FSK/DTMF Caller ID System Compatible. Call Waiting CLI for FSK Type-II. LCD Display with 16-Digit and 16-Character. 50 Nos - Phone Book. 50 Nos - Incoming Call Memory. 10 Nos - Outgoing Call Memory. 4 - One Touch Memory (M1 ~ M4). Menu Selectable in English / Spanish Language. 5 Kinds of Normal Ring Melody Selectable. 5 Digits Area Code Setting. 5 Digits Long Distance Code Setting. 5 Levels of LCD Contrast Selectable. 3 Levels of Ringing Volume Control Selectable. 2 - Way Speakerphone with Adjustable Receive Volume. 2 Levels of Handset Receive Volume Control Selectable. Pre-dialing ,Edit & Delete Function. Toggle Mute Function. Tone / Pulse Dialing Switchable. Programmable Flash Time (100/300/600/1000) m Sec. Pause and Redial function. Ring LED Indication. In - Use LED Indication.