Panasonic Advanced Hybrid System Panasonic Advanced Hybrid W/KX-T7736 Extension Numbers?

Panasonic advanced hybrid w/KX-T7736 extension numbers? - panasonic advanced hybrid system

Not able to find a manual to tell me what extension of the standard numbers for the Panasonic Advanced Hybrid System ..... KX-T7736 telephones, with the screen ... no help, what position numbers by default, or how you say what the extent of any telephone help .. thanks ..