On Sun, 2003-10-19 at 18:40, John Todd wrote: > Looks useful, but requires essentially a second line to work as a > pager or intercom. Not necessarily a bad thing, but as an an example > it would require a whole ATA-186 to just get one line and the > "paging" feature working, plus perhaps some additional wiring to work > that all into the power pair. Also, it is unclear if that will work > at all, since there is no documentation on their website about how, > exactly, the "pager" or "intercom" features work. It's completely > undiscussed at the nuts-and-bolts level (though they tell you what > buttons to push.)
Whats important to note, I think these do out of band negotiation on a common wire pair. These phones usually are setup on the end of a set of analog phones lines all wired the same. Basically instead of having a intelligent switch front the phones, each phone communicates to each other what it is doing. Since they need common wiring, a ATA186 wouldn't help you here. > I'm still waiting for a _good_ implementation of paging and intercom > for use with SIP. Let's define "good" for an intercom/pager (i/p): > > Mandatory: > - i/p can be activated while user is off hook (speakerphone or handset) > - deskset has local option for refusal of i/p while off-hook > - deskset has local option for refusal of i/p completely > - deskset has separate volume controls for i/p messages > - deskset plays announcement beep before intercom auto-answer > - password authenticated SIP messages for auto-answer i/p (i.e.: no > spam calls get through that aren't authenticated by a chosen upstream > proxy server) > > optional: > - pager announcement audio via multicast (very, very optional) > > JT > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users -- Steven Critchfield <[EMAIL PROTECTED]> _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
