Instruction Manual

A-21
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SIP), Cisco Unified IP Phones
OL-8131-01
Appendix A Reference List of Parameters
Configuration Parameters
Table A-6 MsgRetryLimits Parameter
Bit Number Definition
0 - 3 Number of times to retransmit the following SIP requests or
responses to the SIP user agent:
• NOTIFY request
• PRACK request
• Final response to an INVITE request
Range: 0 - 15
Default value: 0
With the default setting, the following retransmission attempts
are used:
• NOTIFY request: 6
• PRACK request: 5
• INVITE final response: 7
4 - 7 Number of times to retransmit REGISTER request.
Default value: 0 (number of attempts is 10).
8 - 11 Number of times to retransmit INVITE request.
Default value: 0 (number of attempts is 2).
12 - 15 Number of times to retransmit BYE request.
Default value: 0 (number of attempts is 4).
16 - 19 Number of times to retransmit CANCEL request.
Default value: 0 (number of attempts is 4).
20 - 23 Number of times to retransmit REFER request.
Default value: 0 (number of attempts is 5).
24 - 31 Reserved. The value of these bits must be 0.