I had a call for assistance from a friend - her Siemens cordless phone and BT wireless router were misbehaving.
A visit with a spare phone identified that the Siemens phone was the culpri t in that it was loading the line too heavily - confirmed when I got home a s it did exactly the same here. If it was the only item on the line it was OK, but add the router or the second phone and it either gave a waa/waa no ise, or it a message saying 'Try re-dialling', or a silence with a distant clicking.
Reading up about REN, or RLA as it seems in this country, would indicate th at perhaps there's a capacitor that's gone leaky. Anyone met this before w ith a phone ?
Rob