When I call outside, there's no call waiting tone

[highlander]

Hi,

I've call waiting enabled. If I have a call connected, I can hear the call waiting tone for each call coming in on my T29G.

If I'm placing a call, while I hear ringback on handset, and a second call comes in while the call is in progress, I don't have nothing displayed on phone screen and there's no call waiting tone.

To explain better:

- A calls B
- While B is ringing, A receives a call from C
- A does not have any tone to understand that C is calling and there's no message on phone display

Is there any setting to fix this issue?


Thanks