[asterisk-dev] Asterisk as a Gateway

Richard Mudgett rmudgett at digium.com
Wed Aug 25 14:28:57 CDT 2010


> I want to use Asterisk as an Avaya H323 -> PRI-ISDN gateway.
> 
> 
> 
> Questions:
> 
> 1) Will this work?

You should be able to set this up and get it working.

> 2) Will the duplicate channels be dropped when an Avaya extension
> places a call across the H.323 thru Asterisk and out the PRI, and a
> call is placed to an Avaya extension from the PRI side thru Asterisk,
> thru H323, using QSIG path replacement, or explicit call transfer
> command issued on the PRI?

Unfortunately, no.  Libpri does not support receiving path replacement messages to eliminate the tromboned call you describe.  I don't know how well the code will work for eliminating a tromboned call in the other direction will work.

> 3) If the answer is yes, would the duplicate H323 channels be dropped
> as well and essentially ending up with a call between two Avaya
> extensions?

I don't know if the H323 channel driver would eliminate tromboned calls.

Richard



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