How much does it cost to send text messages and make phone calls on QQ? (concrete)

QQ address book sends short messages and phone calls, which are collected by operators.

QQ address book provides the basic functions of convenient address book, such as making phone calls and sending text messages. The charges for calls and text messages are the same as those for direct use of the phone's own address book, which will be charged by the operator. In addition, QQ address book provides the function of sending messages through the network, and will not charge any other fees except generating a small amount of network traffic. Please feel free to use.

QQ Address Book is a communication software that perfectly integrates address book and instant chat. Provide convenient address book functions such as calling, texting, searching for contacts intelligently, displaying native place, and synchronizing contacts. After the address book account is enabled, it supports multi-group chat, sending pictures, voice chat and other functions.