Paul Lambert wrote:
"Not yet." implies that it is coming.
Look at the latency it causes, and you will see its not that useful.
I know it would help on Internet
connections such as fixed wireless and cable modem where packet rate is
an issue. 20ms translates to 50 packets/sec.
30ms per block codec aren't bad. Going beyond that gets nasty. 2 x 20ms
blocks per packet about the most people will tolerate.
I believe cable modem
upstream packet rates cap at 150-200 packets/sec. G729 gets the bit rate
down to 8kbits.
G.729 gets the rate down to 8kbps. Then RTP puts it back up to several
times that.
So based on a bit rate of 256K the theory is that the
link could handle 32 calls. But, that would produce packets coming out
at a rate of 1600 packets/sec beyond the limitation of most Internet
connections including a T1.
A T1 has no particular packet limit. It is just limited to 1544kbps.
Some routers choke on large numbers of small packets, but that is not a
T1 problem.
Regards,
Steve
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