*The Advanced Phone is FULLY COMPATIBLE with this model but is black in colour*

The Advanced Phone works perfectly with the Advanced Z, only difference being the colour. The Advanced Phone is black and is linked below in the Related Items section. 

BT Advanced Phone Z handset & charger - for use with the BT Advanced Phone, Advanced Phone Z and Advance Phone 1Z only. Up to 5 additional handsets (6 including the main handset) can be added to this system, giving the user the option to expand.

Comes complete with batteries, power supply and an instruction sheet to guide you through the registration process to link the handset to your existing main base.