LED Status lights of the SPA901
From Asterisk Australia
LED Status lights of the SPA901
Q. What is the meaning of the indicator lights on my SPA-901?

The following tables describe the status indicators and controls on the front of the device and the ports on the back panel of the device.
Message waiting light - On: you have a voicemail message.
STATUS - Off: make a call. On: make a call; line is shared. Flashing: shared line on hold. On red: line in use. Flashing red: local call on hold. On orange: phone not registered.
FLASH - Press to pickup a second incoming call, transfer a call, or setup a three-way conference call.
REDIAL - Press the redial the last number called.
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