<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">That is probably dependent on who sends the OLC first and what that party prefers vs the other one. <div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div>-Ryan</div></span>
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<br><div><div>On Oct 29, 2009, at 3:52 PM, Oleg Skomorokhov wrote:</div><br class="Apple-interchange-newline">I've made sort of a test few minutes ago. I've unregistered the e1 pri (mgcp) from CUCM and configured it with voip dial peer ( session target to CUCM, added a h323 gateway instead mgcp gateway).<div><br></div><div>
If i enable that dial-peer to use a voice-class codec with following preferences:</div><div><br></div><div>1 g711alaw</div><div>2 g711ulaw</div><div>3 g729r8</div><div><br></div><div>The negotiated codec will be g711 U-LAW (funny).</div>
<div><br></div><div>If i enable the dial-peer to use only the g711alaw codec, it will be negotiated (sh voice call status shows me that).</div><div><br></div><div><br><br><div class="gmail_quote">On Thu, Oct 29, 2009 at 10:36 PM, Ryan Ratliff <span dir="ltr"><<a href="mailto:rratliff@cisco.com">rratliff@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word">Correct, there is no way to change that preference. We have a knob for turning off g.722 but that's it.<div>
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<span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>
-Ryan</div></span>
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<br><div><div>On Oct 29, 2009, at 3:34 PM, Oleg Skomorokhov wrote:</div><br>And looks like there's no way to reorder that preference. <div>Well, thanks anyway.<br><br><div class="gmail_quote">On Thu, Oct 29, 2009 at 10:08 PM, Ryan Ratliff <span dir="ltr"><<a href="mailto:rratliff@cisco.com" target="_blank">rratliff@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Not that I can tell. CUCM makes no distinction between a-law and u-law for g.711. The only reason a phone would use one vs the other is if the device the phone was talking to only advertised one and not the other. Internally to CUCM there is a preference among codecs that use the same bandwidth. For the 64kbps codecs this preference is g.722, g.711u, g.711a.<div>
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<span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>
-Ryan</div></span>
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<br><div><div>On Oct 29, 2009, at 2:59 PM, Oleg Skomorokhov wrote:</div><br>it's set to a-law, but no luck.<div><br></div><div>but forget the pri, is there a way to get intracluster calls negotiate 711 a-law ? i mean between 2 nearby ip phones.<br>
<br><div class="gmail_quote">On Thu, Oct 29, 2009 at 9:41 PM, Ryan Ratliff <span dir="ltr"><<a href="mailto:rratliff@cisco.com" target="_blank">rratliff@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">What is set for the PCM Type in the CCMAdmin web page for the PRI?<div><br></div><div>
That's the only place I can see where you can set a-law vs u-law.</div><div><br><font color="#888888"><div>
<span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>
-Ryan</div></span>
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<br><div><div>On Oct 29, 2009, at 2:36 PM, Oleg Skomorokhov wrote:</div><br><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse">There are some problems when talking with TELCO's support. some cracking and knocking sounds. No slips or other errors on E1 present. <div>
<br></div><div>But mostly, it's just annoying me. Why should i use u-law in europe, if it was designed for US? </div><div><br></div><div>So, even if we forget the E1 PRI, how to make the INTRAcluster calls to negotiate g711 A-law codec?..</div>
</span><br><div class="gmail_quote">On Thu, Oct 29, 2009 at 9:31 PM, Ryan Ratliff <span dir="ltr"><<a href="mailto:rratliff@cisco.com" target="_blank">rratliff@cisco.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">The compand type on your POTS leg has nothing to do with the codec or compand type on the voip leg.<div><br></div><div>Is this causing any problems or just something you noticed?</div><div>
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<span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>
-Ryan</div></span>
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<br><div><div><div></div><div><div>On Oct 29, 2009, at 2:20 PM, Oleg Skomorokhov wrote:</div><br><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse"><div>Hello all.</div><div> </div>
<div>I've got a e1 pri line in my office, terminating by cisco 2821. The compand type for E1 (Europe) is A-law, and show voice port 0/0/0:15 also tells me that.</div>
<div>E1 is registered via mgcp, and i also see the compand type A-law in options there.</div><div> </div><div>When i press the question button twice during the pstn call, the negotiated codec is u-law.</div><div> </div><div>
The default codec in Region is "G711" (no option for a-law or u-law)</div><div> </div><div>Is there such an option in CUCM to change the default modulation type for g711 codec?</div><div> </div><div>Thank you.</div>
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