I have two mobile phones:
- Samsung Galaxy S3 i9305 with SIM card
- Samsung Galaxy Note 3 N9005
I would like to
- connect them with Bluetooth,
- start my phone calls from Samsung Galaxy Note 3 remotely through Bluetooth,
- the voice should go through Bluetooth to Samsung Galaxy S3, using its SIM card to make the phone call.
There is a remote Bluetooth sim solution named rSAP (Bluetooth Remote SIM Access Profile), which is used to remotely connect to car mobile.
http://www.android-rsap.com/bluetooth-sim-access-profile.html
But the developer of the app said, it will not work for the task I need:
I don't think you will find a solution for your use case. It may be possible to do it by using the "Handsfree" Bluetooth profile but I doubt that the Android programming interfaces make a Handsfree client possible. You will most probably have to create your own Android firmware, e.g. based on LineageOS.
Is this possible to solve in some other way?