I am a prepaid Wopai package. How to roam at the lowest cost and what to drive?

Wopai 36 yuan Package can handle family package business. You need to take the initiative to apply in the business hall, and specify at most three numbers at the same time, including Unicom fixed telephone number, PHS number and 2G3G mobile phone number. After it comes into effect, the domestic calling home number can be ***300 minutes, which can be used locally and when roaming. You can set a number to contact frequently. In addition, Unicom will launch the voice and traffic in the package from time to time to automatically upgrade to domestic voice and traffic services during the summer vacation, and there will generally be mass notification by SMS. If you roam in the province, you can open the Ruyi Secretary, and the function fee is 5 yuan/month. After it takes effect, call 96005455 in the province to make domestic calls, and the charge is 0. 15 yuan/minute, which is not included in the package. The above is the business in Shandong province, which is subject to your local conditions. You can call the local customer service number 100 10 for consultation.