Is the music recharge card true or false?

You are talking about the cost of VoIP.

Dial another number or use software before making a call, and don't recharge your original Unicom mobile phone balance. Generally, you have to recharge your own money, and you can only use a little at a time, mostly with your own recharge money.

And maybe not at any time.

It's no use. Because there are many free VoIP software. For example, Yixin, WeChat address book, etc.

Many softwares that need to be recharged are deceptive and cheat money.

I hope the answer will help you!