- Handset for the ATT-SB67118 and SB67138 - 1 to 4 line capability - DECT 6.0 Zero blind slot digital technology - Unsurpassed range - redefining long range coverage and clarity - Push-to-talk intercom - from base to handset and from handset to handset - Expandable system (use up to 10 cordless handsets through a single phone jack) - Intercom and call transfer between handsets and base station - 10 Speed dial and 10 intercom number locations - 3 Party conferencing - Handset speakerphone - Selectable ringtones - Handset speakerphone headset and ringer volume control - Last 10 number redial - 100 Name/number phonebook directory - Blue backlit keypad and display - Mute - Hold - Chain dialing - Headset compatible (2.5mm jack) - Caller ID/ Call waiting features - Caller ID displays on the handset and base - 50 Name/number caller ID history - Replacement Battery: BATT-27910