Help! Nitsuko 96i, I need to set up a call divert to answerfone from main phone.

But i have no idea how to! - it's a customer's PABX, but there are no manuals onsite, and all we are trying to do is connect an analogue answerphone to it, is there a simple way to setup a call divert for all incoming calls to a different extension?

Thanks in advance!

I managed to configure a "call forward" to an analogue extension using the system telephone, and then plugged the answerfone into that, so problem solved.