What package does Hebei Mobile use to make cheap calls?

It is suggested to open a family plan, and the main number function fee is five yuan per month.

Cangzhou Family Plan 5 can set up eight sub-numbers, and enjoy 1000 minutes.

The main number starts the family plan 5: send the short message "KTQQJH5" to 10086. The main number cancels the family plan 5: send the short message "QXQQJH5" to 10086, and add the short message KTQQJH5# local mobile phone number # cornet to 10086. Delete five members of the family plan from the main number: send a text message to extension SCQQJH5# to 10086 to exit the family plan. Five: send a text message to 1086. Primary and secondary number inquiry member (family plan 5): send a text message CXQQJH5 to 10086. Check the remaining minutes of primary and secondary numbers (family plan 5): send a short message CXSC5 to 10086.