Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding Phone Configuration Files
protocol in the phone configuration file be set to TLS, which corresponds to the transport type in the SIP Security Profile in Cisco Unified Communications Manager.
Note If the device security mode in the configuration file is set to Authenticated or Encrypted, but the phone has not received a CTL file, the phone will continuously try to obtain a CTL file so that it can register securely.
If you configure
A phone accesses a default configuration file named XmlDefault.cnf.xml from the TFTP server when the following conditions exist:
•You have enabled
•The phone has not been added to the Cisco Unified Communications Manager 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 Communications Manager 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.
The TFTP server generates these SIP configuration files:
•SIP IP Phone:
–For unsigned and unencrypted
–For signed
–For signed and encrypted
Cisco Unified IP Phone
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