EL51109 DECT6.0 Call-Waiting Caller ID Handset Speakerphone EL51109 DECT6.0 Call-Waiting Caller ID Handset Speakerphone. Comes with: Base Unit. Cordless Handset. Battery Pack. AC Adapter. Telephone Line Cable. Printed Materials. DECT6.0 Digital Technology. Handset Speakerphone. ? Intercom Between Handsets. ? Intercom Call Transfer. Conference Between an Outside Line. and up to 2 Handsets. ? Use up to 2 Handsets on a Call. ? 50 Name/Number Phonebook Directory. Lighted Keypad on Handsets. Large Lighted Display on Handsets. ? Selectable Ringer Tones. Handset Volume Control. Ringer Volume Control. Any Key Answer.