Hello
I will try to describe my request as precisely as possible. I am looking with a simple application to send from phone A to phone B a sound.
For example if I press the app on phone A , phone B will ring with a special ringtone or sound. As soon as I stop pressing the app on phone A the ringtone or sound will stop on phone B.
I am looking for a wholesale to make a phone to phone emergency call system. As I am disabled, this will allow the person to come as soon as they hear the Ringtone or their
this sounds simple, but probably it is not...
because on phone B there must be some service running in the background, which listens for some event, this could be for example a change of a database value