Joke Collection Website - Public benefit messages - Why is the display address of the setting center number of the US version of iphone4s Unicom card invalid?

Why is the display address of the setting center number of the US version of iphone4s Unicom card invalid?

Hello! Maybe your SMS center number is set incorrectly.

The specific setting method is:

Set SMS center number: use iphone to dial *5005*7672*+ center number # and press Call.

Check the number of SMS center: dial *#5005*7672# with iphone, and press Call.

Delete center number: dial ##5005*7672*+ center number # with iphone, and press Call.

For the specific center number, please call the local hotline 100 10.