Problem description
Bring your own number (BYON) service aims to provide consumers with the ability to use their phone number (MSISDN) for outgoing and incoming calls from non-SIM card or non-cellular devices. Any web-based application can integrate this BYON as a feature utilizing well-known HTTP and webRTC technologies.To access the service, users are required to authenticate using their digital credentials associated with their Internet Service Provider account, for example their operator app credentials. Registration from a web endpoint is necessary to enable the service on these devices.
The regulator community in many countries requires that for any voice call service, the emergency call service must be available, which implies knowing the location of the user who is making a call.
Knowing the service provided and the regulation of emergency calls. The problem is the following. A user A links his device (Tablet, XR glasses...) with his phone number thanks to BYON.
User A leaves his phone (contains the SIM) at home and goes away with only another device (e.g. tablet. No SIM). If this user makes an emergency call, we have no way of knowing his location.
It is necessary to find a solution to locate the above-mentioned devices.