<html dir="ltr"><head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<meta name="GENERATOR" content="MSHTML 9.00.8112.16457">
<style id="owaTempEditStyle"></style><style title="owaParaStyle"><!--P {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
--></style>
</head>
<body ocsi="x">
<div style="FONT-FAMILY: Tahoma; DIRECTION: ltr; COLOR: #000000; FONT-SIZE: x-small">
<div>Thanks Ryan.</div>
<div><font face="tahoma"></font> </div>
<div><font face="tahoma">That's also a good point about annex b, hopefully I can convince others on the team as well to give up VAD :)</font></div>
<div><font face="tahoma"></font> </div>
<div><font face="tahoma">Cheers,</font></div>
<div><font face="tahoma"> Zoltan</font></div>
<div dir="ltr"><font color="#000000" size="2" face="Tahoma"></font> </div>
<div style="DIRECTION: ltr" id="divRpF865876">
<hr tabindex="-1">
<font color="#000000" size="2" face="Tahoma"><b>From:</b> Ryan Ratliff [rratliff@cisco.com]<br>
<b>Sent:</b> Monday, January 28, 2013 5:54 PM<br>
<b>To:</b> Kelemen, Zoltan [CORP/RO]<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] g729 gateway / transcoding?<br>
</font><br>
</div>
<div></div>
<div>You would only need transcoding if you have call flows that could connect this gateway to a device across the wan that doesn't support g729. In that case if you still want to have g729 go across the wan you'd need to be transcoding to 711 at the central
site, not at the remote site gateway.
<div><br>
</div>
<div>As far as the dial-peer goes I'd recommend a codec class with all the variants of 729 (that don't have 'b' in them) to prevent potential failures because of variations in codec support across your devices or other gateways. You don't want to use g729b
because it includes voice activity detection (vad) and will cause even poorer voice quality than you'll be getting with 729.</div>
<div><br>
<div><span class="Apple-style-span">-Ryan</span> </div>
<br>
<div>
<div>On Jan 28, 2013, at 4:43 AM, <a href="mailto:Zoltan.Kelemen@emerson.com">Zoltan.Kelemen@emerson.com</a> wrote:</div>
<br class="Apple-interchange-newline">
<div lang="EN-US">
<div class="WordSection1">
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
Hi,</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
This may be a very basic question, but I’m looking for a straight forward answer, and so far couldn’t find anything.</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
I have a remote voice gateway, with an E1 card connecting to a PBX on one end and SIP trunk towards the WAN on the other.</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
On the WAN I’d like to have g729.</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
The router has a PVDM3-64 inside.</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
Do I need to set up transcoding as well, or is it enough to specify</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
codec g729br8</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
on the voip dial-peer?</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
Thanks,</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
<b><span style="FONT-FAMILY: Arial,sans-serif; COLOR: rgb(15,36,95)">Zoltan Kelemen</span></b><b><span style="FONT-FAMILY: Arial,sans-serif; COLOR: rgb(15,36,95); FONT-SIZE: 10pt"><br>
</span></b><span style="FONT-FAMILY: Arial,sans-serif; COLOR: rgb(102,102,102); FONT-SIZE: 10pt">Emerson</span><span style="COLOR: rgb(31,73,125)"></span></div>
<div style="MARGIN: 0in 0in 0pt; FONT-FAMILY: Calibri,sans-serif; FONT-SIZE: 11pt">
</div>
</div>
_______________________________________________<br>
cisco-voip mailing list<br>
<a style="COLOR: purple; TEXT-DECORATION: underline" href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a style="COLOR: purple; TEXT-DECORATION: underline" href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
</div>
</div>
<br>
</div>
</div>
</div>
</body>
</html>