I have a cisco 7971 Phone plugged into a 3550 POE switch (there are 5 other POE 7940's and 60's on the same switch) and the 7971 only flashes the speaker light for aproximately 10 seconds, then flashes the mute button for about 1 second.
It continously recycles through these two buttons. The LCD screen never comes on . . I have plugged other POE phones into the same port and they power up fine. I also have confirmed the configuration of the switchport (which is the same throughout our organziation).
Does anyone have any idea what the alternating mute/speaker light indicates?
I appreciate any responses.