<div dir="ltr">Definitely at least need the "debug ccsip messages" for one of the calls.  We'll need to see if AT&T is sending a 180 Ringing or if they're sending a 183 Session Progress w/ SDP to play the ringback inband.  If they're sending a 183 Session Progress, make sure the SIP Profile on the SIP Trunk has the Rel1XX Options set to Send Prack if 18X contains SDP.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jun 3, 2014 at 12:43 PM, Matthew Loraditch <span dir="ltr"><<a href="mailto:MLoraditch@heliontechnologies.com" target="_blank">MLoraditch@heliontechnologies.com</a>></span> wrote:<br>
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<p class="MsoNormal">We are having a regular but not always issue with a client, where they are not hearing the ringing when dialing outbound on calls. These are SCCP 6945s to UCM 9.1.2 SIP Trunked to CUBE and then handoff to at&t’s ipFlex service.<u></u><u></u></p>

<p class="MsoNormal">If anyone has some suggestions to look at before I spend time with TAC it would be appreciated!<u></u><u></u></p>
<p class="MsoNormal">Thanks!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA<u></u><u></u></p>
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