When you try to upload the Music on Hold (MoH) wav file through the Cisco CallManager Adminstration page > Media Resource > MOH Audio file Management, and upload a file that is 37 MB in size , it is unable to upload the file and shows this error message:
unmapped Exception the Entity name must immediately follow the '&' in the entity reference.HTTP 500 No space left on Device.
When you attempt to create a remote support user under the Cisco CallManager OS administration page, it shows the Error : HTTP Status 500 - Type Exception report. Description : The server encountered an internal error () that prevented it from fulfilling this request error message.
This issue is documented in Cisco bug ID CSCsh57225. One possible workaround for this issue is mentioned in these steps:
Create a wav file 16-bit PCM with same exact name as the original bad wav file. If desired, you can copy or rename a known good MoH wav file as same name as the bad file.
Choose MOH Audio Source web admin and import this replacement as the good wav file.
This should remove the & problem and create a good xml file.
These previously mentioned steps should resolve the issue with MoH.
This issue is also resolved if you install the engineering specials on the Cisco CallManager versions installed. It is fixed in these verions:
Open a case with Cisco Technical Support with the TAC Service Request Tool in order to obtain an appropriate Enterprise Special patch.