[asterisk-dev] On PRIs, blocked channels, congestiona and telco technicians

[Jay R. Ashworth]

On Thu, May 29, 2008 at 11:23:48AM -0500, Imran Ahmed wrote:
> We had the same issue  before with global crossing, If you notice
> asterisk would automatically try to reset the channel after the
> release complete is received, which is successful, but the telco's
> switch still refuses to unblock the channel, the switch does not send
> any incoming calls on the blocked channel either.
> 
> On some occassions when we detected the problem, we got the telco's
> tech online and asked them to reset just that channel from their side,
> and then channel started working fine.
> 
> After all the debugging and tracing, we had concluded that it was a
> telco's switch issue, and had to bear with it until we switched
> carriers and we don't have that issue any more or may be we do, but
> haven't yet detected it.

I don't know if it will be pertinent, but if you originate a lot of
outbound traffic -- especially in a telemarketing type environment
where your completion percentage is low -- you may be suffering from
"throttling" by the carrier (who only gets paid for the talk minutes,
not the setup ones).

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com                     '87 e24
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274

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