My mobile phone can surf the Internet and send messages, but I can't make phone calls … Why?

Mobile phones can surf the Internet and send text messages, but they can't make phone calls, which is generally caused by limited calling function. The calling function is usually limited for the following reasons:

1, Nokia mobile phone (non-Android version): First, check whether there is a number 2 prompt on the phone screen. If yes, it means switching to no phone mode. At this time, just press and hold the # key, and after 3-5 seconds, you will see that the number becomes 1, and you can make normal calls. This feature is only available for Nokia phones.

2. If you can't dial all the numbers, actively limit the voice function of the mobile phone number. If the call function is not enabled, you can contact the operator's customer service for free.

3. The influence of mobile phone settings. Most terminals (or smart phones) can turn on "Call Banning" in the phone's own function or the installed mobile phone housekeeper APP, which can lock the voice phone function and prevent the number from being stolen. You can check whether this operation has been done, and if it is cancelled, you can resume it.

4. Confirm whether the call with the same number failed or all numbers failed. If the same number can't be successfully called, it means that the other party has set the interception or blocking of the calling number (blacklist function).

5. Confirm whether to make international or Hong Kong, Macao and Taiwan calls. If you make such a call, you generally need to open an international or Hong Kong and Macao head office first, and you can't use it without opening it.

6. Check the call interface when dialing to see if there is an IP number before the number. Because each operator's IP number is different, if the phone used a different operator's number before and set the IP automatic dialing mode, then the call failed because the IP number was automatically prefixed after the card was changed. At this point, you can delete the IP auxiliary dialing function.

Tips:

1. You can send short messages online normally, which can eliminate the influence of signal failure. If it cannot be solved by the above methods, you can directly contact the operator to confirm whether it is a local signal, such as voice function limitation caused by local network upgrade;

2. Confirm whether the dialing method is correct, such as errors caused by multiple numbers or missing numbers when dialing.