I have noticed the "call-waiting ring" command doesn't actually play any ring on 6921 phones. I have found following two bugs matching my problem description but both of them are in terminated state.
CSCtu36295 Call waiting ring CLI is not working for the 69xx Series phones
CSCtg48007 69xx phones do not honor ring active setting if set to Ring/Ring Once
CME version: 9.0
Phone firmware version:SCCP 188.8.131.52
Following is the phone configuration:
ephone 1button1:1 2:2type 6921max-calls-per-button 2
ephone-dn 1 dual-linenumber 111call-waiting ringhuntstop channelcall-forward busy 222!ephone-dn 2 dual-linenumber 222call-waiting ring!
I would appreciate if someone can shed some light on my issue and possible resolution.
thanks in advance,
FYI. Upgrading the firmware to 9.2.1 resolved my issue and we could hear ring on call-waiting ring however that brought the paging down (CSCtw85011).
Finally, we went to 9.2.4. Both the paging and call-waiting ring has been resolved in 9.2.4.
I am on CME 9.0 and 9.2.4 is not yet documented as supported however so far, everything seems to be working fine.