Does the China+ IMSI have roaming capabilities in this region as well? (Can the SIM roam into Vietnam or Japan for example?)
Yes, the Multi IMSI China+ SIM works normally in the other regions. But in Mainland China, just China Telecom the 4G/NB-IOT network is available and in Hong Kong 2G/3G/4G at HKT CSL and in Macau 4G at China Telecom Macau network is available.
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