<html><body bgcolor="#FFFFFF"><div>I think this is an AT&T limitation or as you just mention they want to save bw. I havent work with them on sip trunks however L3, verizon and other ITSP's support both codecs.<br><br>Enviado desde mi iPhone</div><div><br>El Sep 25, 2011, a las 11:21, Bill Simon <<a href="mailto:bills@psu.edu">bills@psu.edu</a>> escribió:<br><br></div><div></div><blockquote type="cite"><div>
Someone please explain why the codec needs to change from G.711u to
G.729 simply because of a transition from PRI to SIP?<br>
<br>
Does AT&T's SIP service not support G.711? Or are you simply
trying to squeeze more channels onto limited bandwidth? (Get more
bandwidth.)<br>
<br>
<br>
On 9/24/11 12:38 PM, Jason Aarons (AM) wrote:
<blockquote cite="mid:4E38DB0A1959B04C8C83EDCF069B53ED0D0E9D7C58@USISPCLEXDB01.na.didata.local" type="cite">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The
larger you are the more advantages. For small business I
agree sticking with PRI since you can get them dirt cheap.
For example bank with 700 branches can see a 14 month ROI
versus fractional PRIs across all those sites, more mpls
bandwidth to branch for video/digital signage, fewer
hardware costs, etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Lelio Fulgenzi [<a class="moz-txt-link-freetext" href="mailto:lelio@uoguelph.ca"><a href="mailto:lelio@uoguelph.ca">mailto:lelio@uoguelph.ca</a></a>] <br>
<b>Sent:</b> Saturday, September 24, 2011 11:53 AM<br>
<b>To:</b> Jason Aarons (AM)<br>
<b>Cc:</b> Haas, Neal; <a class="moz-txt-link-abbreviated" href="mailto:cisco-voip@puck.nether.net"><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a></a><br>
<b>Subject:</b> Re: [cisco-voip] Moving to SIP<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Anyone else have the feeling SIP isn't
all it's cracked up to be? In our case, if you're not
already getting Internet service from your your SIP
provider, it's just not that economical. Especially if you
have to keep a PRI around for faxing, modems, alarms, etc. <br>
<br>
Sent from my iPhone<o:p></o:p></p>
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On Sep 24, 2011, at 10:51 AM, "Jason Aarons (AM)" <<a moz-do-not-send="true" href="mailto:jason.aarons@dimensiondata.com"><a href="mailto:jason.aarons@dimensiondata.com">jason.aarons@dimensiondata.com</a></a>>
wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">Yes faxing/modem/postage won’t
work. Look into separate device pools for g711 stuff,
etc.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a moz-do-not-send="true" href="mailto:cisco-voip-bounces@puck.nether.net"><a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a></a>
<a moz-do-not-send="true" href="mailto:[mailto:cisco-voip-bounces@puck.nether.net]">[mailto:cisco-voip-bounces@puck.nether.net]</a>
<b>On Behalf Of </b>Haas, Neal<br>
<b>Sent:</b> Friday, September 23, 2011 6:27 PM<br>
<b>To:</b> <a moz-do-not-send="true" href="mailto:cisco-voip@puck.nether.net"><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a></a><br>
<b>Subject:</b> [cisco-voip] Moving to SIP</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">We
are moving to (ATT) SIP from standard PRI’s, of course
we just realized that our unity is G711. <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Are
there any gotchas by just changing the General
Configuration to G729a?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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