Can we replace a Nitsuko phone w/ part#92373C with one that has Part#92753?

Can we swap them with no problem? We had experience with some Comdial KSUs where replacing a phone with a diffrerent number of buttons (either less or more) somehow affects the KSU programming.
We just want to make sure that swapping the Part#92373C (16-button phone) with the one with Part#92753 (24-button phone) will not create any programming issues as the system is very old.

Thank you for your time.
Cheers,
Sonny