Polycom VVX310 extension blinking green when phone is not in use
US account, Case # 05551615. Three of the phone line extension has started a green blink on all of the Polycom VVX310 in our network. The line and phones are not in use and the extensions are blinking as if someone is using the phone or has it on hold. There is also a phone headset displayed. This just start last week. Does anyone know answer how to repair this issue?