What are the advantages and disadvantages of China Unicom supplementary card?

The benefits of China Unicom's secondary card are: 1. No need to change mobile phones or add a new card slot to place the secondary card; 2. Meet the needs of users to use different numbers for voice communication with different people; 3. No need to carry multiple mobile phones wait. The disadvantages of China Unicom's supplementary card are: 1. There are conditions for application. China Unicom's supplementary card currently only supports part of the supplementary card shared traffic package; 2. The monthly rent and billing model of the supplementary card are no different from those of ordinary cards; 3. The main card user does not have permission to set up.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What are the advantages and disadvantages of China Unicom's supplementary card?

Benefits:

1. No need to change mobile phones or add new card slots to place secondary cards;

2. Allow users to use different numbers to communicate with different groups of people Communication and SMS communication needs;

3. No need to carry multiple mobile phones to achieve the purpose of separation of communication circles, privacy protection and no-disturbance;

4. Since the secondary number of China Mobile is There is no physical chip, so there is no need for multiple mobile phones or multiple card slots. The monthly communication fee is recorded under the main account package, and only requires a monthly function fee of 5 yuan.

5. There is no need to register for various platforms with one main account, which can largely avoid phone harassment.

Disadvantages:

1. There are conditions for application: China Unicom’s secondary card currently only supports some packages of secondary card shared traffic packages;

2. Monthly rental of secondary card There is no difference between the billing mode and ordinary cards;

3. The main card user does not have setting permissions, and the user cannot independently manage the secondary card, including configuring traffic and voice.

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