1. Call the China number directly with the Lao calling card, and the cost is 2000 kip per minute, which is about 1.66 yuan RMB.
2. Making a phone call in an Internet cafe or a public phone booth costs 2,500 kips per minute, which is about RMB 2.08.
If you have any specific questions or need more detailed information, please consult your local telephone service provider or relevant institutions.