Will I still have service whilst my number transfers?

Mostly, yes:

• Before switch day: your old SIM works as normal, and your Olilo eSIM works on its temporary number.
• On switch day: expect a short gap (usually minutes) while the number moves.
• After: your old SIM stops working and your number rings on olilo.

If calls aren’t arriving a day after the switch, see My number transferred over but I can’t make or receive calls.