We use cucm 9.1 here and I just changed the MOH the other day. These instructions may not be exactly for 8.6 but they should be close. The thing to remember is you should use restart and not reset when resetting the phones. I will mark it in the instructions where I am talking about resetting will kick everyone off of the phones even if they are in a call. Restarting will try to preserve the call and restart when the hang up.
Best if the file is a .wav file
Adding a audio file
Media resources | MOH Audio File Management Windows 7 usb 3.0 driver bootcamp.
Installing Cisco RTMT for CUCM 8.6 on Mac OS X This is a follow up to a blog entry I added a while back covering the installation of Cisco RTMT on Mac OS X. This original blog was just a quick blurb highlighting the work done by @ciscomonkey. May 16, 2013 Installing Cisco RTMT for CUCM 8.6 on Mac OS X This is a follow up to a blog entry I added a while back covering the installation of Cisco RTMT on Mac OS X. This original blog was just a quick blurb highlighting the work done by @ciscomonkey. 8.6 supports both VM and hardware installations. Bridged upgrade means your existing servers will not support your final version of CUCM. But what it will let you do is upgrade the software and create a backup of the desired version that you can restore to new hardware.
Upload file
Choose file. (Can be uploaded directly from the users PC that is logged into CUCM)
Adding the audio file to the audio source
Media resources | Music on Hold Audio Source
Select Add New
Select a MOH Audio Stream Number from the drop down
Select the Audio file within the MOH Audio Source File
Create a name for the file in the MOH Audio Source Name
Select save and the page should list the file status and should also populate the other audio files that are being used.
Adding the audio file to all phones
Bulk Administration | Phones | Update Phones | Query
Find Phones where (device name) (begins with)sepclick find
Click next in the upper left hand corner
Go to drop downs for
Voice Technology Support
User Hold MOH Audio Source
Network Hold MOH Audio Source
Select the audio file you want to use
Scroll to the bottom of the page Header on only range of pages microsoft word.
In the Job Information section ensure run later is selected
Select submit
Best to do want follows during a off hours.
Go to Bulk Administration | Job Scheduler
The job should be listed and under status it should be on hold.
When the time comes select the job then select (Activate Selected)
When the job says completed all of the phones need to be reset. May take a few minutes.
Go to Device | Phone
Find Phone where (device name) (begins with)sepclick find. (All phone names should start with sep. then followed by the mac address.)
Expand Rows per page to Max. (250)
Select all phones then select (Reset Selected) at the top of the page. (('Here is where you want to choose restart')).
Cisco Cucm 8.6 End Of Life
Scroll to the bottom of the page and select page 2 and repeat.
Hope this helps.