How do I transfer an incoming call ?

It's usually just the same as making an internal call from one handset to another - you take the incoming call - go through the internal call process - talk to the other internal user and hang up - the other user is then connected to the external party.

Pressing all the buttons as you mention will probably not work - they have to be pressed in a certain order.

Good luck...

Peccavi
January 2010