More Proactive SIMs
AT&T inspired me to explore a little more.
Published in
5 min readNov 2, 2021
After my encounter with proactive SMS from an AT&T SIM, I decided to start checking other SIMs as well. I know nearly all SIMs support proactive features, but I am interested to see just how many SIMs actually use them. So I have set up my test bench to test the SIMs I have.