When the other party makes a phone call abroad, it shows that the voice function is not turned on. Can you get the message?

Call the other party, and the other party's phone reminds that the voice call function is not turned on. Possible reasons:

1. In order to implement the real-name registration system, operators will restrict voice calls, text messages and other functions for mobile phone cards that fail to register their real names within the time limit.

2. The other party uses an Internet card. Due to the limitation of the function of the card itself, some network cards only have the function of traffic surfing and no voice communication.

3. The other party has set up harassment interception. Some mobile phone security software can not only intercept and reject all incoming calls except the address book, but also set the "incoming call interception ring back tone" empty number and busy tone.

Extended data

1. Voice call is a communication method through voice and with the help of transmission media. Common ones are landline calls, mobile phone calls, walkie-talkie calls, and voice chat over the Internet. It can be divided into two forms: the consumption of traffic and the consumption of telephone charges. Mobile phone voice call generally refers to making and answering calls with mobile phones.

2. In the last century, voice call only stayed on telephones, mobile phones and walkie-talkies, and now it has gradually developed into a universal means of communication. Voice call can be realized not only by telephone, but also by chat software or even mobile phone software. In the near future, it may be replaced by video calling.