PSA for anyone that has not already migrated to the Tello GSM network.
You need to upgrade now or lose your service and phone number at the end of March. I know some members on here were holding off will they ironed out some problems early on.
I've been on it a year now with zero issues. You can still manually renew to rollover your unused minutes and data with the GSM service.
They will send you a free GSM sim card but you need to make sure your current phone is VoLTE capable or get a new one.
https://blog.tello.com/news/last-cha...-to-tello-gsm/