[Asterisk-Users] Can I use Asterisk for a modified Hoot and Holler?

2005-04-18 Thread Machen, Matthew T.
Hello wonderful asterisk users list.  

I have some energy traders that are currently using 2 wire
hoot-n-hollers (squawk box, always open direct line) to different
trading floors throughout the country.  Each box has one hoot-n-holler
line.  I would like to make these boxes IP based by connecting the 4
lines to a TDM400 with 4 fxo modules, providing SIP or IAX extensions
for each hoot line and giving my clients a softclient on their desktop.
Will it work?  Is it reliable?  Is it the best way?

Thanks in advance for you Asterisk wisdom on this little problem of
mine.

Matthew Machen
Southern Company Network Support

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Re: [Asterisk-Users] Can I use Asterisk for a modified Hoot and Holler?

2005-04-18 Thread BJ Weschke
 What is it you're trying to accomplish? 

 Squawk Box--fxo---*--IAX2/SIP clients?

 or
 
 replace the 2 wire solution between the different locations with IAX2/SIP?

 The only thing I'd caution you about hear is as you're going back and
forth between 2 wire and IAX2/SIP along with conferencing/meetme in a
hoot/holler application be real careful that you've worked all the
kinks out with echo cancelation. Some echo thrown back into
conference, as you probably already know, could get real ugly real
quick.


On 4/18/05, Machen, Matthew T. [EMAIL PROTECTED] wrote:
 Hello wonderful asterisk users list.
 
 I have some energy traders that are currently using 2 wire
 hoot-n-hollers (squawk box, always open direct line) to different
 trading floors throughout the country.  Each box has one hoot-n-holler
 line.  I would like to make these boxes IP based by connecting the 4
 lines to a TDM400 with 4 fxo modules, providing SIP or IAX extensions
 for each hoot line and giving my clients a softclient on their desktop.
 Will it work?  Is it reliable?  Is it the best way?
 
 Thanks in advance for you Asterisk wisdom on this little problem of
 mine.
 
 Matthew Machen
 Southern Company Network Support
 
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Re: [Asterisk-Users] Can I use Asterisk for a modified Hoot and Holler?

2005-04-18 Thread Rich Adamson
 Hello wonderful asterisk users list.  
 
 I have some energy traders that are currently using 2 wire
 hoot-n-hollers (squawk box, always open direct line) to different
 trading floors throughout the country.  Each box has one hoot-n-holler
 line.  I would like to make these boxes IP based by connecting the 4
 lines to a TDM400 with 4 fxo modules, providing SIP or IAX extensions
 for each hoot line and giving my clients a softclient on their desktop.
 Will it work?  Is it reliable?  Is it the best way?
 
The probability of making that work with a TDM card is rather low.

The primary reason is the TDM card (and drivers) are oriented around
ringing come in, some action performed (eg, dialplan), and aswering
the call. Hoot-n-holler circuits don't have those same functions.

In most cases that I'm familiar with, the actual circuit used for
these is four-wire (not 2-wire) and the TDM does not have a four-wire
interface.

Could someone modify the drivers to do that? High probability, but 
that isn't going to be an easy task for the uninitiated.


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