a237916

It's just a thought, but your problem may be with AT&T's built in Toll Fraud protection. We've had some vaguely similar issues recently with DTMF detection on some local DID numbers that are remote call forwarded to some AT&T 800 numbers, answer supervision is there and the initial portion of the call completes, but the digits are never delivered after the call is connected so any further forwarding or routing is not possible. It's a somewhat different issue, admittedly, but we've been seeing more and more issues stem from AT&T's toll-fraud protection measures, especially when we're using a '1-off' kind of setup. Our issue was resolved by having the DID numbers involved added to the 4E's 'toll fraud exclusion list,' which may be something to try.

Unfortunately, it's not necessarily easy to find an AT&T maintenance technician that's familiar with this list, but if you keep pushing, it's not impossible.

I know the feeling about 'permanent workarounds' being used instead of fixes...that's something that bothers me as well. In my experience it usually means you're just asking for more trouble later on down the road.

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~Teri