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In telecommunication, the term automatic switching system has the following meanings:

1. In data communications, a switching system in which all the operations required to execute the three phases of information- transfer transactions are automatically executed in response to signals from a user end-instrument.

In an automatic switching system, the information-transfer transaction is performed without human intervention, except for initiation of the access phase and the disengagement phase by a user.

2. In telephony, a system in which all the operations required to set up, supervise, and release connections required for calls are automatically performed in response to signals from a calling device.

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Topics: Automatic Switching System, Automatic Dependent Surveillance...

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Automatic redial	Automatic sounding	Automatic switching system
Automatic teller machine	Automatic baud rate detection	Automatic squeeze

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