How to make an international call or send a short message with the card of China Mobile M-Zone?

How to make an international call with a mobile phone number:

Before making an international call, you need to confirm whether your number is open or has international, Hong Kong, Macao and Taiwan long-distance functions.

The dialing method is: 00 (or "+")+the country or region code of the other party+the phone number of the other party.

The method of sending international long-distance short messages by mobile phone number;

The sending format is: 00 (00 or+in Chinese mainland)+country code+counterparty number (if the counterparty number has an area code, you need to add the area code before the counterparty number).