asterisk users - Aug 2006 - BriStuff | HFC-S | Progress() | Early B3 on incoming calls from PSTN

Hi folks,

I'm currently trying to get some early audio, i.e. audio without a 
connection, to the caller to give some cost-free info while the alerting 
phase.

The WIKI's info on the Progress() application says, that just Progress() 
before e.g. a Background(soundfile|n) should work but it doesn't.
In fact, the call times out ("The person you've called is temporarily 
not available") if there is no ringing indication for longer than 30 
secs or so (long sound).
As soon as the Dial application is called, the caller gets a normal 
ringing indication. Dial(...|m) causes the caller to hear nothing and 
the call to timeout.

So, I guess, in addition to Progress(), * has to tell the PSTN that the 
call is proceeding AND that there is audio, i.e. inband information, 
available and it should be passed to the caller.

I guess, the focus should be on the progress indication as the call 
timeout shows, that the PSTN isn't satisfied with just what Progress() 
sends.

Does anyone got this Early-B3 working with BriStuff and HFC-S?

Regards,
Stefan

-- 
  (o_   Stefan Gofferje            | SCLT, MCP, CCSA
  //\   Reg'd Linux User #247167   | VCP #2263
  V_/_  Heckler & Koch - the original point and click interface
        Asterisk 1.2.9.1-BRIstuffed-0.3.0-PRE-1r | chan_sccp

Hi,

On Wed, 2006-08-09 at 20:50 +0200, Stefan Gofferje
wrote:
> Hi folks,
> 
> I'm currently trying to get some early audio, i.e. audio without a 
> connection, to the caller to give some cost-free info while the alerting 
> phase.
Many (if not all) telco does not allow sending inband audio
to the caller if not connected. So your caller will
always get the ringtone, that's generated by the telco.

Or they won't be able to sell toll free numbers :)

Some telcos allow sending inband audio for few seconds
on the PRI, but depends on the agreements you made.

matteo.