MicroNet Technology SP5001/S user manual Parameters because this might cause incompatibility

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.

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