I do work in the West Texas desert quite often The ONLY Cell service is AT&T, so I have to get a prepaid ATT phone tu use while out there.
Yesterday while onsite a co-worker was using his SPRINT phone with zero issues roaming on AT&T !
WTF?? Why is the “new guy” able to use his service on MY carrier, but I’m NOT.
How do I SWITCH to SPRINT ???