[Asterisk-Users] Early media after a dial command

[Benjamin Lawetz]

Actually Harry, there is no setup needed. You can send early audio with the
Playback command by adding the noanswer parameter (see example). But the
other end of must support/offer it.

But back to my problem, I thought maybe if asterisk generated the ring tone
it might accept the early audio afterwards, but nope, doesn't work either.

Anybody have any ideas/explanations?

Thanks


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
hgaillac-sip at yahoo.fr
Sent: April 27, 2006 12:24 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] Early media after a dial command

Hi Benjamin,

How do you setup early media in asterisk ?

Harry
--- Benjamin Lawetz <blawetz at teliphone.ca> a écrit :

> 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 at 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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