Need help programing my speed dial on my work AT&T Merlin Bis-34!!!!?

I looked up a user guide online for it and it tells me to slide the t/p switch on the side of the phone to p (which im assuming stands for program) but when i do that all the lines blink i cant get a dial tone or get it to do anything. what do i do? am i missing something here. Link to what im looking at : http://support.avaya.com/edoc/docs/legend/leg2qr_1.pdf