T28 call waiting notify

[keepittidy]

(10-20-2015 01:30 PM)Yealink_James Wrote:  For internal calls(extension to extension), BLF can be used to monitor the status of callee.

For external calls, there is no a good method to know the status of other side. The ohter side should tell the status firstly.

Thanks James,

My situation is for internal to internal (extension to extension) but i don't think BLF will work for my situation. What i need is for example:

a) Extension 100 calls extension 200
b) 200 is on a call already
c) I would like an indication that ext 200 is on the call rather than it just ringing and me assuming they are not in.

I know i could setup BLF between the 2 extensions but i would like this to work if i called ANY extension in the building, so too many to setup BLF.

I expected something like a different ringtone in my ear or a message on screen to say i am "call waiting" and the other person is talking to someone already.

Thanks again

Richard