[VoIP] More "Authentic" CNET

[David Josephson]

>> existed as a hierarchy of tandem switches. Placing a call meant
>> connecting through multiple switches and trunks to reach your
>> destination.
>>     
Not necessarily. The critical part of a network is efficient network 
design -- that Greg's adaptation of DNS to be an ENUM server does 
elegantly. You design a network according to the costs and benefits at 
hand -- and we don't pay more for a long distance connection through the 
public internet than we do for a short one, so there's no point in 
tandeming through a bunch of switches just to make the
>> What about the possibility of using a computer's sound card as a 4
>> wire trunk? Audio could be passed using a simple streaming audio
>> application (something like IHU - ihu.sourceforge.net). Answer
>>     
It sounds like you want to reinvent Asterisk. We have drivers for sound 
cards to do just that, using the g.711 or other coding schemes built in 
to Asterisk.
>> supervision/dial pulsing could either be passed as out of band "DC"
>> signals created or received by extra hardware plugged into the
>> server, or as in band SF tones with detection either handled in
>> hardware or software. The interface between sound card and switch
>> could be executed using something like a Zarlink SLIC or COIC to do 2-
>> wire to 4-wire conversion, and handle signaling.
>>     
Yes, we have that. What's the purpose?

David