Setting Up Cisco Unified IP Phones using SIP
How to Configure the SIP Registrar
110
Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
DETAILED STEPS
Command or Action
Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
•
Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
call fallback active
Example:
Router(config)# call fallback active
(Optional) Enables a call request to fall back to alternate
dial peers in case of network congestion.
•
This command is used if you want to monitor the proxy
dial peer and fallback to the next preferred dial peer.
For full information on the
call fallback active
command, see
PSTN Fallback Feature
.
Step 4
voice register pool
tag
Example:
Router(config)# voice register pool 12
Enters voice register pool configuration mode for SIP
phones.
•
Use this command to control which registrations are
accepted or rejected by a Cisco Unified SIP SRST
device.
Step 5
id
{
network
address
mask
mask
|
ip
address
mask
mask
|
mac
address
}
Example:
Router(config-register-pool)# id network
172.16.0.0 mask 255.255.0.0
Explicitly identifies a locally available individual or set of
SIP IP phones. The keywords and arguments are defined as
follows:
•
network
address
mask
mask
: The
network
address
mask
mask
keyword/argument combination is used to
accept SIP Register messages for the indicated phone
numbers from any IP phone within the indicated IP
subnet.
•
ip
address
mask
mask
: The
ip
address
mask
mask
keyword/argument combination is used to identify an
individual phone.
•
mac
address
: MAC address of a particular
Cisco Unified IP Phone.
Step 6
preference
preference-order
Example:
Router(config-register-pool)# preference 2
Sets the preference order for the VoIP dial peers to be
created. Range is from 0 to 10. Default is 0, which is the
highest preference.
•
The preference must be greater (lower priority) than the
preference configured with the
preference
keyword in
the
proxy
command.
