I thought that feature was already built into all phones duel SIM devices. I have a colleague that has business phones with duel sims, his SIM activation timer is built-in.
Anyway look at this link https://www.b4x.com/android/forum/threads/simcard-also-dual-sim.51301/. I do not know what it does, but personally I can't see you being able to shut down a SIM. Now making a SIM silent (no ringing) should be easy enough to do in between certain time. Dropping a call or sending it to the answer phone message is another option too.
EDITED: I believe that there might be a phonestatelistener library too, but I have no idea what that even does.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.