User`s manual

G.723.1. If the version is 2sipfxso723.100, SP5014/S doesn’t have
the codec G.729 series.
(2) For SP5012/S, the Application rom has the only one version
which is named sipfxso.100 provide all codec.
-volume There are three adjustable value. voice volume stands for
volume, which can be heard from Gateway side; input gain
stands for volume, which the opposite party hears; dtmf
volume stands for DTMF volume/level, which sends to its own
Line.
Note: level of volume is 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:
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usr/config$ voice -nscng g723 1
-echo activate each canceller (1 = ON; 0 = OFF).
-mindelay the minimum jitter buffer size. (Default value= 90 ms)
-maxdelay the maximum jitter buffer size. (Default value= 150 ms)
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usr/config$ voice –mindelay 90 –maxdelay 150
Note: be sure to know well the application before you change voice
parameters because this might cause incompatibility.
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5.18 [phone]
Gateway’s progress tone is configurable. Default tone value is set
according to U.S. tone specification. Users may adjust the values
according to their own country’s tone specification or users-defined tone
specification.
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