On Wed, 14 Sep 2005, Mauricio Jancic wrote:

> What about the Microchip TCP/IP stack plus a compression codec plus a
> ENC28J60 or any ethernet chip?
>
> do you thik it would work?
             ^n

If you have enough bandwidth for u-law you do not need compression. 
u-law needs 8 kByes/sec in each direction with *low* latency. The 
simpler the circuit and the software the better. There is no reason why 
it would not work. Probably in a dsPIC with a/d so a little audio 
filtering can be performed. The easiest protocol to implement is 
probably IAX2 (Asterisk's native protocol). TCP is not required, UDP is 
enough. The other protocols seem to have been designed by commitee (H323 
for sure, SIP comes close). IAX2 *works* _*NOW*_.

Peter
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