Got an Switching System Panasonic KX-T61610B. A few months ago, on line 11 I was able just to program, not to speak (no dial tone). Since this Monday, on that lousy line 11 I can only speak, but I can't program anything (no data link). I checked the wiring and it's OK, and between the L and H wires I have around 14 V, same as line 12.
Can anybody help?
Thanks


PcFan