I am attempting to remove the incoming call beep (single beep) that occurs when someone is on the phone and another incoming call appears.
I had a look at the DND settings of the device profile and managed to remove the beeping sound. However, it also turned off all sound to the phone which wasn't ideal.
I noticed from another post on here that changing the service parameter 'ToneOnCallForward' to false would remove the incoming beeping sound on an IP Phone expansion module which is exactly what I'm trying to achieve. Unfortunately, I cannot find this service parameter on the CUCM version i'm using which is 7.1(3) SU2.