silenceSuppression in h2250LogicalChannelParameters

[Paul Long]

Frank,

I assume it indicates that the lack of packets on that stream may indeed
indicate silence and not necessarilly network congestion or a loss of the
audio signal. This is particularly for encodings that do not support silence
suppression, e.g., G.711, or for implementations that do not implement the
silence-suppression feature defined for the encoding, e.g., NetMeeting's
G.723.1 implementation. You are correcct, though, that it is redundant for
codecs that signal silence suppression in their caps, e.g., G.723.1. Again,
I don't know the original rationale; this is just my best guess.

Paul Long
ipDialog, Inc.

-----Original Message-----
From: Mailing list for parties associated with ITU-T Study Group 16
[mailto:ITU-SG16 at mailbag.cps.INTEL.COM]On Behalf Of Frank Derks
Sent: Wednesday, April 25, 2001 4:34 AM
To: ITU-SG16 at mailbag.cps.INTEL.COM
Subject: silenceSuppression in h2250LogicalChannelParameters


Can any one explain what the meaning of the silenceSuppression element
in h2250LogicalChannelParameters is? If set to TRUE, does this indicate
that silence suppression is supported on the channel, but that this is
actually dependent on the support of this functionality by the codec? So
why duplicate the information?

Regards,

Frank

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