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CUCM 8.6 h323 GW only 3 active calls

Hello.

Can anyone please help me

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

1.2.3.4 - CUCM Publisher

1.2.3.9 - CUCM Subscriber

Calling number - 8XXXXXXXXXX

There are logs of "lucky" and "unlucky" calls in attachments:

- deb voice ccapi inout

- debug cch323 h245

- sh call history voice last 1

Also sh run and sh dsp-g all

I already do not what to to, please help...

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New Member

CUCM 8.6 h323 GW only 3 active calls

The problem was solved only when we with SP changed protocol to SIP.

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