How to call and send text messages to foreign friends?

After editing the content of the short message: enter the sending number: 00 (or+)+opposite country code+opposite number; If it is sent to customers in Hong Kong: 00852+ the other party's number, one yuan each. There is no need to open any business.

After the mobile phone opens the international long-distance service, add the other party's country code+the other party's number and then dial.