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How to Use Grandstream GXP1620/1625 IP Phone
Pick up to place or answer a call.
Indicates phone line status. When lit:
Green: Line is idle.
Red (steady): Line is active or in use.
Red (blinking): Line is on hold.
Message Waiting Indicator
Displays solid red when you have a new voice mail
message.
Press a soft-key button to perform the action shown
on the label on the screen above.
Press to access voice mail.
Press an arrow to scroll left, right, up, or down through
items shown on the screen.
Press to mute or unmute the phone. When phone is
muted, the button glows green.
Push to turn the headset on or off. When the headset
is on, the button glows green.