Hi Ayisha_B
thanks for the prompt reply, Checked the link, and can confirm that all was followed to no effect. Unfortunately, we do not have another phone, the Trim phone that was replaced went to the tip some 10 years ago....should have kept it, be worth a few bob by now.
We do have a TruCall whic acts as a phone but uses leds to indicated call received etc. when I use a mobile, this stays a constant green i.e. line is good, no call incoming.
I take the Trucall out of the system by plugging the phone directly into the input junction box with the same effect. Irrespective as to my home phone, it still would not explain why numerous phonecalls in see just noise and not a ring tone. We have tried phonecalls in from differing telcos, with the same effect.
I have also used the automated system checker that Virgin provides that didn't find anything....it is probably only looking a line levels anyway.
Many thanks for you help though, I'll just have to bite the bullet and attempt to book an engineers
Cheers K