United Data Corporation

A Proctor Company


Long Loop Adapters


Telephone Demonstrators

Privacy Modules

Telephone Power Supply




United Data Corporation is currently in the process of liquidating the assets of Proctor & Associates Company. Included in this liquidation is both their customer premise line of products as well as their test equipment line.

This website summarizes what is currently available from the remaining inventory.   Please feel free to contact us at the address below if you have any questions regarding any of these products or their availability.

Copyright United Data Corporation, Inc.


Dial-Up Test Set (51200-S)

Dial-Up Test Set (51200F23)

Leased Line Test Set

PBX Test Set

Call Collector



Production Equipment

Lab Equipment

Plastic Housings