Headset socket
Headset / handset /speakerphone select
Headset / handset /speakerphone volume 4levels adjustable
Data port RJ11
Triple standard message wait lamp (high voltage, reversepolarity, SR switchable)
Incoming call light
16 ringer melodies with adjustable volume
Last number redial
Mute or hold with music & extension release
Cellular phone RFI noise immunity
ELR / TBR (programmable flash time)
Hearing aid compatible
Desk or wall mountable