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Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
A phone accesses a default configuration file named XmlDefault.cnf.xml from the
TFTP server when these conditions exist:
• You have enabled auto-registration in Cisco Unified CallManager
• The phone has not been added to the Cisco Unified CallManager Database
• The phone is registering for the first time
If auto registration is not enabled and the phone has not been added to the
Cisco Unified CallManager Database, the phone registration request will be
rejected. In this case, the phone will reset and attempt to register repeatedly.
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.
Understanding the Phone Startup Process
When connecting to the VoIP network, the Cisco Unified 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.
