Correct Network connections for a 1982 key pad? help please

[allnumbedup]

I have a 1980's ITT 2500 into which I would like to wire this keypad. I aquired this pad as a part so don't know what phone it is from originally.  (It looks like one from a WE Sculptura but is not a WE looking keypad and from 1982).  I connected to the ITT network using same colors as was on the original ITT 32-OPG keypad. Both have eight wires but the ITT also has a spot for brown/silver from the swithhook to the back of the dial and the new dial has a silver wire and no blue.....so I made two changes in wiring:
1. I used the silver wire on the new pad in place of the blue wire on the orignal ITT pad and attached it to "B" on the network.
2. I attached the brown/silver wire from the switchpad to "C" on the network. (this is the one that was installed on the back of the original ITT pad). I believe this wire is for polarity guarding on the original ITT dial.

The phone functions correctly but is now polarity sensitive for "dialing" out. Taping off the silver wire from the new dial makes no difference in function. I am surprised a 1982 keypad does not have a built in polarity guard so I am wondering if one or both these wiring differences caused me to bypass an internal polarity guard.
I would appreciate a suggestion.

[allnumbedup]

So... I found that this pad is from TIE Communications which I gather was a replacement dial used in business phones including SC.  I have an ITT network but gave up trying to replace the ITT pad lead by lead:

Comdial memo from TCI

So, I hooked it up and duplicated switch hook lead placement of a SC touchtone dial as previously described by Robotech99 on the second page of Key2871's post:
Key2871's list of touchtone dials

I was left with an extra slate lead from the pad. It works all around but still does not break dialtone with reversed polarity. I broke down and added a polarity guard.