| Subject | English | German |
| commun. | auto callback | automatischer Rückruf (modem feature, to prevent unauthorized calls) |
| telecom. | automatic callback | selbsttätiger Rückruf |
| commun., IT | automatic callback | automatischer Rückruf |
| telecom. | automatic callback | Rückrufautomatik |
| comp., MS | Callback Control Protocol | Callback Control-Protokoll (The Network Control Protocol that negotiates the use of callback over PPP links) |
| comp., MS | callback function | Rückruffunktion (A function provided by (IIS) that allows an Internet Server API (ISAPI) extension or filter to access IIS services) |
| comp., MS | callback modem | Rückrufmodem (A modem that, instead of answering an incoming call, requires the caller to enter a touch-tone code and hang up so that the modem can return the call. When the modem receives the caller's code, it checks the code against a stored set of phone numbers. If the code matches an authorized number, the modem dials the number and then opens a connection for the original caller. Callback modems are used when communications lines must be available to outside users but data must be protected from unauthorized intruders) |
| comp., MS | callback number | Rückrufnummer (The phone number at which the sender of an SMS can be reached that is displayed to the recipient in the SMS itself; it can be a different number than the cell phone number used to send the SMS) |
| commun., IT | callback number display | Rückrufnummernanzeige |
| comp., MS | callback security | Rückrufsicherheit (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) |
| commun. | callback service | Rückrufdienst (international telephony service with reduced charges) |
| comp., MS | Emergency Callback Mode | Notfallrückrufmodus (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 | vordefinierter Rückruf (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 | vom Anrufer festgelegter Rückruf (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) |
| gen. | to callback | zurückrufen |