US Robotics COURIER Manual do Utilizador descarregar pdf (Página 114)

U.S. Robotics I-modem Command Reference

Handshaking, Error Control, Data Compression, and Throughput • Page 11-5

V.120 Rate Adaptation

If you set the I-modem to V

.120, it will negotiate only for V.120 connections. If a V.120

connection cannot be made, the I-modem does not negotiate for other types of connec-

tions.

V.110 Rate Adaptation

If you set the I-modem to V

.110, it will negotiate only for V.110 connections. If a V.110

connection cannot be made, the I-modem does not negotiate for other types of connec-

tions.

Analog Modem or Fax Emulation

The I-modem does not try to make a digital connection and works only in Analog mode. If

you know youÕll make and receive only analog calls, this setting shortens the connect time.

Analog Mode Handshaking

When making analog connections, the I-modem defaults to V.34 and tries for the highest

possible speed (33.6 Kbps) when it attempts to connect with a modem. The V.34 range

spans 33.6, 31.2, 28.8, 26.4, 24, 21.6, 19.2, 16.8, and 14.4 Kbps, and 9600, 7200, 4800,

and 2400 bps. If the remote analog device is not V.34 capable, a connection is made using

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US Robotics COURIER Manual do Utilizador Página 114