In Elevator Phone Connectivity Reuirements ASME 2019 is WIFI bridging Acceptable?

Question

What is acceptable connectivity for an Elevator Phone system. As analog systems are going by the way side, Cellular is one option, however is it acceptable to use point to point WIFI bridging to accomplish this task and where in the code regulations is the information regarding this ?

Answer 1

The standard seems to specify 2-way communications, with requirements for testing, alternate power, etc., but does not specify how that should work.

There are a lot of requirements there, but they seem to leave to you how to make it work. The applicable section is 2.27.1 Car Signaling Devices.