Does facetime charge for sending short messages?

When the iPhone activates iMessage and FaceTime, it will generate international short messages starting with 0044. If you use the unlocked version of iPhone, the international SMS fee system generated by activating the above services with China Mobile's (U)SIM card in Chinese mainland will be reduced by default, while the related fees generated by locking and modifying the machine will not be reduced.

If it is confirmed that the requirements for activating the above functions are met, but the international SMS fee starting with 0044 is still incurred, please collect the following information according to Apple's requirements, and then contact Apple's technical support hotline 400-666-8800 for feedback.

(Note: The following information is indispensable). 1. Time and place of purchasing equipment; 2. Proof of purchasing equipment; Third, the photo of IMEI label is displayed on the back of the equipment packaging box; 4. When did the device automatically send international short messages? 5. If the equipment system is restored to new equipment, whether the problem still exists; Sixth, provide a complete screenshot of "About this machine".