Paging Port (Analog POTS 2 port card) Call Rejected /Noise

[SWDMVP]

Hello Fellow IP Office Guru's!
I have a weird issue that I am chasing around.
I moved a customers Avaya IP Office from one location (Warehouse landing, near the RAYMER 795-10 Amplifier & Bogen WMT-1A) into the building to another location about 35 feet away.

Prior to my moving the IP Office, it worked fine, with 1, 2 port analog card, which was being used for warehouse overhead paging & call ringer.
After I moved it down, we also added another 2 port analog card, to add a conference room phone for them.
After the move, everything worked fine except that the Paging to the warehouse overhead paging made the initial beep and made some crackle/screech noise and also did not allow voice over the page. (Any phone is used for paging, no microphone) 78 or *78 is the short code.
I started messing around and trying to change things and even tried to program another analog port, and now even when i have it set back to the same exact settings as it was before (of course I backed up the config before changing anything, all good tech's do this) I now get Call Rejected from any and all phones I try to dial the short code or direct to the extension.
If I change the shortcode line group ID to other lines, the call states busy.

Details:
IP Office 7.0 Config here:

https://www.dropbox.com/sh/j56jypm54z6gmjc/AADssTq1aqZmJTmhvCGVmFaCa?dl=0

Analog port in a 2 port card.
Extension 253 set to Paging Speaker / Caller Display Type = Off
User has no Forwarding or individual Short Codes, no VM.
Short Code: Code=78, Feature= Dial Paging, Telephone Number=235, Line Group ID= 0

Route for Paging: Extension 235, Module BP3 Port 1 -> Patch Panel (New Network Rack) -> Upstairs Patch Panel (old phone system location)to Avaya UPAM in, then out and plugged into power -> Bogen WMT-1A -> Raymer Amplifier Mic Jack -> (GND/8 ohms) to Loudspeakers.
Now that I am writing all of this out, could it be that the tip/ring is swapped in between the two locations? would that matter? could that cause a call reject or busy error on paging phone?

When I first moved the system and hooked it up, my calls to either the short code or the extension 235
What else could be causing Call Rejection when calling this extension, or dialing the shortcode?
Your help is appreciated!

 

[TouchToneTommy]

A UPAM only works with a TRUNK port (loop or ground start), a RINGING analog station port (set as IVR in the IP Office), or a PAGE PORT that provides dry audio AND a contact closure.

The WMT-1A matching transformer matches 600-ohm output of the UPAM to a high-impedance AUX input on the amplifier, unless you move an internal jumper to make the RCA microphone Lo-Z.

It might be that the IPO port programmed as a paging speaker was connected to the 2 center pins of the 8-conductor modular port on the side of the UPAM and a constant short was provided across the contact closure pins, but this would keep the UPAM in constant paging mode.

You might be able to simply bypass the UPAM, connect the Tip and Ring from the IPO station port to the 600-ohm screw terminals of the WMT-1A, and plug the RCA into the input of the amplifier.

 

[SWDMVP]

Removed the UPAM from the mix and it all worked!
Not sure how it was working previously with the UPAM in the loop.
Thanks!