When all participants are connected, the conference call begins.

当所有与会者都连接好时，会议就开始。

youdao

When all participants are connected , the conference call begins.

当所有与会者都连接好时，电话会议就开始了。

youdao

The second leg of the call begins as soon as the destination party or answering device answers the telephone.

呼叫的第二档从目标方或应答设备接听该电话时就立即开始。

youdao

So the conference call begins at 6:33 Eastern Standard time and the court takes up another -- a variety of matters.

CNN: Transcript: White House Counsel Ruff's opening statement

That means that when a call begins, the network essentially opens a path of communication for the duration of the session between the users.

WSJ: U.S. Wireless Carriers Move to New Technology��For Voice

And I can assure you that every call begins with two things -- a call for restraint and a call for concrete direct negotiations so that the people can see the government is willing and able and actively making changes that will lead to free and fair elections.

WHITEHOUSE: Press Briefing