My 5400 is installed in the renovaed house, seems to work fine... However if an alarm is triggered, it rings my mobile - I know its the alarm, as the caller id on my mobile recognises the number - and its the only time that number calls me (vacant renovation). The problem is, if an alarm goes off, it rings my mobile (if I answer it or not - the same condition occurs). I get notified. I visit the house, enter my code to disarm the panel - and everything is fine. Except the telephone line which is wired up in mode 3 for the alarm panel - has not released the telphone line - no other telephone can use it - and if someone tries calling the number it is engaged. The alarm panel has not released the mode3 telephone after it has completed the call (successful or not). It gets released only if I go into installation mode and its annoying to remember to do this after each alarm... Any hints on which programming option might affect these conditions - Ive looked through the manual but nothing has jumped out at me... Thanks