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 From:  sai <sonicsai at gmail dot com>
 To:  Adrian Basescu <adrianeli at gmail dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] [Fwd: Cisco SIP phones]
 Date:  Thu, 12 May 2005 15:06:19 +0500
agreed - echo will not be caused by your network.


On 5/11/05, Adrian Basescu <adrianeli at gmail dot com> wrote:
> Hello,
> From my personal experience with SIP phones, but not Cisco, the traffic
> shaping may influence your voice quality, not echo.
> Echo should be canceled by the SIP phone, which usually has a configuration
> option to enable or disable echo cancellation.
> Heavy traffic may create drops in the voice link, a missed word or part of
> an word, or force the SIP phones to negociate a lower quality codec.
> --
> Adrian Basescu