[asterisk-users] There is no tone on an outgoing call

[dima]

Today I was speaking with my telephony provider. They said that they are
sending to my asterisk a 183 message and that should be enough to hear
the "ring-back" tone. Do I have to change something in the configs to
have this option interpreted?
Thanks in advance

> On Thursday 24 May 2007 09:44, dima wrote:
>> Hello, everyone.
>> I'm having a strange problem with my asterisk. After dialing and
before the other side picks up the phone I should hear the tones (I'm
not sure what are they called: piiiiiiiiiiii---piiiiiiiiiiiiii....) and 
> > in almost all cases that is true
> 
> > However there is a range of numbers where I'm having this problem. There is
> > no tones, just silence, until someone picks up the phone.
> > This does not occur when I call to those numbers with a mobile or regular
> > PSTN phone. 
> 
> If it's working for most numbers and these few then I would suggest it's an 
> issue at the other end and not yours.
> 
> > P.S. I'm using asterisk 1.2.18. The Dial command is the same for all
> > calls: _X.,n,Dial(SIP/${EXTEN}@provider-out,45)
> 
> Try using:  _X.,n,Dial(SIP/${EXTEN}@provider-out,45,r)
> 
>     r    - Indicate ringing to the calling party. Pass no audio to the calling
>            party until the called channel has answered.
> 
> It's possibly what your mobile and PSTN supplier do themselves...
> 
>  - Barry
>