Panasonic BB-GT1500 Operating Instructions Manual page 24

Preparation
Status
Color Light pattern
OFF
24
For product assistance, visit www.panasonic.com/help
Meaning
— L The power on the base unit is off.
L To use the A IP line, you need to agree to the
Terms of Use for the A services using the
handset (page 18).
L The Ethernet cable is not connected properly.
Connect it.
L Your network devices (hub, router, etc.) are
turned off. Check the LEDs for the link status of
the devices.
For A assistance, visit www.joip.com