Features:
. customizable faceplate;
. +3,+5,+10 speed dial buttons (can be customized)
. Message waiting light key,press for message,compatible with all brands telephone PBX;
. Auto hung up;
. Music on hold;
. Speaker,Redial,Auto redial cancel,Flash;
. Storage number length for 32, store content never lost;
. Speaker volume 3 levels adjustable,ring volume 2 levels adjustable;
. Thunder-proof and Anti_EMI design;
. Waterproof and moistureproof.