Subject: [Megaco] Question on echo control direction

From: "Soncodi, Adrian" <[email-masked]>
Date: Wed, 17 Mar 2004 17:50:34 -0600

Hi,

When an MCG turns on echo control for a TDM termination on the MG, which one of the following audio streams becomes "clean" of echo:
a) The stream from the termination outwards to the TDM facility, or
b) The stream from the termination inwards into the context (presumably going out on another facility associated with another termination in the context)
(I am assuming that only a half-echo canceller is inserted, because most of the MGs can only do that. The other half would be on the other termination.)

Where is this specified? the TDM package in H.248 annex E does not say.

Thanks,

Adrian

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