Disable call waiting

[Ectoplasmic]

I have Google Voice on SP1 and an IP phone on SP2 which uses GV. Nothing is connected to the analog port.

If I'm on a call with the IP phone, and another call comes in, I get the call waiting tones. I don't need or want this feature, I'd rather the other caller went straight to voicemail.

I tried setting this:
Physical Interfaces -> PHONE Port -> Calling Features -> CallWaitingEnable = unchecked

But that doesn't seem to do anything. I'm guessing the above is for the analog phone only. Is there a way to disable call waiting with my setup?

[Everton]

This is a long shot, but what would happen if you set:

Voice Services --> SP1 (and/or Sp2) Services --> MaxSessions =1

on either sp1 or sp2 or both?

[Stewart]

Your best bet is to turn off call waiting in the IP phone, if that's an available setting.  Otherwise, try setting SP1 Service -> MaxSessions to 1.  The latter method will unfortunately also prevent 3-way calling and call transfer from working.

[Ectoplasmic]

Thanks for the tips. I was going to try the MaxSessions route, but then I decided to take another look at the IP phone settings. There was no call waiting on/off option that I could find, but there was an option to set the call waiting tone. So I figured out how to make it silent, which was easier said than done, because just clearing the field resulted in a default beep.

So now if I'm in a conference, and someone calls, the phone gives a visible indication with caller id, but there is no noise added to the current call.

[Stewart]

If the phone is working properly, the call waiting beeps should play only in the earpiece and not go out on the line.  A possible exception is if you have it on speaker and not muted (beep gets picked up by mic and echo cancellation not perfect), but IMO you shouldn't participate in a conference that way.

I believe that you can disable call waiting by Phone tab -> CW Setting: no, though your silent CW scheme is better, since you still get the visible indication and could answer if the call was important enough.