Features: Intercom Facility Between Two Phones. Call Transfer facility from Phone 1 to Phone 2 & Vice Versa. Dual Mode FSK/DTMF CLI compatible. Two Way Speakerphone. 3 one touch memory.(M1,M2 &M3) Auto Add “0” in Call Back. 28 Incoming calls memory. 10 outgoing calls memory. 5 step LCD contrast adjustable. Programmable Flash time and Pause Programmable Tone / Pulse Dialing Mode. 3 step ringer Volume switchable Features: Office Boss-Secretary Phone Call Transfer facility with consultation Intercommunication tool Pulse/ Tone Dialing Facility Robust Design