What is NB?<br><br><div class="gmail_quote">On Sun, Dec 19, 2010 at 11:00 AM, joy this <span dir="ltr">&lt;<a href="mailto:thisjoy0528@gmail.com">thisjoy0528@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Could you give me any suggestions?<br><p class="MsoNormal" style="text-align:right" align="right"><span lang="EN-US">Sincerely yours,</span></p>

<div style="text-align:right"><span style="font-size:12pt;font-family:&quot;Times New Roman&quot;" lang="EN-US">Thisjoy.</span></div><div class="gmail_quote">2010/12/17 joy this <span dir="ltr">&lt;<a href="mailto:thisjoy0528@gmail.com" target="_blank">thisjoy0528@gmail.com</a>&gt;</span><br>

<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">

<p class="MsoNormal"><span lang="EN-US">Dear all:</span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p>

<p class="MsoNormal"><span lang="EN-US"><span>        </span>I
have questions about VAD and echo cancellation. My FS is Version 1.0.head
(git-) under Windows XP. My soft-phone is X-Lite. I use earphones and microphones
for sip 1 which means the talking and hearing are separated; on the other hand,
I use NB for sip 2 which makes the talking and hearing in the same place. Sip 1
(1000) calls sip 2 (1001) via FS. When I say something via sip 1, the echo will
occur, and the echo will only occur on sip 1.</span></p>

<p class="MsoNormal"><span lang="EN-US"><span>        </span>How
do I cancel the echo? Buy a hardware card or something else? I have two
gateways which are Wellgate2644 and ata171m. Please give me some suggestions.</span></p>

<p class="MsoNormal"><span lang="EN-US"><span>        </span>When
I enabled VAD, I found something strange. In the start of the session, I can
hear the noise and echo on sip 1. If I say something via sip 2, the echo and
the noise will disappear. Then the echo will not occur on sip 1 only in a short
time, about several seconds. The echo and the noise will occur gradually if I
say something via sip1. Is it a normal situation?</span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p>

<p class="MsoNormal" style="text-align:right" align="right"><span lang="EN-US">Sincerely yours,</span></p>

<div style="text-align:right"><span style="font-size:12pt;font-family:&quot;Times New Roman&quot;" lang="EN-US">Thisjoy.</span></div>
</blockquote></div><br>
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