VPL Infotech & Consultant manufactures Telephone Trainer. VPL Infotech & Consultant designs and manufactures merchandising device programmers, device testers, etc. Telephone Trainer, model VMC-TT is a complete kit to understand the working of telephone instruments with the idea of working of exchange. The trainer has DIP switches to create the faults in the instruments and test points to give complete idea about the servicing/ working of telephone instrument.
