I had a working scheme: CUCM - h323 GW - IPtoIP - h323 GW SP
But resently something happened: now simultaneously I have only 3 active calls through my provider's GW. Fourth,
fifth and next calls drops by timeout.
I didn't change Locations in CUCM, by default - unlimited.
Then the call is unseccessful, RTMT shows ( 47 ) Resource unavailable, unspecified.
But I have free DSP resurses.
IOS version on my GW - 15.1(4)M2
It seems that while 3 calls are in progress, GWs can't understand each other over h245 about next call. They can't find adress and port for date transfer (RemoteMediaIPAddress=0.0.0.0 RemoteMediaPort=0). And at the same time CoderTypeRate=g729r8 pre-ietf, but I don't use this codec.
Providers GW IP - AAA.BBB.CCC.DDD
My GW IP - 10.10.10.72
My GW Loopback - 10.255.255.10
There is a calling number translation in IPtoIP settings. All calling numbers translates to 8YYYYYYYYYY
126.96.36.199 - CUCM Publisher
188.8.131.52 - CUCM Subscriber
Calling number - 8XXXXXXXXXX
There are logs of "lucky" and "unlucky" calls in attachments:
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