它还允许根据被叫用户预约数据进行无条件反向计费。

It also allows for unconditional reversal of the call charging based on subscription data related to the called user.

youdao

它也向被叫用户提供了在呼叫激活阶段对剩余呼叫或对整个呼叫反向呼叫计费的方法。

It also provides the called user with the means to reverse call charging during the active phase of the call for either the rest of the call or for the entire call.

youdao

它也向被叫用户提供了在呼叫激活阶段对剩余呼叫或对整个呼叫反向呼叫计费的方法。

It also provides the called user with the means to reverse call charging during the active phase of the call for either the rest of the call or for the entire call.

youdao