[Asterisk-Users] Playing background message

[Rich Adamson]

> When incoming calls come to us, our PSTN line is picked up almost
> immediately - and then asterisk will proceed to dial the SIP extensions.
> During this time the caller hears dead slience - obviously not very good as
> some would think the line just went dead and hang up. I have toyed with the
> idea of playing a 'welcome... your call will be answered shortly' etc...
> message, but can't get it to work how want it.
> 
> The caller will hear a recorded message, followed by music. What I want is
> the caller to hear this WHILE the SIP phones are ringing - but using the
> 'Background' option in extensions.conf seems to make it so that my SIP
> phones won't be dialled until AFTER the music clip is finished - i.e.
> pointless.
> 
> How do I truly set a background audio to play while the internal phones are
> ringing? Is this possible? Music on hold perhaps?

Unless I'm missing something here, from the CLI do a 'show application dial'
and checkout the "r" option, as in:
 exten => 3015,1,Dial(SIP/3015,15,tr)