[Spce-user] Calls drop after 30 secs

[George Mason]

Hi,

I am having an issue with the SPCE Amazon EC2 image. I have configured
the server to forward all calls to a SIP provider with a couple of IP
handsets registered as subscribers. I can get a call to go through to
the PSTN and audio in both directions, but the call appears to drop
after approx. 30 secs.

I have run a UDP trace of the signalling and it looks like SPCE drops
the call, I found the following in the logs:

rtp.log
Aug 19 10:54:53 ip-10-237-180-106 rtpengine[26167]: Got valid command
from 127.0.0.1:56413: delete - { "call-id":
"60174c70-66e7d6e1 at 192.168.100.136", "received-from": [ "IP4",
"127.0.0.1" ], "from-tag": "317FA286-53F32CDB000A6E08-C56FB700",
"to-tag": "2cfee724f53bdbbdo0", "command": "delete" }

sems.log
Aug 19 10:54:53 ip-10-237-180-106 ngcp-sems[26328]: [#7f11c4ef3700]
[update_uac_request, trans_layer.cpp:2047] WARNING:  While sending 200
ACK: no matching transaction

Looks like either Sems or Asterisk is telling Kamailio to drop the call
- not sure what's going on here? Grateful of any feedback.

Thanks

George