If the security profile of the phone is configured for secure signaling (encrypted or authenticated) and the
Cisco Unified Communications Manager is set to secure mode, the phone makes a TLS connection.
Otherwise, the phone makes a nonsecure TCP connection.
If the phone was manually added to the database, Cisco Unified Communications Manager identifies the
phone. If the phone was not manually added to the database and autoregistration is enabled in Cisco
Unified Communications Manager, the phone attempts to autoregister itself in the Cisco
Unified Communications Manager database.
Autoregistration is disabled when you configure the CTL client. In this case, you must add the phone to
the Cisco Unified Communications Manager database manually.
For more information, see the
“
Cisco Unified IP Phone and your network
”
chapter and the
“
Troubleshooting
and maintenance
”
chapter.
Note
Cisco Unified Communications Manager Phone Addition
Methods
Before installing the Cisco Unified IP Phone, you must choose a method for adding phones to the
Cisco Unified Communications Manager database.
The following table provides an overview of the methods for adding phones to the Cisco Unified
Communications Manager database.
Table 8: Methods for Adding Phones to the Cisco Unified Communications Manager Database
Notes
Requires MAC
address?
Method
Results in automatic assignment of directory numbers.
No
Autoregistration
Requires autoregistration and the Bulk Administration Tool
(BAT); updates information in the Cisco Unified IP Phone
and in Cisco Unified Communications Manager
Administration.
No
Autoregistration with the
Tool for Auto-Registered
Phones Support (TAPS)
Requires phones to be added individually.
Yes
Using the Cisco Unified
Communications Manager
Administration
Allows for simultaneous registration of multiple phones.
Yes
Using BAT
Autoregistration Phone Addition
By enabling autoregistration before you begin installing phones, you can:
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0 (SIP)
50
Cisco Unified IP Phone and telephony networks
Cisco Unified Communications Manager Phone Addition Methods
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