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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>To build on what Ed has already added. When you talk with your
SIP provider, ask them what type of authentication they are expecting. Some
providers will do source IP with no authentication, others support a username
and password on dial-peers, and others require the hidden ‘credential username password
realm’ under sip-ua. Try running ‘show sip-ua reg stat’ and see what shows as
registered. A lot of providers won’t like the extra registrations that CME / voice
gateways send, so if you see 1 registration with a yes and a bunch that say no,
you can trim all those down with ‘no sip-register’ under each of the offending
dial-peers.<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'>-ryan<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"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Ed Leatherman<br>
<b>Sent:</b> Monday, October 13, 2008 8:37 AM<br>
<b>To:</b> Drew Weaver<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Very new to cisco VoIP products have a few
questions/problem.<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 style='margin-bottom:12.0pt'>Sounds like the SIP messages
are going back and forth OK but your audio stream isn't. Perhaps ACL or
firewall causing the problem? <br>
<br>
We've got a UC520 setup at a small office across town, but no SIP trunk so i'm
not sure what exactly would be the cause.<br>
<br>
CME is running as part of the IOS on the box, if it weren't running your phones
wouldn't work at all. I would double check the dialpeers that CCA generated for
you. From my limited experience CCA was OK for a basic configuration but as
soon as we had to setup something special I got fed up with it and just started
using the CLI instead.<br>
<br>
Barring that you might want to check with your SIP provider to see if they can
help with the outbound call problems.. maybe the call is getting rejected by
them?<br>
<br>
Ed<o:p></o:p></p>
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<p class=MsoNormal>On Sun, Oct 12, 2008 at 9:04 PM, Drew Weaver <<a
href="mailto:drew.weaver@thenap.com">drew.weaver@thenap.com</a>> wrote:<o:p></o:p></p>
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<p>
Hi there,<o:p></o:p></p>
<p> <o:p></o:p></p>
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<p class=MsoNormal><br>
-- <br>
Ed Leatherman<br>
Assistant Director, Voice Services<br>
West Virginia University<br>
Telecommunications and Network Operations<o:p></o:p></p>
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