We have a BT 3505 digital 3 phone system. The master phone is in the dining room, a slave phone is in the lounge and the third one is in our bedroom. (Until recently, we have both been on call 24/7)
The BT telephone cable terminated under the stairs and I ran an extension to our old phone around the floor, hidden by the carpets. Due to various changes to the flooring, I am unable to do the same again.
No problem thought I, I'll run it around the ceiling where the eye does not often travel. In the mean time I slung up a 10 M. extension over the doors till I could get a round tuit. The other day, I bought a 20 M extension because I couldn't source a 15 M one. The total wire length would have been about 10 to 12 M.
Now comes my problem. After drilling a hole in the wall and passing the plug towards BT's socket, I pinned it up to run along the ceiling to the socket in the lounge that shares the internet router and the master digi phone. I used my mobile to test the line. All was well.
I woke this morning to find a note from my wife, saying that the house phone was giving the message that the number called was not recognized. Lo and behold I got the same :-( Switched back to the 10 M line and everything works fine.
Is this because...
1 I have coiled the excess cable (about 7 M) and slipped an elastic band around it. Yes, I am aware that they should be twisted pair, but I suspect, due to the style of cable, that they are not, because I can't find any cable clips that are small enough to hold it to the wall. But I could be wrong. Extension is of the type that you can buy anywhere.2 The cable is now too long for the digi phone.
3 the BT digi phone can not get through the coiled wire.4 the digi phone can not get enough signal to the BT inlet, because of the length of extension cable.
Any ideas anyone?
TIA
Dave