[Asterisk-Users] Ringdown Circuit Configuration

[Stephen Webb]

You are right with the ATA. Check this doc out
http://www.cisco.com/univercd/cc/td/doc/product/voice/ata/ataincfg/186ugcc.htm

Look at the section about Pre-Dial.

I wonder if you can do this with a Cisco 7940 or Snom 100/200?


On Tue, 2003-03-18 at 19:34, John Todd wrote:
> I believe the Cisco ATA-186 supports it, but you'd have to do more 
> digging on their site.
> 
> This is really not a protocol issue, but a vendor programming issue. 
> It all depends on if you can get the hardware to do a hotline call 
> when the phone is taken off the hook.
> 
> JT
> 
> 
> >Does anyone know if this can be done by any VoIP Technology (SIP, IAX,
> >IAX2 or MGCP) I don't know the protocols!
> >
> >
> >On Tue, 2003-03-18 at 09:56, Steven Critchfield wrote:
> >>  On Tue, 2003-03-18 at 09:04, Don Pobanz wrote:
> >>  > We have need of a ringdown circuit in an elevator. If someone picks up
> >>  > the phone, it should dial another extension without any keys being
> >>  > pressed. (There are no keys on the phone)
> >>  >
> >>  > If it was an incoming call to asterisk, the following lines in
> >>  > extensions.conf would do the trick.
> >>  > exten => s,1,Answer
> >>  > exten => s,2,Dial,Zap/10
> >>  >
> >>  > However, the 's' state is not valid for just picking up a phone
> >>  > (extension). With nothing being dialed there are no extension matches
> >>  > to make. It is like the dial tone needs to time out in a very short
> >>  > time and instead of getting the busy tone, asterisk should dial an
> >>  > extension.
> >>
> >>  in /etc/asterisk/zapata.conf, I think this is what you are looking for.
> >>  ;
> >>  ; Specify whether the channel should be answered immediately or
> >>  ; if the simple switch should provide dialtone, read digits, etc.
> >>  ;
> >>  immediate=no
> >>
> >
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