[Asterisk-Users] Busy recognition

[Ronald]

Hi

I'm not sure if I can ask it here or on Dev. But the following

I'm trying to make a webinterface for calling/hanging up/transfer.
Thats all going very well.

But I'm wondering about the following. I'm trying to catch a busy 
call from the CLI or the manager.
If I call someone and it takes to long I see busy passing by
And I want to pick that up and put that on a webpage. and give the
option to redial/call another or hangup

Can anyone help me with that

Thanks

Ronald