What exactly is China Mobile's call barring?

1. Restrict all outgoing calls: After this function is set, the mobile phone can only answer incoming calls and cannot make calls. You can't send text messages, but you can receive text messages and make free calls.

2. Restrict all international calls: This service can flexibly control the international dialing rights of your mobile phone. Avoid being stolen to make international long-distance calls, resulting in economic losses. You can send and receive short messages.

3. When roaming, it is restricted except for international calls belonging to foreign countries: when roaming internationally, after activating this function, you can only make domestic and international long-distance calls, not other countries. If users roam in Hongkong, they can call back to China? Mainland China (such as 00 18620878 1234), but you can't make international calls from other countries.

4. Restrict all incoming calls: After this function is set, the mobile phone can only make calls and cannot answer them. (Can only type, can't type) You can't receive short messages, but you can send short messages.

5. Restrict all calls during roaming: During international roaming, only calls can be made, but no calls can be answered. If users are unwilling to answer the phone while roaming, you can use this service to restrict incoming calls. The inbound call restriction function during domestic roaming has not been realized yet.

6. Some mobile phones can also limit incoming calls to groups in the phone book, for example, calls outside the "colleagues" group, calls outside the "family" group, and even calls outside the phone book are not allowed.

Extended data

There are two types of call barring for inbound restrictions:

1. Restrict all incoming calls: When a user signs up for this service with an operator, no one will receive the relevant incoming call notification when calling the signed user.

Cell phones can only make calls, not answer them. (I can only type, but I can't type) I can't receive text messages, but I can send text messages.

2. Restrict all incoming calls when roaming outside the HPLMN: When roaming internationally, you can only make calls and cannot answer them. In view of the fact that the call fee is relatively expensive when users roam abroad, they can use this service when users roam out of their HPLMN, so as to avoid answering more incoming calls when roaming, resulting in high fees. In addition, signing the service will not affect any incoming calls of users in HPLMN.

Baidu Encyclopedia: call barring