Need to disable call waiting beep 7905

[keat63]

Guys.
I'm very new to CallManager. I'd like to disable the call waiting tone from 7905 telsets, but leave the call waiting feature intact. Users are moaning about the disturbing beep when they are in mid conversation.
Could someone explain, step by step how to issue the CME command
I'm on V4.1.3 SR5

 

[whykap]

CME or CUCM?
4.1.3 is a cucm version not express.

 

[keat63]

I spent about 3 hours on google and the only thing I could find was reference to cme commands so presumed this was the way to go. I've since been informed that it's a configurable item in services, callmanager services which I wasn't aware existed. I've now applied the change to flash only and everyone is happy.