Can China Mobile receive SMS as soon as it starts roaming?

Yes Roaming is a mobile phone service name, which refers to the function that a mobile communication system can still provide services for a mobile station after it leaves its registered service area and moves to another service area. China Mobile can receive short messages as soon as it starts roaming, which is very fast. Roaming, like mobile phones, can roam between different base stations, and wireless network workstations can also roam between different APS.