20 15 Travel to Malaysia in April. Because of work needs, my mobile phone needs to receive text messages and answer calls. How much is the charge?

It is free to receive peer-to-peer SMS when roaming internationally. China Unicom users, please select Celcom or DiGi telecom operator network in Malaysia, answer 1.86 yuan/min, dial back to Chinese mainland 1.86 yuan/min, and dial Malaysia local 1.86 yuan/min. Text messages sent back to Chinese mainland are 0.56 yuan/message, and the traffic is 0.0 1 yuan /KB. Is there a charge for not answering the phone when roaming internationally? The cost varies according to different countries and operators. What is the charging method in Malaysia? I suggest you contact Unicom customer service first to find out.