[Asterisk-Users] Overhead Paging

[Brian Pavane]

Chris,

What you're talking about is exactly what I'm looking for.  I'm interested in 
the middleware that would sit between the speakers and the IAD.  I have found 
the Bogen TAMB device -- however I was wondering if anyone had any experience 
with this box.  How many speakers can you power off of the unit without needing 
an external amp, etc...

-Brian

Chris Shaw wrote:

> ----- Original Message -----
> From: "Brian Pavane" <asterisk-users at brianpavane.org>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
> Sent: Thursday, August 26, 2004 5:12 AM
> Subject: [Asterisk-Users] Overhead Paging
> 
> 
> 
>>All,
>>
>>I am currently implementing a VoIP PBX, and need to deal with the paging
>>situation.  I would prefer to do paging via overhead speakers.
>>
>>My plan is to connect a "Paging Unit" to an FXS port of an IAD, and assign
> 
> an
> 
>>extension to that port.  I would then simply be able to call that
> 
> extension, and
> 
>>have my call patched through to the overhead speakers.
>>
>>Has anyone implemented this type of setup, if so, what type of paging unit
> 
> did
> 
>>you deploy, did you require an external amplifier or power supply, and how
> 
> many
> 
>>speakers were you able to connect to the unit?  As it stands, I will need
>>between 4 and 8 speakers, and some of the speakers will be 400 feet from
> 
> the
> 
>>main telco closet.
>>
>>Any thoughts, comments, and suggestions that you can shed on this topic
> 
> would be
> 
>>much appreciated.  If you have other methods of implementing overhead
> 
> paging, I
> 
>>would also be interested.
>>
>>-Brian
> 
> 
> The Valcom units don't mention SIP... they must be some proprietary
> protocol, also says it's Windows based... eww...
> 
> Anything that you can do to an FXS port on a regular PBX you should be able
> to do to the FXS port of an IAD (within reason of course). You don't usually
> connect the speakers directly to the FXS, usually there's a device like an
> inline power supply that provides voltage and audio to the speakers or
> bullhorn...
> 
> The GrandStream HT486 has a nice intercom function which sends a "BEEP!"
> before answering. The SPA-2000 also has an intercom but doesn't provide the
> beep...
> 
>     -Chris
> 
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