I currently have multiple old Siemens DECT phones operating off our single landline .
If feasible I would like to replicate this system by having each family
member having access to the line via their mobile phone running the mAPP.
Please advise how this can be set up if possible or a possible alternative solution
The freshphone account can only be registered to one device or application. If the account is registered to other device at one time only one device will ring for incoming calls.