| Subject | English | Chinese simplified |
| comp., MS | Callback Control Protocol | 回拨控制协议 (The Network Control Protocol that negotiates the use of callback over PPP links) |
| comp., MS | callback function | 回调函数 (A function provided by (IIS) that allows an Internet Server API (ISAPI) extension or filter to access IIS services) |
| comp., MS | callback number | 回拨号码 (The number that a remote access server uses to call back a user. This number can be preset by the administrator or specified by the user at the time of each call, depending on how the administrator configures the user's callback options. The callback number should be the number of the phone line to which the user's modem is connected) |
| comp., MS | callback security | 回拨安全设置 (A form of network security in which a remote access server calls a user back at a preset number after the user has made an initial connection and has been authenticated) |
| comp., MS | Emergency Callback Mode | "紧急回拨"模式 (A mode the phone goes into after a user calls an emergency number (ex: 911) and the call ends. When the phone is in this mode, only the emergency operator can call the person on their phone, so that the emergency operator can call back or determine where the user is at. The phone is in this mode for about 5 minutes or until the user cancels out of the mode) |
| comp., MS | preset-to callback | 预设回拨 (A form of security in which a remote access server verifies users by calling them back at numbers supplied by the network administrator at the time user privileges are granted. Only a network administrator can change a preset callback number. This ensures that no one can borrow a user's password and connect to the server from a location other than the user's normal one) |
| comp., MS | set-by-caller callback | 呼叫方设置回拨 (In Network Connections, a form of callback in which the user supplies the telephone number that the remote access server uses for callback. This setting spares the user any long-distance telephone charges) |