Travel to South Korea and call Chinese mainland in South Korea. If you use skype, is it necessary to open international roaming service on your mobile phone?

Hello! Skype can only be used normally on the basis of WIFI, so it can be used in Korea with WIFI, and you don't have to use your mobile phone number to open international roaming! Now Japan and South Korea are using CDMA2000 network standard. If you want to roam in Korea, you need to open an international roaming service. The mobile phone is CDMA2000 network, and it is a telecom mobile phone in China. If you use your mobile phone number, you can rent a plane in the business hall. Please contact local customer service 10086 for details.