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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We have had right fax 10.5 up and running with a SIP trunk from our CUCM 8.6.2 environment for a while now.<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">This past weekend we updated to CUCM 10.5.2 and are no longer able to fax out from RF.<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">From the trace, the SIP call appears to fail with the following error after the INVITE<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN">488 Not Acceptable Here<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do would anything have changed in 10.5 to possibly be causing this? Weird thing is the inbound faxes are working fine.<o:p></o:p></span></p>
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