Call drop while talking long distance and strange number in log

[rcarbis]

Talking to relative in NY, call dropped with no dial tone after that.  Unplugged all phones, checked the connection box.  Dial tone came back after about 15 minutes.  Checking the digital phone log revealed that {edited for privacy}was listed as being called 7 times during the time of no dial tone.  Looking at the log again showed that {edited for privacy} was called eight times yesterday.  About a call a minute to this number.  Have no idea what this number is.  It seems that everytime the calls are dropped, this is the number in the log.  What is happening? 

[rcarbis]

OK, after further review, it is probably the alarm system, so I will check it out.  After fios was installed, I did check with the alarm company and everything was working OK.   Why is this only happening when talking long distance for a long time is a mystery.

[rcarbis]

The alarm system checks out OK, strange number was just the system making the regular 28 day call.  Calls are still dropping, mostly after talking for a long time.  Can call the number back immediately and get connected.  Dial tone is not missing for these latest incidents, althought it was missing once in the past.   Also have an answering machine that  clicks at random as if someone is picking up a phone.  Answering machine is set to 4 rings and digial voice answering is set to 6 rings.  The whole system worked fine when installed, now is a constant problem.  Going to start disconnecting things and probably run a wire from the box directly to one phone.  Is there a tracer that can be hooked up to monitor the line?