Is it possible for BT(or any telephone service provider) to reduce the telephone signal? I've recently got a problem with my caller id at work, it's worked fine for 6yrs up until 2 weeks ago, so I thought my caller id module had broke. No problem, I purchased a new one off fleabay, and still the same problem. The thing is, I have a telephone, caller id module and computer all hooked up to the same line, but only the caller id module can't pick up the number signal. If however, I disconnect the phone, it works again. I've tried a different phone, and it's the same problem. Anyone got any ideas? Really need it all to work to keep things running smoothly at work.