GAP compatible 5 max number of handset & 4 bases Conference call Call transfer Internal calls 50m indoor & 300 outdoor range Mono display type Backlit Contrast control Handsfree Headset socket Auto answer Secrecy Handset naming Keypad lock Power on/off Earpiece volume & handsfree volume control Call timer, clock, alarm Keypad confirmation tone, low battery indicator & alert. Out of range indicator & alert Base setting PIN protected 10 Handset polyphonic ringtones, 5 std handset tones, 5 base ringtones, base ringer off/on, base ringer volume control Caller groups 8 Quick dial memories 40 text message memory 12 hour talktime, 120 hours standby Answermachine: up to 27 minutes recording time Playback on handset & base 2 Outgoing messages Recordable out