I have not heard of this in circulation and would be a unique feature that most point of sales do not offer. Here is the functionality.

When a a customer calls, the system identifies the phone number and matches it to an existing customer profile in the Clover Point of sale. If a match is found the profile is displayed on the clover device, allowing staff to view or edit details, or create new sale or order. If no profile exists, it prompts the creation of a new one using the caller's information/or just phone number.

This would streamline customer management, enhance service, and improves efficiency.

Most modern businesses are shifting to VOIP but small and older systems still may use analog. All inputs can be converted to analog and this could leverage a phone jack into the already existing power brick...but that would be a step down in scalability and modern practice.

A more modern solution would be that both analog and VOIP can be converted to digital. The responsibility for this convertor or hardware can fall directly on the merchant's IT company. Any IT person should be able to make this work. This would require another ethernet input directly into the Station/Duo POS HUB/power brick.