US Robotics COURIER Manuale Utente Scaricare il pdf (Pagina 269)

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101

U.S. Robotics I-modem Command Reference

Glossary • Page G-11

Some protocols, such as USR HST and MNP, employ advanced techniques such as longer

transmission frames and data compression to increase cps.

circuit-switched data (CSD)

A type of switching in which one call makes up a circuit (the circuit is not shared with

other calls), and data is passed across the circuit.

circuit-switched voice (CSV)

A type of switching in which one call makes up a circuit (the circuit is not shared with

other calls), and speech or 3.1 KHz audio is passed across the circuit.

Class 1/EIA-578

An American standard used between facsimile application programs and facsimile

modems for sending and receiving Class 1 faxes.

Class 2.0/EIA-592

An American standard used between facsimile application programs and facsimile

modems for sending and receiving Class 2.0 faxes.

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US Robotics COURIER Manuale Utente Pagina 269

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