Users of Jiangsu Unicom can enjoy the preferential double discount of making calls to roaming places and places of residence and roaming to receive free calls after customizing the "Shuangchengtong" service in a specific area.

Scope of application: new and old users of 2G and 2/3G converged services. SMS activation (cancellation) mode: SMS activation (cancellation)+region name "to 100 10. Example: To open (cancel) Suzhou, users need to send "Open Suzhou" (cancel Suzhou) to 100 10.

"Shuangchengtong" provincial package

Monthly function fee 2 yuan; When roaming in a directional roaming city, dial the roaming place and home.

Calls are charged at 0. 15 yuan/minute, and answering is free; Other expenses remain unchanged. ?