Panasonic KX-TG6502B 5.8 GHz DSS Expandable 2-Line Cordless Phone with Dual Handsets (Black) 5.8 GHz digital spread spectrum signal Expandable to 4 handsets, 2 included, with integrated speakerphones 60-minute integrated digital answering system; 4 ring tones Caller ID/wall waiting with 50-call memory Supports 2 lines; flash, redial, hold functions