FXO H.323 Gateway User Manual
Document Ver.: 118a
Release Sep, 2004
85
G.729B
G.729AB
G.711U
G.711A
-volume Specify the following levels:
voice volume (0~63, default: 30),
input gain (0~63, default: 30),
dtmf volume (0~31, default: 23),
-nscng No sound compression and CNG (G.723.1 only, 0=Off, 1=On).
-echo Setting of echo canceller. (0=Off, 1=On, per port basis).
-mindelay Setting of jitter buffer min delay. (0~150, default: 90).
-maxdelay Setting of jitter buffer max delay. (0~150, default: 150).
Example:
voice -send g723 60 g729 60 g729a 60 g729b 60 g729ab 60 g711u 60 g711a 60
voice -volume 1 voice 20 input 32 dtmf 27
voice -echo 1 1 1 1
usr/config$
Parameters Usage:
print current voice information and configurations.
-send
define packet size for each codec. 20/40/60ms means to
send a voice packet per 20/40/60 milliseconds. The smaller
the packet size, the shorter the delay time. If network is in
good condition, smaller sending packet size is recommended.
In this parameter, 20/40/60ms is applicable to G.711u/a law,
and G.729/G.729A/G.729B/G.729AB codec, while 30/60ms is
applicable to G.723.1 codec.
-priority
codec priority while negotiating with other h323 device. This
parameter determines the listed sequence in h.245 TCS
message. The codec listed in left side has the highest priority
when both parties determining final codec. User can also
select the particular codec without others.
usr/config$ voice –priority g723 (only select this codec)
usr/config$ voice –priority g723 g729 g711u g711a (select four codecs,
and g723 is the first choice)usr/config$ line –config 1 hotline 1001
