Post your GW configuration, I have it working on hundreds of GWs fine.
Agreed. There is a lot to configure in survivability - from the simple to the more complex. The simplest would be one DNIS for all failures, no time of day routing:
service cvp-survivability flash:survivability.tcl
param after-hours-agent0 8005551234
param setup-timeout 7
Now let's assume you have configured the RTCP reporting interval as 2000 millseconds
ip rtcp report interval 2000
and the multiples of the RTCP report transmission interval as 4.
ucc-sps-13(config-gateway)#timer receive-rtcp ?
<4-1000> multiples of RTCP report transmission interval. Value of 5 Recommended
4 x 2000 = 8s. IOS multiplies this by a factor of 2 and that's the spread - between 8 and 16s.
The IOS gateway invokes the survivability action between 8 and 16 seconds for an active call with a WAN failure. If IOS detects the absence of both RTP and RTCP packets after 8s and before 16s it invokes the action of survivability defined by the service.
If yours is taking 60s you may have defined one of these params to give that timeout.
Check that you have loaded the application (or rebooted the router since installing the TCL) and check that survivability is defined on the POTS dial peer.
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