When testing SRST, I'm getting a symptom in which inbound calls are not getting connected to the ephone that is properly registered with the Reception DN. Outbound calls work fine.
The FXO port answers the call, then the caller only hears silence. The caller does not get disconnected, no dial/busy-tone, nothing...just silence. I can see the LED on the fxo port lit in Active status for the entire length of the call, so I know that I'm connected. The PLAR does not seem to be working. I ran debug on voice ccapi inout/error as well as voice dialpeer inout/error. I receive no errors and the correct inbound dialpeer is matched. There are two 4-port FXO cards in the VGW and POTS test calls to both cards end with the same result. The voice ccapi inout debug output is attached.
The CM is ver 8.03 and the VGW is model 2951 running MGCP on IOS ver 15.1(1) T2. I have the exact same config running on a test 2951 VGW in a lab and it works flawlessly. I've done a stare & compare on both the working and non-working configs and do not see any difference. My next step was to replace the FXO card(s) to see what happens before I open a TAC, but thought I'd check with Peers before doing so in case I'm missing something simple.
Has anyone else experience such a symtom? I've search the net looking for any simliar problems, but have yet to find anything.
In the example below, the POTS Line TN = 555111. The PLAR is to the Reception DN @ 5552222.
Here's my config:
service alternate Default
echo-cancel coverage 64
timing hookflash-out 50
connection plar 5552222
description IB Redirect Port - 5551111
dspfarm profile 111 mtp
maximum sessions hardware 119
associate application SCCP
dial-peer voice 999001 pots
max-conferences 2 gain -6
limit-dn 7945 1
limit-dn 7975 2
ip source-address 192.168.1.1 port 2000
max-dn 100 dual-line
system message primary Failover - Dial 9 for LineOut