I am running CUCM 11.5.1.17900-52, and I am having troubles with the custom background files being served from the tftp server.  I have uploaded all the same files to all three nodes of the cluster.  When the phone attempts to retrieve t...

Hello,  I am having problems getting 7975's to send DTMF across a SIP trunk.  Other phones such as my 8865 can complete this with out issue.  The SIP trunk in question is linked to another vendor PBX. I have attempted to use a MTP, but no change in s...