There's nothing wrong with the mobile phone, except making a phone call. What happened?

The phone suddenly stopped calling. Check the following points:

(1) Mute or minimize the volume: If the volume of the phone is minimized or muted, of course, the other party's voice can't be heard. The solution to this problem is to adjust the volume key until it is in the correct position. Or set the call volume in the menu.

(2) Pause or prohibit calling: Some models have this function, which may be caused by touching the keys by mistake. Then click the button again to see if you can hear the other person's voice, or try to redial. Different models have different setting methods. This possibility will be less.

(3) The handset is damaged: generally, there are fewer such failures in the mobile phones of big manufacturers, but there are more such failures in the knockoffs with loud voices. At this time, if the mobile phone supports speaker playback, you can turn on the speaker or use headphones instead, but it is best to repair it during the warranty period before continuing to use it.

Mobile phone, or wireless phone, usually called mobile phone, was originally just a communication tool. Also known as mobile phone in the early days, it is a portable telephone terminal that can be widely used. It was originally developed from the battlefield mobile phone manufactured by Bell Laboratories in 1940.

1958? Soviet engineer Leonid Kupriyan Norwich invented лк- 1 mobile phone, 1973, American Motorola engineer martin cooper invented the world's first commercial mobile phone. So far, it has developed into the 4G era.

Are mobile phones divided into smart phones? [4]? And non-smart phones (feature phones). Generally, the performance of smart phones is better than that of non-smart phones, but the performance of non-smart phones is more stable than that of smart phones. Most non-smart phones and smart phones use the CPU of British ARM company. Smartphones have higher main frequency, faster running speed, faster processing tasks and more convenient daily life (such as Nokia n8 1 main frequency of 369 MHz); Instead of smart phones, the frequency is relatively low and the running speed is slow (for example, the main frequency of Nokia 5000 is 50 MHz).

References:

Baidu encyclopedia-mobile phone