[asterisk-users] PRI T1 Problems

[Steve Totaro]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Frank at explido.us
> Sent: Wednesday, May 02, 2007 2:57 PM
> To: asterisk-users at lists.digium.com
> Cc: creslin at digium.com
> Subject: [asterisk-users] PRI T1 Problems
> 
> Sorry for disturbing you, but we have some problems with an
installation
> with multiple (84) T1s from Quest.
> Now, our Problem is disconnected numbers are reported by sending in-
> band channel alert message and the B-Channel will have the tri tone
and
> respective message but the line is never "picked up" and stays in
ringing
> when dialling. So disconnected numbers are never detected as
> disconnected numbers.
> We tried this with digium and sangoma cards and the results are the
same.
> Quest offered us a audible treatment of the line which made things
even
> worse and would block the B-Channel for playing the message without
> asterisk being aware that the channel is still used.
> Otherwise we have a huge problem with congestion due to unavailable B-
> Channels when the number of connections in asterisk does not match the
> number of used channels / channels stay blocked after they have been
> hung up for several seconds, again this seems to be mostly the
problems
> when b-channels carry audible alert messages.
> 
> Thanks for any good suggestions!
> 
> Frank Gorgas-Waller
> Explido Software USA Inc.
> Phone +863-248-1195  &  Fax +863-248-1155
> EMail  frank at explido.us  &  ICQ 7733546
> --QQ-------------------------------------------------------------
> We teach penguin to fly http://www.explido.us
> 


Maybe you can do a reverse Zapteller on the tri-tone to trigger a
disconnect?


Thanks,
Steve Totaro
http://www.asteriskhelpdesk.com/component/option,com_wrapper/Itemid,37/
KB3OPB