My mobile phone has 50 voice messages, but I don't know how to use it or how much to charge. The mobile phone says it doesn't charge, ask for help, thank you!

When you dial 12590 10 with your mobile phone, you can record it after hearing the sound of "Didi", that is, say what you want to say quickly. The longest voice message can only be recorded to 1 minute. Then you will be prompted to enter the other party's number, that is, who you want to send it to, and then you can send it.

Note: 1, local calls to 12590 10 are free; 2. Voice messages can only be sent to local people, not long-distance calls. 3. Each voice message is 1 min, and the longest recording time is 1 min.