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How to configure H323 gateway to send second call out PRI channels?

I have a route pattern that goes out to an H323 gateway (3660), which has 1 PRI on it. If you make a second call to the same number, which is busy, (it's a FAX) the calls go through the second route group instead of a second PRI channel on the H323 gateway. How can I configure the gateway to have calls, going to the same number, go out a second PRI channel instead of going to the next route group. Is there a way to do this, or do I have to make it an MGCP gateway. The IOS is 12.2.11T. CM is 3.1.3a.

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Re: How to configure H323 gateway to send second call out PRI ch

I suspect what is happening is that the call is actually going out the first PRI, but since it is getting BUSY, it is retrying the next member of the route group. Can you check what the stoproutingonuserbusy flag is set to in the CM service paramaters? This should be True.

Re: How to configure H323 gateway to send second call out PRI ch

That was the issue. I set the flag to true and it stops routing when the line is busy. Thanks.

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