Let me first start off by saying that I am almost positive this problem does not have to do with dial-pattern matching on the callmanager.
I have an interesting problem when calling long distance or toll-free #'s I get ringback almost instantaneously. When calling local 10digit numbers it can take up to 12 seconds to hear ringback and place the call.
The calls go from 7960 to Call-Manager to 3640 Gateway to Avaya PBX to PSTN
I jumped on the Gateway and debugged ISDN Q931 with the TAC and noticed an interesting difference.
*Jan 12 04:04:18.675: Progress Ind i = 0x8488 - In-band info or
appropriate now available
As you can see by the time-stamps this is about a 5 sec difference. So this might only be one piece of the problem. We didn't have this issue until about 2 weeks ago.
The TAC has indicated that the problem is on the Avaya PBX, but our group says nothing has changed. The VoIP group says nothing should have changed. So that only leaves the provider. Local calls go out BellSouth and LD goes out AT&T.
I am confused about how to troubleshoot this further. Anyone have ideas?
Check on the Avaya PBX (with debugs), when the Alerting from the PSTN arrives and when the Alerting is passed on to the 3640 gateway. If the Alerting is already arriving late from the PSTN, then you need to contact your carrier to know what they might have changed.
I believe you are encountering a recently changed behavior in CCM. CCM used to cut through audio when any progress indicator was received, well this has recently changed so we only cut through on PI=8. Try configuring this on your POTS dial-peer that is matched to send the call to the PBX:
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
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