I'd still check the wiring between them. Those Panasonics are fairly stable, as are the Bogen units. Temperature can definitely affect a failing copper connection for sure and it can be intermittent. Ask me about my cable TV service...

I'd tend to think that if you had a hardware problem, it would be all or nothing. The only connection between the system and it's paging output jack is a 1:1 transformer, and if it was bad, you'd have nothing at all.


Ed Vaughn, MBSWWYPBX