I am using the Jingmentong 29 package now. How can I change it to January 19 yuan to send text messages?

You are talking about 19 yuan's new music package, monthly rent 19 yuan, giving away 380 domestic short messages, 2M traffic, basic functions of color ring tones, and senior members of wireless music club. Monday to Friday from 8:00- 18:00, local call 0.26 yuan/minute, rest time 0. 12 yuan/minute. Local calls are free. Local calls using 1795 1 are charged at 0. 15 yuan/minute (including local and IP charges). Optional service packages: mobile Internet access in 3 yuan/month, 10M traffic SMS package in 3 yuan/month, 60 domestic SMS roaming package in winter and summer vacation in 5 yuan/month, and domestic roaming call to Chinese mainland at 0.39 yuan/minute; Domestic roaming is called 0.29 yuan/minute. The effective time of service package is: annual1-February, July-August news package in 8 yuan/month, including caller ID function, and a version of morning and evening news MMS package in 8 yuan/month. Including caller ID function and 15 domestic MMS = = = = = = = = = = Edit short message KTYY 19 to 10086 to activate this package (effective next month). Note: Call ID when using Golden Gate Pass.