Controlling X2; X2 Server Mode; X2 Symmetric Mode (Host Mode) - US Robotics x2 Courier I-modem Manual

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Controlling x2

The Courier I-modem allows you to communicate using x2 Server Mode and x2

Symmetric Mode.

Using x2 Server Mode, you can accept calls from x2 client modems. Using this

mode, the x2 client modem that connects to your I-modem can receive data at

speeds up to 56 kbps and send data at V.34 speeds.

Using x2 Symmetric Mode, your I-modem can connect at speeds of 56 or 64

kbps in both directions over a 3.1 kHz voice call ( *V2=3). For x2 Symmetric

Mode to work, our I-modem must connect to a modem using x2 Symmetric

Mode, such as another Courier I-modem.

Note: In some areas, 3.1 kHz voice calls over ISDN are cheaper than data calls.

Use the following S58 settings to control x2:

To do this

Disable x2

Force A-law mode

Disable Symmetric Mode

Note: A-law is required in all countries but the United States, Canada, Japan,

Taiwan, and Hong Kong. If you are using your Courier I-modem in one of

these countries, do not force A-law mode.

x2 Addendum

Use this command

S58.0=1

S58.2=1

S58.3=1

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