Configuring Backup Registrar Service To Sip Phones - Cisco CP-7911G-CH1 System Administrator Manual

How to Configure the SIP Registrar
Command or Action
Step 6
registrar server [expires [max sec] [min sec]]
Example:
Router(conf-serv-sip)# registrar server expires
max 600 min 60
Step 7
end
Example:
Router(conf-serv-sip)# end
What to Do Next
For incoming SIP Register messages to be successfully accepted, users must also set up a voice register
pool. See the

Configuring Backup Registrar Service to SIP Phones

Backup registrar service to SIP IP phones can be provided by configuring a voice register pool on SIP
gateways. The voice register pool configuration provides registration permission control and can also be
used to configure some dial-peer attributes that are applied to the dynamically created VoIP dial peers
when SIP phone registrations match the pool. The following call types are supported:
•
The commands in the configuration below provide registration permission control and set up a basic
voice register pool. The pool gives users control over which registrations are accepted by a Cisco Unified
SIP SRST device and which can be rejected. Registrations that match this pool create VoIP SIP dial peers
with the dial-peer attributes set to these configurations. Although only the id command is mandatory,
this configuration example shows basic functionality.
For command-level information, see the appropriate command page in
Unified SIP SRST Command Reference (All Versions).
Cisco Unified SCCP and SIP SRST System Administrator Guide
108
"Configuring Backup Registrar Service to SIP Phones" section on page
SIP IP phone to or from:
Local PSTN
–
Local analog FXS phones
–
Local SIP IP phone
–
Setting Up Cisco Unified IP Phones using SIP
Purpose
Enables SIP registrar functionality. The keywords and
arguments are defined as follows:
• expires: (Optional) Sets the active time for an incoming
registration.
max sec: (Optional) Maximum expiration time for a
•
registration, in seconds. The range is from 600 to
86400. The default is 3600.

Note
Ensure that the registration expiration timeout is set
to a value smaller than the TCP connection aging
timeout to avoid disconnection from the TCP.
• min sec: (Optional) Minimum expiration time for a
registration, in seconds. The range is from 60 to 3600.
The default is 60.
Returns to privileged EXEC mode.
108.
Cisco Unified SRST and Cisco
OL-13143-04