asterisk users - Apr 2006 - Early media after a dial command

Hello all,

I've been playing around with early audio, and I'm able to get some
things
working

We have PSTN calls coming in to asterisk in SIP from a Cisco AS5300. If I do
the following:

Exten => i,1,Playback(ss-noservice,noanswer)
Exten => i,2,Congestion(15)
Exten => i,3,Hangup()

The PSTN caller does not get an answered call (doesn't get billed) but hears
the ss-noservice message.

But the early media fails when I try to do the following:

Exten => 100,1,Dial(SIP/100,15)
Exten => 100,2,Playback(standby,noanswer)
Exten => 100,3,Dial(SIP/cell@external,20)

The PSTN caller hears the ringing for the time of the 3 priorities (20s+15s+
time of "standby" sound file)

My guess is the cisco is receiving a 183 "Ringing" and generates (or
the
remote PSTN side generates) a ring tone until the call is answered.
Is there any way to get to have early media passed once a ringing is
generated?
Would there be a way to have asterisk generate the ring tone as early media
to the switch to the "standby" message in early media?

Thanks for your help
Benjamin

Hi Benjamin,

How do you setup early media in asterisk ?

Harry
--- Benjamin Lawetz <blawetz@teliphone.ca> a ?crit :
> Hello all,
> 
> I've been playing around with early audio, and I'm
> able to get some things
> working
> 
> We have PSTN calls coming in to asterisk in SIP from
> a Cisco AS5300. If I do
> the following:
> 
> Exten => i,1,Playback(ss-noservice,noanswer)
> Exten => i,2,Congestion(15)
> Exten => i,3,Hangup()
> 
> The PSTN caller does not get an answered call
> (doesn't get billed) but hears
> the ss-noservice message.
> 
> But the early media fails when I try to do the
> following:
> 
> Exten => 100,1,Dial(SIP/100,15)
> Exten => 100,2,Playback(standby,noanswer)
> Exten => 100,3,Dial(SIP/cell@external,20)
> 
> The PSTN caller hears the ringing for the time of
> the 3 priorities (20s+15s+
> time of "standby" sound file)
> 
> My guess is the cisco is receiving a 183 "Ringing"
> and generates (or the
> remote PSTN side generates) a ring tone until the
> call is answered.
> Is there any way to get to have early media passed
> once a ringing is
> generated?
> Would there be a way to have asterisk generate the
> ring tone as early media
> to the switch to the "standby" message in early
> media?
> 
> Thanks for your help
> Benjamin
> 
> 
> 
> 
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