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2. Configure a default route to the branch router:
ip route 0.0.0.0/0 100.20.42.65
3. Configure the SIP Media Gateway to listen on port 5070:
voice service voip
sip
bind all ipv4:100.20.42.80:5070
exit sip
exit voip
4. To configure the SIP Survivability Module, bind the IP interface for SIP traffic using
default port 5060:
voice service voip
ssm
bind ip ipv4:100.20.42.80
5. Enable SSM:
enable
6. Configure dialpan. Normal mode NTML is used to route gateway calls to SPSs and to
replace IP address of SPS to domain name. Survivable dial plan is optional.
Configure it only if number translation is required in survivable mode.
dialplan
load normal normal_cs1k.ntm
load survivable backup_cs1k.ntm
exit dialplan
7. Enable SSM keepalives to configure SLG ip-address and monitor connectivity with
SLG:
sip-server
keepalive-server ipv4:100.20.45.167:5070 interval 60 retries 2 transport udp
8. Configure SSM domain to specify SLG domain:
domain dns:interop.com
exit sip-server
9. Configure SSM Call Admission Control on the WAN interface connecting SLG: