-5: Manage Multiple Users – Generate Configuration ..............................................................68
Figure E-6: IP Phone Configuration Template .......................................................................................69
Figure E-7: Templates Placeholders ......................................................................................................69
Figure E-8: Default Placeholders Values ...............................................................................................70
Figure E-9: System Settings...................................................................................................................70

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Figure E-10: Template Placeholders......................................................................................................73
Figure E-11: Edit Template Placeholder ................................................................................................73
Figure E-12: Add New Template Placeholder........................................................................................74
Figure E-13: Tenant Configuration – Tenant Placeholders....................................................................75
Figure E-14: Edit Placeholder ................................................................................................................75
Figure E-15: Add New Placeholder ........................................................................................................76
Figure E-16: Manage Devices Placeholders..........................................................................................76
Figure E-17: Change IP Phone Device Placeholder ..............................................................................77
Figure F-1: LDAP Configuration .............................................................................................................79
Figure G-1: Edit DHCP Option ...............................................................................................................81
List of Tables
Table 3-1: Preparing the Network for Zero Touch..................................................................................15
Table 3-2: DHCP Option.........................................................................................................................23
Table 4-1: csv File Information ...............................................................................................................26
Table B-1: Dashboard – Status Thumbnails ..........................................................................................34
Table B-2: Actions Menu ........................................................................................................................37
Table B-3: Alarms...................................................................................................................................39
Table B-4: IP Phone Registration Failure Alarm ....................................................................................40
Table B-5: IP Phone Survivable Mode Start Alarm ................................................................................40
Table B-6: IP Phone Lync Login Failure Alarm ......................................................................................41
Table B-7: IP Phone Endpoint License Alarm........................................................................................42
Table B-8: IP Phone Speaker Firmware Download Failure Alarm.........................................................43
Table B-9: IP Phone Speaker Firmware Upgrade Failure......................................................................44
Table B-10: Conference IP Phone has no Connection to Speaker........................................................45
Table B-11: IP Phone General Local Event ...........................................................................................45
Table B-12: IP Phone Web Successive Login Failure ...........................................................................46
Table B-13: Managing Multiple Users - Actions .....................................................................................51
Table B-14: Managing Multiple Devices - Actions..................................................................................54
Table C-1: License Properties................................................................................................................59
Table E-1: System Settings ....................................................................................................................71
Table F-1: LDAP Configuration ..............................................................................................................80

Administrator's Manual Notices
Version 7.4 7 One Voice Operations Center
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. In cases where there are discrepancies between this
document and the Release Notes, the information in the Release Notes supersedes that in
this document. Updates to this document and other documents as well as software files can
be downloaded by registered customers at http://www.audiocodes.com/downloads.
This document is subject to change without notice.
Date Published: Sep-28-2017
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 Web site at
www.audiocodes.com/support.
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 http://www.audiocodes.com/downloads.

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Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.
Related Documentation
Manual Name
420HD IP Phone User's Manual
430HD and 440HD IP Phone User's Manual
405HD IP Phone User's Manual
400HD Series IP Phones Administrator's Manual
400HD Series IP Phone with Microsoft Skype for Business Administrator's Guide
420HD IP Phone Quick Guide
430HD IP Phone Quick Guide
440HD IP Phone Quick Guide
405 IP Phone Quick Guide
One Voice Operations Center IOM Manual
One Voice Operations Center User's Manual
One Voice Resiliency Configuration Note

Administrator's Manual Notices
Version 7.4 9 One Voice Operations Center
Document Revision Record
LTRT Description
91080 Initial document release for Version 7.0 beta.
91081 7.0 GA. DHCP Option 160 changed. 'System'
user added. New Device Status page features.
Added img file management at device and tenant levels. Improved Template Placeholders.
Installation procedure extended. New appendices. Enhanced alarm tables. New actions on
multiple phones.
91082 Added support for the EMS to manage IP phones residing behind a NAT, though full
management functionality support is still pending.
91083 HTTPS support when sending REST requests to phones. Option to use FQDN instead of IP
(phones report to FQDN). Option to edit the initial DHCP Options 160 cfg file. Support for
SBC HTTP Proxy. Show registered phones in the Users List. Open phone Web interface
with HTTPS rather than HTTP. OVR. 405 model.
91084 7.2 GA. Zero Touch, administrator security level, tenant-specific administrator security level,
viewing administrator security level per tenant, new GUI look & feel (new screenshots):
Dashboard (new pie charts) and other pages.
91085 7.2.2000. REST requests from phones to EMS over HTTPS; from EMS server to ph
ones are
over HTTP. 3 new alarms. Telnet debug commands. Time Based License.
91087 7.2.3000. 450HD phone model. Full search. HTTP redirected to HTTPS.
91088 Updated EMS Platform Specifications
91089 Added new alarms for the Jabra speaker.
91090 Adjusted 'Required Ports for IP Phone Management'
91091 Access from OC. New look|feel. New name. New features.

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Administrator's Manual 1. Introduction
Version 7.4 11 One Voice Operations Center
1 Introduction
AudioCodes' IP Phone Manager Pro features a user interface that enables enterprise
network administrators to effortlessly and effectively provision and maintain up to 30000
400HD Series IP phones in globally distributed corporations.
The IP Phone Manager Pro client, which network administrators can use to connect to the
server, can be any standard web browser supporting HTML5:
Internet Explorer version 11 and later, Chrome or Firefox.
REST (Representational State Transfer) based architecture enables statuses, commands
and alarms to be communicated between the IP phones and the server. The IP phones
send their status to the server every hour for display in the user interface.
Accessed from AudioCodes' One Voice Operations Center (referred to as OC for short in
this document), the IP Phone Manager Pro enables network administrators to effortlessly
load configuration files and firmware files on up to 30000 IP phones.
Other actions administrators can perform on multiple phones are to upload a csv file with
devices' MAC addresses and SIP credentials (supported in all environments except Skype
for Business), approve devices at the press of a button (supported in Skype for Business
environments only), send messages to phones' screens, reset phones, and move phones
between tenants.
A configuration file template feature lets network administrators customize configuration
files per phone model, tenant, and device.
Integrated into the OC, the IP Phone Manager Pro server provides added value to
AudioCodes 400HD Series IP phones.
1.1 About this Manual
This Administrator's Manual shows network administrators how to enable automatic
provisioning (Zero Touch provisioning) of AudioCodes' IP phones in an enterprise network
from a single central point, using AudioCodes' IP Phone Manager Pro.
1.2 Zero Touch Provisioning
AudioCodes' IP phones can be automatically provisioned when they are plugged in to the
enterprise's network if Zero Touch provisioning has been implemented.
Note: Applies to all phones irrespective of Skype for Business/non-Skype for Business.
To implement Zero Touch provisioning:
1. Build your network topology of tenants and sites using the One Voice Operations
Center (see the One Voice Operations Center User's Manual for more information).
2. Start up and log into the IP Phone Manager Pro (see Section 2).
3. Choose the Zero Touch provisioning method (see Section 3). Either:
•Configure the DHCP server to provision the phone with an IP address that is in
the tenant/site range. Configure the phone to receive the IP address or subnet
mask of the tenant/site (see Section 3.4)
•Use DHCP Option 160 (see Section 3.4)
4. Choose the default template for each tenant and model (see Section 3.2).
Note: Phones that reside behind a NAT and whose IP addresses are internal can be
managed by the OC via SBC HTTP proxy. For more information, see Appendix A.

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1.2.1 Zero Touch Provisioning Process - Skype for Business Phone
Figure 1-1 below illustrates the 1-9 step provisioning process for AudioCodes' IP phones
for Skype for Business when the Zero Touch feature is implemented.
Figure 1-1: Zero Touch Provisioning - Skype for Business Phone
*If the network administrator does not define a tenant in the URL in DHCP Option 160,
the phone is allocated a tenant/site according to best match, that is, according to
either tenant Subnet Mask or site Subnet Mask configured in the OC. See the One
Voice Operations Center User's Manual for more information.
1.2.2 Zero Touch Provisioning – non Skype for Business Phone
Figure 1-2 below illustrates the 1-9 step provisioning process for AudioCodes' non Skype
for Business phones when the Zero Touch feature is implemented.
Figure 1-2: Zero Touch Provisioning – non Skype for Business Phone

Administrator's Manual 2. Starting up and Logging in
Version 7.4 13 One Voice Operations Center
2 Starting up and Logging in
This section shows how to start the IP Phone Manager Pro and log in. Before logging in,
you need to run the OC.
Note:
•To access the IP Phone Manager Pro without running the OC, point your web
browser to https://<OVOC_IP_Address>/ipp and then in the login screen that
opens, log in. If the browser is pointed to HTTP, it will be redirected to HTTPS.
•IP Phone Manager Pro is a secured web client that runs on any standard web
browser supporting HTML5: Internet Explorer v11 and later, Chrome or Firefox.
For information on installing and operating the OC, see the OC Server IOM Manual and the
OC User's Manual.
To log in to the IP Phone Manager Pro via the OC:
1. In the OC's Network page, click the Endpoints tab and from the dropdown select
Configuration.
Figure 2-1: Logging in to the IP Phone Manager Pro via the OC
The Login to IP Phone Manager Pro screen opens:
Figure 2-2: Login

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Note: The 'Username' and 'Password' used to log in to the IP Phone Manager Pro are
the same as those used to log in to the OC.
2. Enter your Username and Password (default = acladmin and pass_1234) and click
Sign In;the application is launched and the Monitor Dashboard is displayed.
Figure 2-3: Monitor Dashboard
Note:
•See Appendix Bfor more information about monitoring phones.
•The following sections show how to provision phones using Zero Touch.

Administrator's Manual 3. Implementing Zero Touch Provisioning
Version 7.4 15 One Voice Operations Center
3 Implementing Zero Touch Provisioning
Zero Touch provisioning enables phones to be automatically provisioned when plugged in
to the enterprise network. Zero Touch determines which tenant the phone will be assigned
to. Either of the following two methods can be used to implement Zero Touch:

Configure the DHCP server to provision the phone with an IP address that is in the
tenant/site range. Configure the phone to receive the IP address or subnet mask of
the tenant/site.

Use DHCP Option 160
Note: The Zero Touch feature significantly accelerates uptime by enabling multiple
users and phones to automatically be provisioned and added to the IP Phone Manager
Pro.
3.1 Before Implementing Zero Touch
Before implementing Zero Touch, you need to prepare the network.
This section applies to:

the network administrator of the enterprise whose OC is installed on premises (in the
enterprise's LAN)

the system integrator of the Service Provider whose OC is installed in the cloud
(WAN)
To prepare the network for Zero Touch provisioning:

Follow these three steps:
Table 3-1: Preparing the Network for Zero Touch
Step Description
Prepare a template per tenant (see Section 3.2).
Upload the firmware .img file to the server (see Section 3.3).
Configure the DHCP server's Option 160 to allocate the phone to a tenant/site URL (see
Section 3.4).
1
2
3

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3.2 Preparing a Template per Tenant/Model
You need to prepare a template for each tenant / type (phone model) in the deployment.
The template informs the server how to generate the .cfg configuration file when the
phones are plugged in to the network. When the phones are plugged in, the .cfg
configuration file is downloaded to them from the server.
Note: User-configured Speed Dials and Programmable Keys are saved in the phone's
cfg file and backed up on the server. After the user configures them (see the phone's
User's Manual for details), the phone automatically updates the cfg file on the server.
They're downloaded to the phone after:
•they're deleted or some other 'crisis' occurs
•the phone is restored to factory defaults
•the user starts working with a new device
•the user deploys another device at their workstation
•the user's phone is upgraded
This saves the user from having to configure Speed Dials and Programmable Keys from
the beginning. The user only needs to configure them once, initially.
If there is no cfg file on the server, the server gets the data from the phone.
To prepare a template for a tenant / phone model:
1. Open the 'Add new template' screen (Setup >Phones Configuration >Templates >
Add New Template button).
Figure 3-1: IP Phones Configuration Templates page: Add New Template button
Figure 3-2: Add New Template
2. Enter a name for the template. Make the name intuitive. Include tenant and model

Administrator's Manual 3. Implementing Zero Touch Provisioning
Version 7.4 17 One Voice Operations Center
aspects in it.
3. Provide a description of the template to enhance intuitive maintenance.
4. From the 'Tenant' dropdown list, select the tenant.
5. From the 'Type' dropdown list, select the phone model.
6. Select the Default Tenant option for the template to be the default for this tenant.
More than one phone type can be in the same tenant. All can have a common
template. But only one template can be configured per tenant. If a second template is
configured for the tenant, it overrides the first. After a template is added, it's displayed
as shown below in the IP Phones Configuration Template page. When a phone is
then connected to the network, if the phone is of this type and located in this tenant, it
will automatically be provisioned via the DHCP server from the OC provisioning server
(Zero Touch).
Figure 3-3: Default Template Indication
7. From the 'Clone From Template' dropdown list, select a template to clone from. If the
template is for phones in a tenant that are Microsoft Skype for Business phones,
choose a Skype for Business template.
8. Do this for all tenants and types (phone models) in the network.
9. If necessary, click the here link in 'Click here to Download Shared Templates'; your
browser opens displaying AudioCodes share file in which all templates are located, for
example, the templates used with Genesys.
3.3 Uploading .img Firmware File to the Server
After obtaining the phone's latest .img firmware file from AudioCodes, upload it to the OC
provisioning server. When phones are later connected to the network, they're automatically
provisioned with firmware from the server. You can also upload the .dfu firmware files for
the speakers of the Huddle Room Solution (HRS).
To upload the .img firmware file to the OC provisioning server:
1. In the IP Phone Manager Pro, access the Phone Firmware Files page (Setup >
Phones Configuration > Phone Firmware Files).
Figure 3-4: Phone Firmware Files
2. In the Phone Firmware Files screen, click the Add new IP Phone firmware button.
3. Navigate to the .img file and/or .dfu firmware files for the HRS speakers, and upload to
the OC provisioning server.

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3.4 Configuring DHCP Option 160 with a Tenant URL
You need to point DHCP Option 160 to a tenant URL so that the phones will be
automatically provisioned with their .img firmware file and cfg configuration file when they're
plugged in to the network for the first time (Zero Touch provisioning).
Note: The IP Phone Manager Pro supports backward compatibility so you can point
DHCP Option 160 to a region URL. See the Administrator's Manual v7.2 and earlier.
Later when the (Skype for Business) phones are signed in, phones and users are
automatically added to IP Phone Manager Pro which loads their specific .cfg files to them.
To point DHCP Option 160 to a tenant URL:
1. In the IP Phone Manager Pro, open the System Settings page (Setup > Phones
Configuration >System Settings).
2. Click the DHCP Option Configuration button.
3. In the DHCP Option Configuration dialog that opens, click the DHCP Option 160
URLs link located lowermost in the dialog; the dialog extends to display System URLs
and Tenant URLs screen sections.
4. Under the Tenant URLs section, select the tenant (in which the phones are located)
from the 'Tenant' dropdown list. The tenant URLs options are displayed:
Figure 3-5: Tenant URLs
You can configure the phone's tenant URLs to retrieve files either directly from the OC
server or via an SBC HTTP proxy. Using an SBC HTTP proxy server is useful for
customers whose OC is installed in the cloud, or when phones are located behind a NAT.

Administrator's Manual 3. Implementing Zero Touch Provisioning
Version 7.4 19 One Voice Operations Center
5. Choose either:
•The OC has direct access to the phones. The DHCP server will connect the
phones directly to the OC server IP address.
♦Copy (Ctrl+C) the following URL and paste it into DHCP Option 160 in the
enterprise's DHCP server:
HTTP://<OVOC_IP_Address>/firmwarefiles;ipp/tenant/<tenant selected
in Step 1>
•The OC access the IPP's through the SBC HTTP proxy. The DHCP server
directs the phones firstly to an SBC HTTP proxy server, which then redirects to
the OC server.
♦If the phones communicate with an SBC HTTP proxy rather than directly with
the OC server, copy (Ctrl+C) the following URL into DHCP Option 160 in the
enterprise's DHCP server:
http://SBC_PROXY_IP:SBC_PROXY_PORT/firmwarefiles;ipp/tenant/Tenant
•Direct URL for the IPP (No DHCP Available) – typically used for debugging
purposes when no DHCP is available.
Note:
•Configure DHCP option 160 to point to the OC provisioning server's URL if the
phones are not behind a NAT. DHCP Option 66/67 can also be used.
•If the phones reside behind a NAT and an SBC HTTP proxy is available, configure
DHCP Option 160 to point to the SBC HTTP proxy; phone-OC communications will
then be via the SBC HTTP proxy rather than direct.
6. After copying the tenant URL (Ctrl+C) and pasting it into the enterprise's DHCP
server's DHCP Option 160, select the phone model from the 'IPP Model' dropdown
and then click the button IPP with this model will get from the DHCP; an output of
the configuration file that you have configured to provision is displayed. Verify it before
committing to provision multiple phones.
Note: When a deployment covers multiple tenants, the tenants definition can be in two
main hierarchies:
•DHCP server
•Subnet
For Zero Touch provisioning to function, tenant granularity must correspond with the
number of DHCP servers/subnets already located within the enterprise network.

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Figure 3-6: Verifying the Phone's Configuration File
Note: Zero Touch is supported for phones with sign-in capabilities only.