HT503 current firmware (v15 something); FXO port works to our POTS fax line.
Line from our Bogen phone system works on a POTS handset.
Connect Line port from HT503 to same line from Bogen, HT503 indicates line is busy.
POTS handset into Phone port on HT503; Line port on HT503 to line from Bogen: busy when hitting *00 from handset. Again, works OK with our other POTS line. I presume some setting needs changed on the HT503 to work with this Bogen, but can’t find it.
We have other Bogen systems in other buildings, different models, and the same basic setup works for them.
We are trying to use the new VOIP handsets to make announcements through the Bogen. Have to use a POTS handset in one location right now where we pick up the handset (hear dial tone), hit #0, hear the announcement tone over the PA and start announcing.