I would tend to agree with Dave, a cheapo FXO card will give you a 600 ohm
ouput which will be fine to connect directly to a Paging Amp input. You
really don't need a large amp to do this. I used to buy amps from radio
shack that we installed in Shoppers Drug Mart for just this purpose.
If you plan on more than a few ceiling speakers or horns then you will
have to go with a 70v system where each speaker has a transformer attached
but for just 4 speakers you can use 8 ohm speakers that are very cheap and
work well.

Henry



-- 
Henry Coleman [VoIP-PBX.ca]


---------------------------- Original Message ----------------------------
Subject: Re: [on-asterisk] Paging
From:    "Dave Donovan" <[EMAIL PROTECTED]>
Date:    Fri, May 12, 2006 4:26 pm
To:      [email protected]
--------------------------------------------------------------------------

I know this isn't really an answer to your question.  But External paging
systems are pretty affordable and they tie into Asterisk with either and
FXS or FSO interface.  I'm not sure if you're doing it for fun or for
profit but you might find less headaches with an external system.

One of the issues one customer had with a Nortel BCM, and I'm not sure if
this also applies to Asterisk systems is that the invites were sent
sequentially and so some phones would only catch the latter part of the
page.  It just took a few or several seconds to setup all the sessions to
50+ phones and the receptionist wasn't waiting that long.  I don't even
know if she got an indication that the channel was ready for her to page.


On 5/12/06, Tony Davis <[EMAIL PROTECTED]> wrote:
>
>  Anyone have any luck in setting up multi-device paging? I know it is
> dependent on the phone being used and I have quite a few that apparently
support it (SNOM 320, Polycom 601). I have tried some of the suggestions
on the wiki and boards without any luck.
>



-- 
David Donovan
Consultant
Fulcrum Solutions

I know this isn't really an answer to your question.  But External paging systems are pretty affordable and they tie into Asterisk with either and FXS or FSO interface.  I'm not sure if you're doing it for fun or for profit but you might find less headaches with an external system.

One of the issues one customer had with a Nortel BCM, and I'm not sure if this also applies to Asterisk systems is that the invites were sent sequentially and so some phones would only catch the latter part of the page.  It just took a few or several seconds to setup all the sessions to 50+ phones and the receptionist wasn't waiting that long.  I don't even know if she got an indication that the channel was ready for her to page.


On 5/12/06, Tony Davis <[EMAIL PROTECTED]> wrote:

Anyone have any luck in setting up multi-device paging? I know it is dependent on the phone being used and I have quite a few that apparently support it (SNOM 320, Polycom 601). I have tried some of the suggestions on the wiki and boards without any luck.




--
David Donovan
Consultant
Fulcrum Solutions

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