Can anyone help please. I have an old model of synergy twin 4100 - and the two handsets are flashing base 1 - I live in a very rural part of Scotland and am worried as I have no access to phone out, nor do we have mobile phone signal. Tried everything and can't get the bases to go back to normal so I can make a phone call

Fiona, July 2017

Both handsets flashing would suggest the base is unplugged or not powered, has failed or is even too far away. Or someone may have been fiddling and corrupted the base.

If the base ir turned on properly you coid try simply pairong ghe handsets with the base. Check the manual (should be easy enough to find online with a search)

Aco, July 2017