Not sure whether the phone will work or not but I can tell you Nitsuko originally manufactured this product and NEC bought them out so you may see some of these products that are the same product but one says NEC and the other says Nitsuko. It's one in the same as far as the brand goes. If you have the 92373C it shouldn't be a problem to try it out. It won't cause any issues with the database. It's just that it may or may not work and there will just be 4 more buttons and no soft keys.

With as cheap as these phones are on the secondary market or I would just get an exact replacement.

Also, these systems are bullet proof and will last through just about anything.

-Daniel