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Who knows how to calculate SMS and telephone charges?

SMS: The mobile and Unicom networks are 0. 1 yuan, and the inter-network is 0. 15 yuan.

China Mobile and China Unicom send PHS 0. 15 yuan.

PHS sent 0.08 yuan to China Mobile and China Unicom.

Telephone charges: The telephone charges of China Mobile and China Unicom vary from place to place.

PHS telephone charges are consistent with local fixed telephone charges.