Mountain Bell DECT 6.0 GAP compatible50 Phone book directoryMulti-language (English, French, Spanish)Multi-handset option (5 handsets)LCD display with backlight9 Handset ring tone selectionHands free speakerphoneKey lockTone/pulse dialing selectionLast number redialHandset volume (5 levels)Pre-dialing functionBattery level icon indicationMute keyHearing aid compatibleIntercom call (HS to HS)Call transfer (extension to HS)Three party conference call50 Number caller ID memoryName and phone number displayPhone book matchingCall back callersCall log reviewSave caller's number to phonebookDelete selected entry listCall timerMessage waiting indicationNew message indicationUnread message indicationTime and date stampingNWBMB312321