Some friends have only one card and only one number. But some friends of the mobile phone card has the main card and deputy card, such as some friends will give the old man at home with a deputy card, with the main card, the old man at home with a deputy card, don't have to go to the trouble of paying, the main card deputy card or there is a difference, so the mobile phone card and the main card what is the difference?
The difference between the mobile phone card and the main card mainly includes the following aspects: 1. The number is different. Some friends may take the mobile phone card, the main card or the Pr phone cardsas the living number or the work number.
2. Different functions. The secondary card of the mobile phone does not have too many functions and does not have some functions of the main card. Mobile phone main card function is more comprehensive, with some vice cards does not have the function, such as MMS.
3. The package is different. The secondary card of the mobile phone can be used only after the primary card of the mobile phone has selected some packages. The primary card of the mobile phone plays a leading role, and the fees paid include the costs of the secondary card.