This chapter helps you install the Cisco Unified IP Phones 7906G
and 7911G on a Cisco Unified Communications network.
Before you install a Cisco Unified IP phone, you must decide how to
configure the phone in your network. Then you can install the phone and verify
its functionality. For more information, see
Cisco Unified IP Phones and Telephony Networks.
Before You Begin
Before installing the Cisco Unified IP Phone, review the
requirements in this section.
For the Cisco Unified IP Phone 7906G and 7911G to successfully operate as a Cisco Unified IP Phone endpoint in your network, your network must meet these requirements:
Working Voice over IP (VoIP) Network
VoIP configured on your Cisco routers and gateways
Cisco Unified Communications Manager Release 4.x or higher installed in your network and configured to handle call processing
The minimum firmware release that must be installed on the phone is 7.2(1).
IP network that supports DHCP or manual assignment of IP address, gateway, and subnet mask
The Cisco Unified IP Phone displays the date and time from Cisco Unified Communications Manager. The time displayed on the phone can differ from the Cisco Unified Communications Manager time by up to 10 seconds. If the Cisco Unified Communications Manager server is located in a different time zone than the phones, the phones will not display the correct local time.
Cisco Unified Communications Manager Setup
The Cisco Unified IP Phone requires
Cisco Unified Communications Manager to handle call processing. See the
Cisco Unified Communications Manager Administration Guide or
context-sensitive help in the Cisco Unified Communications Manager application
to ensure that Cisco Unified Communications Manager is set up properly to
manage the phone and to properly route and process calls.
If you plan to use autoregistration, verify that it is enabled
and properly configured in Cisco Unified Communications Manager Administration
before connecting any Cisco Unified IP Phone to the network. For information
about enabling and configuring autoregistration, see the
Cisco Unified Communications Manager Administration Guide.
You must use Cisco Unified Communications Manager
Administration to configure and assign features to the Cisco Unified IP Phones.
In Cisco Unified Communications Manager Administration, you can
add users to the database and associate them with specific phones. In this way,
users can access their Cisco Unified CM User Option page to configure items
such as Call Forward, Speed Dial, and voice message system options.
The following ports are available on the Cisco Unified IP
Phones 7906G and 7911G:
Network port—Labeled 10/100 SW. Use the network port to connect the
phone to the network. You must use a straight-through cable on this port. The
phone can also obtain inline power from the Cisco Catalyst switch over this
Cisco Unified IP Phone Power
Access port (Cisco Unified IP Phone 7911G only)—Labeled 10/100 PC.
Use the access port to connect a network device, such as a computer, to the
phone. You must use a straight-through cable on this port.
Each port supports 10/100 Mbps half- or full-duplex connections
to external devices. The speed and connection type are set through
auto-negotiation. You can use either Category 3 or 5 cabling for 10-Mbps
connections, but you must use Category 5 for 100 Mbps connections.
Set Up Group Listen Mode on Cisco Unified Communications Manager
Group Listen mode is disabled by default.
The Monitor feature softkeys are not available if Group Listen mode is enabled.
To enable this mode, you use the Phone
Configuration window in Cisco Unified Communications Manager Administration.
From Cisco Unified Communications Manager Administration, choose
Device > Phone
and locate the phone you want to modify.
In the Phone Configuration window for the phone (Product Specific
Configuration section), check the
Enable Group Listen check box.
Group Listen Activation on Phone
Group Listen softkeys are displayed if Group Listen mode is
enabled on Cisco Unified Communications Manager. However,
these softkeys cannot be configured using the Cisco Unified Communications
Manager softkey template.
GListen: Activates Group Listen on the phone. Displayed when
Group Listen mode is enabled but not activated on the
phone. After Group Listen is activated on the phone (by pressing
GListen), users can deactivate it by hanging up the handset or
GLOff: Deactivates Group Listen on the phone. Displayed when
Group Listen mode is enabled and activated on the phone.
The GListen and GLOff softkeys replace the Monitor and MonOff softkeys when Group Listen mode is enabled in Cisco Unified Communications Manager.
Although Cisco performs internal testing of third-party
headsets for use with the Cisco Unified IP Phones, Cisco does not certify or
support products from headset or handset vendors.
Cisco recommends the use of good quality external devices, for
example, headsets that are screened against unwanted radio frequency (RF) and
audio frequency (AF) signals. Depending on the quality of headsets and their
proximity to other devices such as cell phones and two-way radios, some audio
noise or echo may still occur. An audible hum or buzz may be heard by either
the remote party or by both the remote party and the Cisco Unified IP Phone
user. Humming or buzzing sounds can be caused by a range of outside sources;
for example, electric lights, electric motors, or large PC monitors. See External Device Use
for more information.
In some cases, hum may be reduced or eliminated by using a local power
cube or power injector.
These environmental and hardware inconsistencies in the
locations where Cisco Unified IP Phones are deployed means that there is not a
single headset solution that is optimal for all environments.
Cisco recommends that customers test headsets in their intended
environment to determine performance before making a purchasing decision and
deploying in mass quantities.
The Cisco Unified IP Phone 7906G and 7911G supports wideband headsets.
Beyond physical, mechanical, and technical performance, the audio portion of a headset must sound good to the user and to the party on the far end. Sound quality is subjective and Cisco cannot guarantee the performance of any headsets. However, a variety of headsets from leading headset manufacturers are reported to perform well with Cisco Unified IP Phones.
To connect a headset to the Cisco Unified IP Phones, plug it
into the RJ-9 Handset port on the back of the phone. Depending on headset
manufacturer’s recommendations, an external amplifier may be required. See
headset manufacturer's product documentation for details.
You can use the headset with all of the features on the
Cisco Unified IP Phones, including using the Volume button.
External Device Use
Cisco recommends the use of good quality external devices, such as speakers, microphones, and headsets that are shielded (screened) against unwanted radio frequency (RF) and audio frequency (AF) signals.
Depending on the quality of these devices and their proximity to other devices, such as mobile phones or two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take one or more of the following actions:
Move the external device away from the source of the RF or AF signals.
Route the external device cables away from the source of the RF or AF signals.
Use shielded cables for the external device, or use cables with a better shield and connector.
Shorten the length of the external device cable.
Apply ferrites or other such devices on the cables for the external device.
Cisco cannot guarantee the performance of the system because Cisco has no control over the quality of external devices, cables, and connectors. The system performs adequately when suitable devices are attached with good quality cables and connectors.
In European Union countries, use only external headsets that are fully compliant with the EMC Directive [89/336/EC].
Install Cisco Unified IP Phones
You must connect the Cisco Unified IP Phones to the network
and to a power source before using it.
Always upgrade the phone to the current firmware image before installation.
Before using external devices, read External Device Use for safety and
To install a Cisco Unified IP Phones, perform the following
The following figures show how to install the footstand on the
Cisco Unified IP Phone 7906 and 7911, respectively.
Figure 1. Connecting the Footstand (Cisco Unified IP Phone 7906G
Figure 2. Connecting the Footstand (Cisco Unified IP Phone 7911G
Cisco Unified IP Phone 7906G Installation
The following graphic and table show how to connect the Cisco Unified IP Phone 7906G.
Network port (10/100 SW)
AC-to-DC power supply
AC power cord
DC adapter port (DC48V)
Cisco Unified IP Phone 7911G Installation
The following graphic and table show how to connect the Cisco
Unified IP Phone 7911G:
Network port (10/100 SW)
DC adapter port (DC48V)
Access port (10/100 PC)
AC-to-DC power supply
AC power cord
Mount Phone on Wall
You can mount the Cisco Unified IP Phones on a wall by using the back of the phone as a mounting bracket or you can use special brackets available in a Cisco Unified IP Phones wall mount kit. Wall mount kits must be ordered separately from the phones. If you attach the phone to a wall by using the back of the phone and not the wall mount kit, you need to supply the following tools and parts:
Screws to secure the Cisco Unified IP Phone to the wall
The security features protect against several threats,
including threats to the identity of the phone and to data. These features
establish and maintain authenticated communication streams between the phone
and the Cisco Unified Communications Manager server, and digitally sign files
before they are delivered.
You can install an Locally Significant Certificate (LSC)
from the Security Configuration menu on the phone. This menu also lets you
update or remove an LSC.
Before You Begin
Make sure that the appropriate Cisco Unified Communications
Manager and the Certificate Authority Proxy Function (CAPF) security
configurations are complete:
The CTL or ITL file should
have a CAPF certificate.
On Cisco Unified
Communications Operating System Administration, verify that the CAPF
certificate has been installed.
The CAPF is running and
The phone should have the
correct load file. To verify the image, press the
Applications Menu button and choose
Settings > Model
For more information, see the Cisco Unified Communications Manager Security Guide.
To manually configure an LSC on the phone, follow these
Obtain the CAPF authentication code that was set when the CAPF was
From the phone, press
Applications Menu and choose
Settings > Security
You can control access to the Settings Menu using the
Settings Access field in the Cisco Unified Communications Manager
Administration Phone Configuration window. For more information, see
Cisco Unified Communications Manager Administration
**# to unlock settings on the Security
Configuration menu. See
Unlock and Lock Options for
information using locking and unlocking options.
If a Settings Menu password has been set up, SIP phones present
Enter password prompt after you enter **#.
Scroll to LSC and press
The phone prompts for an authentication string.
Enter the authentication code and press
The phone begins to install, update, or remove the LSC, depending
on how the CAPF was configured. During the procedure, a series of messages
displays in the LSC option field in the Security Configuration menu so that you
can monitor progress. When the procedure completes successfully, the phone
displays Installed or Not Installed.
The LSC install, update, or removal process can take a long time
to complete. You can stop the process at any time by pressing
Stop from the Security Configuration
menu. (Settings must be unlocked before you can press this softkey.)
When the phone successfully completes the installation procedure,
Success. If the phone displays
Failure, the authorization string may be incorrect or the
phone may not be enabled for upgrading. Refer to error messages generated on
the CAPF server and take appropriate actions.
You can verify that an LSC is installed on the phone by pressing
Applications Menu, then choosing
Settings > Model
Information, and ensuring that the LSC setting shows