[Asterisk-Users] No audio on PRI channel answered by Playback() or MeetMe()

[Larry Shields]

Does Asterisk need a sound card or functional Console/dsp to answer inbound 
DID number from PRI and playback .gsm files?

I can call from any of the SIP extensions on Asterisk and hear audio from 
Playback(), MeetMe(), or MOH.  The problem I am having with calls from my 
PRI is as follows:

I have an Asterisk  (CVS-HEAD-08/25/04-20:28:51) currently interfacing a 
NEAX 2400 IPX with PRI.  I have a single DID number that rings in from the 
NEC IPX on PRI Span 1, trunk group 1.  If  I assign the inbound DID to ring 
an extension on Asterisk, ie. SIP/2000, it in fact rings and when answered I

have a complete 2-way voice path.  If I change the destination of the 
inbound DID from SIP/2000 to MeetMe() or Playback(), Asterisk will answer 
and I can see from the CLI the .gsm file being played but there is no 
playback audio heard on the calling extension.

If I assign the DID to ring extension SIP/2000 and then after time-out send 
it to MeetMe() or Playback() it works and the caller hears the .gsm file. 
Any assistance in solving this problem is appreciated.

What follows are two examples from what I tried in extensions.conf:

This works but is not desirable:

[nec_pri]
; Digital PRI from the NEAX2400

exten => 2688,1,Wait,1
exten => 2688,2,Dial(SIP/2000,3,Tr)
exten => 2688,3,Wait,1
exten => 2688,4,MeetMe,|Mps
exten => 2688,5,Hangup

This will answer, but there is no audible playback on the channel:

[nec_pri]
; Digital PRI from the NEAX2400

exten => 2688,1,Wait,3
exten => 2688,2,MeetMe,|Mps
exten => 2688,3,Hangup

This is what is displayed from the CLI while the calling station is 
connected via PRI:

   -- Accepting call from '2502' to '2688' on channel 0/4, span 1
   -- Executing Wait("Zap/4-1", "3") in new stack
   -- Executing MeetMe("Zap/4-1", "|Mps") in new stack
   -- Playing 'conf-getconfno' (language 'en')
   -- Playing 'conf-getconfno' (language 'en')
   -- Playing 'conf-getconfno' (language 'en')
   -- Executing Hangup("Zap/4-1", "") in new stack
 == Spawn extension (nec_pri, 2688, 3) exited non-zero on 'Zap/4-1'
   -- Hungup 'Zap/4-1'
MDBRIDGE*CLI>


Thank you,
--LJ

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