we have 4 iphones on the verizon plan, for the last week the calls are breaking up and calls getting dropped.
Service was great for the last 3 years. What could be the issue.
This is in frisco, TX , however i travel to houston, TX and even there the calls are breaking up.
I have tried updating the software, resetting network settings, turn off/on wifi calling, enabled/disabled roaming,
rebooting phone. Could it be a issue with SIM card, but not all 4 sim cards can go wrong and the phones are 6s, 7 and 8.