[Asterisk-Users] Paging/Intercom (was: OT - SIP Auto-Answer for Cisco 7940/7960!!)

[Andy Hester]

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com]On Behalf Of John Todd
> Sent: Sunday, October 19, 2003 6:40 PM
> To: asterisk-users at lists.digium.com
> Subject: RE: [Asterisk-Users] Paging/Intercom (was: OT - SIP Auto-Answer
> for Cisco 7940/7960!!)
>
>
> >  > On the analog front, since we're talking about paging or intercom: it
> >>  has been mentioned that the Sayson ADSI phones (Aastra?) are
> >>  integrated with an Altigen PBX system, that the phones can support
> >>  paging.  See the link below.
> >>
> >>  http://www.sayson.com/product/Altigen.htm
> >>
> >>  If this could be combined with a Cisco ATA-186 or similar product,
> >>  would it not be possible to have paging via SIP delivery?  I have not
> >>  put anything other than the most basic thought into this, and I don't
> >>  know exactly how they support ADSI-based paging, but has anyone
> >>  worked on this?  I mentioned it via IRC and someone said they took a
> >>  half-hearted stab at it, but it didn't sound like it had been
> >>  explored in depth.  That is a major feature issue that most business
> >>  customers are looking for, and it would be great to have some
> >>  combination of devices that offered paging or intercom.
> >>
> >  > JT
> >
> >I have just put in some analog phones that offer intercom/paging and work
> >rather well so far.
> >
> >They are Smartalk phones. (NOT ADSI)  The guys there have been real good
> >about helping me get buttons programmed exactly the way I want them etc.
> >These phones also allow for staion monitoring and have an
> attendant console.
> >These phones use 4-pair wiring so 3 lines + power pair.  The
> power pair is
> >also responsible for the intercom/paging/station monitoring.
> With the right
> >wiring it might work with an ata device.  Just a thought.
> >
> >http://smartalk.ca/nrgover.htm
> >
> >Andy
>
> 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.)
Snip
> JT

It runs on Cat5.  The paging/intercom/station monitoring all occurs over the
power pair. (pin1&8)The power pair wouldn't go to * at all.  It works
seemlessly so far on a channel bank. As for the ATA-186, I am not familiar
with the wiring of the ATA, but it seems that you could use a surface mount
jack with 1 or 2 lines as needed.  You'd just have to get pair 1&8 hooked up
to the central power supply.  It may be more trouble than its worth to you,
but I mentioned it in response to your earlier post just because people
always seem to be asking for these features regarless of the type of phone.

Andy

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