Specifications

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Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 8.0
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
Note Cisco Extension Mobility Cross Cluster is an exception, in that the phone permits a TLS connection to
Cisco Unified Communications Manager for secure signaling even without the CTL file.
If you configure security-related settings in Cisco Unified Communications Manager Administration,
the phone configuration file will contain sensitive information. To ensure the privacy of a configuration
file, you must configure it for encryption. For detailed information, refer to Configuring Encrypted
Phone Configuration Files in Cisco Unified Communications Manager Security Guide.
A phone requests a configuration file whenever it resets and registers with
Cisco Unified Communications Manager.
A phone accesses a default configuration file named XmlDefault.cnf.xml only when the phone has not
received a valid Trust List file containing a certificate assigned to the Cisco Unified Communications
Manager and TFTP.
If auto registration is not enabled and you did not add the phone to the Cisco Unified Communications
Manager database, the phone does not attempt to register with Cisco Unified Communications Manager.
The phone continually displays the “Configuring IP” message until you either enable auto-registration
or add the phone to the Cisco Unified Communications Manager database.
If the phone has registered before, the phone will access the configuration file named
SEPmac_address.cnf.xml, where mac_address is the MAC address of the phone. For more information
about how the phone interacts with the TFTP server, refer to Cisco Unified Communications Manager
System Guide, Cisco TFTP.
If you configure security-related settings in Cisco Unified Communications Manager Administration,
the phone configuration file will contain sensitive information. To ensure the privacy of a configuration
file, you must configure it for encryption. For more information, refer to Configuring Encrypted Phone
Configuration Files in Cisco Unified Communications Manager Security Guide.
SIP Dial Rules
For Cisco Unified IP Phones running under SIP, the administrator uses dial rules to configure SIP phone
dial plans. These dial plans must be associated with a SIP phone device to enable dial plans to be sent
to the configuration file. If the administrator does not configure a SIP phone dial plan, the phone does
not display any indication of a dial plan. In this case, you must press the Dial softkey, unless the phone
supports key press markup language (KPML).
For more information on configuring SIP dial rules, refer to the Cisco Unified Communications Manager
Administration Guide.
Understanding the Phone Startup Process
When connecting to the VoIP network, the Cisco IP Phone goes through a standard startup process, as
described in Table 2-3. Depending on your specific network configuration, not all of these steps may
occur on your Cisco Unified IP Phone.