Unable to find any reference to what may be the cause. Able to make and receive calls from master and the other three handsets. There was one recorded message on the answering machine which I have since deleted, still the blue light on the base flashes.
Solved! Go to Solution.
Hi, @born2boogie welcome back and thanks for posting. The Essential phone user manual says that a flashing blue light on the base indicates one of the handsets is in use. If you have a new message the green light flashes. I hope that helps?
Thanks
Neil
We are having this problem with our bt advanced phone z set. Flashing blue light on main base. Anyone trying to get through only gets an engaged tone. Checked all handsets are fully engaged in their bases but this doesn’t fix the problem. What can we do?