We had the same thing with our Accuroute Fax server. We called TAC and it was the time out on the SIP trunk needed to be increased. As soon as we called in the TAC person had us fixed up in minutes.
I don’t know the exact thing that had to be changed; the guy that did the work is out this week. If you have 79XX phones, update the COP file for your phones, transfers while on a call with a head set are broken. Calls will just drop with a transfer…… Neal Haas From: cisco-voip [mailto:[email protected]] On Behalf Of Countryman, Edward Sent: Thursday, April 30, 2015 3:06 PM To: Cisco VOIP Subject: [cisco-voip] CUCM 10.5 and OpenText 10.6 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. This past weekend we updated to CUCM 10.5.2 and are no longer able to fax out from RF. From the trace, the SIP call appears to fail with the following error after the INVITE 488 Not Acceptable Here Do would anything have changed in 10.5 to possibly be causing this? Weird thing is the inbound faxes are working fine.
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