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 > >> > > > >_______________________________________________ > >Asterisk-Users mailing list > >[EMAIL PROTECTED] > >http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
