[asterisk-users] Asterisk - Nortel transfer problem

[Carlos Chavez]

	The E1 between the Asterisk and Nortel is using R2 for signalling.  The
PSTN comes to Asterisk first and then send calls to the Nortel.  When we
started we were just replacing an automatic operator/voicemail system
for the Nortel and all calls went there.  The customer has been
gradually shifting extensions to Asterisk and plans to phase out the
Nortel completely by next year so we will see this problem crop up more
often.

On Tue, 2012-04-24 at 11:45 -0500, Jonn Taylor wrote:
> Please post your E1 configs. If you are not using QSIG you should. On 
> the nortel side this only works well with R6.0 and later. I have a 
> simular setup but with Cisco UCM but the calls come into the Nortel 
> first and then can be passed back and forth between them with no problem.
> 
> On 04/24/2012 10:39 AM, Carlos Chavez wrote:
> > 	I have an Asterisk server connected to a Nortel Pbx via an E1.
> > Everything works fine, I get calls in and out with callerid.  The
> > problem that has been reported to me is the following scenario:
> >
> > A call comes in from the PSTN and is answered by Asterisk.  The person
> > dials the operator (1000) which is on the Nortel side so connection is
> > made through the E1.  The operator answers and then transfers the call
> > back to a SIP extension on the Asterisk (1303).  The result is no audio
> > and a dropped call.
> >
> > 	My main theory at the moment is that when the receptionist hangs up
> > after the transfer the E1 drops on the Nortel side.  Anyone here with
> > this type of integration seen this problem?
> >
> >
> >
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-- 
Telecomunicaciones Abiertas de México S.A. de C.V.
Carlos Chávez Prats
Director de Tecnología
+52-55-91169161 ext 2001
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