MicroNet Technology SP5001/S - Manual (Page 80)

79
parameter, 20/40/60ms is applicable to G.711u/a law, and G.729
codec, while 30/60ms is applicable to G.723.1 codec.
-priority codec priority while negotiating with other SIP device. This
parameter determines the listed sequence in the media header
of SDP body of SIP INVITE 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$ 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)
-volume There are three adjustable values. Voice volume stands for
volume, which can be heard by local side; input gain stands for
volume, which the opposite party hears. dtmf volume stands for
DTMF volume/level, which sends to its own Line1.
Note: Level of volume too high or too low may be result in bad
performance while connecting to each other.
-nscng silence suppression and comfort noise generation setting (1 =
ON; 0 = OFF). It is applicable to G.723 codec only. An example
is demonstrated below:
usr/config$ voice -nscng g723 1
-mindelay the minimum jitter buffer size. (Default value= 90 ms)
-maxdelay the maximum jitter buffer size. (Default value= 150 ms)
usr/config$ voice – mindelay 90 – maxdelay 150 -optfacor 7
-echo activate each canceller (1 = ON; 0 = OFF).
-optfactor optimized factor. (Default value= 7).
An example is demonstrated below:
usr/config$ voice – mindelay 90 – maxdelay 150 -optfacor 7
Note: be sure to know well the application before you change voice
parameters because this might cause incompatibility.