I have a G3 v9 system 3 weeks ago i installed 3 analog station that supported caller ID on monday of this week all 3 stations stoped supporting Caller ID. Two phone were on one card while the 3rd was on a different card.all 3 stations were sill functioning on the same ports but would no longer support Caller ID. I have resently moved those stations to othe ports on different cards and Caller ID came back up. Can anyone exsplane this.