[VoIP] How to do more then one thing at the same time in a extension dial plan?

[Chad Perkins]

I had a sort of similar problem where I wanted to ring a Zap channel (to deliver 
CallerID to an outboard device) while routing the caller to something other than 
ringing.  The solution also needed to be non-blocking so that if a second call came in 
on top of the first before the CallerID "line" was freed up, that it wouldn't be busy (to 
the caller).

I accomplished this by having extensions.conf create a "call file" to make the call to 
the CallerID device while the dialplan continued on with the primary objective of the 
call.  This "system" could be used to add CallerID boxes to old key systems or other 
multiline scenarios.

Chad

On 16 Feb 2008 at 20:42, gijones at clear.net.nz wrote:
> Mark thanks for the quick reply, I now have a starting point. I'll
> look into your suggestion about the music on hold.
> 
> It will be interesting to see what other suggestions people have.
> 
> Thanks
> Brent

> ----- Original Message ----- 
> From: "Mark Rudholm" <mark at rudholm.com>
> To: "Voice Over IP Tandem for Analog Switches" <voip at ckts.info>
> Sent: Saturday, February 16, 2008 8:27 PM
> Subject: Re: [VoIP] How to do more then one thing at the same time in
> a extension dial plan?
> 
> 
> > gijones at clear.net.nz wrote:
> >> Hi All
> >>
> >> I am not sure if this is possible but I want to be able to playback
> >> a recording to a caller but at the same time be ringing another
> >> phone and both things stopping when the caller hangsup.
> >>
> >> I'll explain what I am trying to do.
> >>
> >> I am a volunteer in the telecommunications section of a museum. We
> >> have a map showing how phone calls can go around the world.  It has
> >> strings lights inside plastic tubing.  Some go off the map to a
> >> satellite then back down.  Others lie flat on the map representing
> >> submarine cables.  This was made 10 - 20 years ago.  All that was
> >> done is that the lights for each route are wired to an extension on
> >> a step by step PABX. So to work it a visitor simply dials the
> >> extension number for the country they are interested in.  The
> >> caller doesn't hear anything but ringback tone.
> >>
> >> One of the members has suggested we have  greetings appropriate to
> >> the country.  The playback and ringing individually is not a
> >> problem but I need both things to happen at the same time.  I would
> >> like to use the exisiting system to save a big rewiring job.  I
> >> already have the Asterisk box connected to a small PABX that can
> >> then dial into the bigger PABX.
> >>
> >> Any help will be greatly appreciated.
> >
> > So, in essence what you're trying to do is replace the standard
> > ringback call progress tone with an arbitrary recording.  This is
> > very easy to do with the "m" option in the Dial() command. It lets
> > you set a Music-on-Hold class as the ringing call progress tone.
> >
> > You'll want to set things up so that the recording starts from
> > the beginning each time it is played.  I'm not sure how to do
> > that but I suspect there's a way.
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