| 摘要 |
<p>The system for adding a call waiting party to an existing call connection operates when an incoming call is directed to one of the parties on the existing call connection. The called party flashes the switch-hook on their terminal device to place the other party on the existing call connection on hold and also to pick up the incoming call. If the called party determines that the calling party should communicate with both the called party and the other party on the existing call connection, the called party activates the system to add the call waiting party to the existing call connection. Alternatively, if the called party determines that the calling party should communicate with only the other party on the existing call connection, who is presently on hold, the called party activates the system to substitute the calling party for the called party.</p> |
