How to charge the number of mobile GSM when sending text messages abroad?

If your friend's original number is China Mobile, no matter where he is, you will send him a dime home. Your friend's reception abroad is also free, and the local SMS fee he sends you is * 1 15%+0. 1 yuan

If your friend uses a foreign number, then he is sent an international short message, one yuan each. He receives or sends according to the local operator's tariff standard.