My mobile phone is roaming abroad, how to send text messages?

Telecommunication service, 1. If you send SMS to Chinese mainland's mobile phone number (excluding Hong Kong, Macao and Taiwan), please enter the other party's mobile phone number directly. 2. If sending SMS to a mobile phone number outside Chinese mainland, you need to enter: 00+ country code+mobile phone number. (Example: In the United States, using CDMA network to send short messages to mobile phone users in Hong Kong (area code: 852) requires entering "00852 mobile phone number". For more service benefits, click on "official website" customer service 220 below to answer your questions.