Why is there no SMS reminder service when the phone is turned off?

If you upgrade Unicom's 4G package and don't handle the caller ID function, you need to handle it again. If this is not the case, it is recommended to consult Unicom customer service to find out.

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Activity recommendation

Great discount! 4G national package deposit fee to send discounts! The traffic recharge is coming, and you can choose a variety of traffic packages, which are common throughout the country! 4G main and auxiliary cards, one person pays, and the whole family plays! What are you waiting for? Click the corresponding link below to handle it!

4G national package: /sAbMM

National traffic for half a year: /sAAGE

4G primary and secondary cards: /02upy