KX-TA824: PT won't ring but an SLT will

[DaveFromRI]

I've got a KX-TA824 with CO Line #4 set to ring a group of extensions.
Existing conditions: CO|Incoming/Outgoing|CO Line Number 4|Ringing for incoming CO calls [Immediate].
PT and SLT is plugged in parallel into extension Jack 01.

1) If a PT (Panasonic proprietary Telephone) is plugged into the port as "Paralleled Telephone", all SLT's ("Single Line Telephones", i.e. POTS) ring except the one with the PT.

2. If I unplug the paralleled PT, the SLT (POT's) phone on the same jack (01) rings when a call comes in on CO line 4.

{TE824_Firmware_3.0.3I}

Thoughts, opinion's, questioning why I'm bothering with analog phones?

Actually, please disregard that last point about analog phones. I'm an old Bell Telephone guy putting in way too many analog phones in my home, just to recreate the "good old days". Ahhh... the good old days of MF signaling, 2600hz, TSPS, Crossbar #5...

 

[realfoneguy]

You can check the ringer switch on the side of the phone. You never said if the intercom rang or not. Do not parallel the extensions. The 824 is an analog system and the PT phone needs all 4 wires to operate. I stay away from 824's like the plague but I will ask does the programming say 101-1 and 101-2. If so, the PT phone is the -2. Analog phone is the -1.
Yea, I like the 5Xbar too as well as the 5ESS. Brad