
Configuring Dial Services
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Configuring Modems for Asynchronous PPP Interfaces
Configuring modems is simplified for asynchronous dial-up connections that use
Hayes signaling. The router provides the following list of commonly used
modems that you can choose for your network:
• US Robotics Courier V.Everything
• Hayes Optima 288
• Cardinal MVP 288XF
• Supra 288 Fax Modem
• Zoom V.34X
• Microcom DeskPorte Fast
• BayStack ARN V.34 Modem Adapter Module
• MultiTech Multimodem II MT1432
• Paradyne Comsphere 3820
• Motorola Codex 3261
• Boca V.34 Modem MV.34E
When you select a modem from the list, the AT initialization string is set
automatically, as well as the speaker volume, speaker control, and number of rings
to answer. (You can modify these default settings.) If your modem is not on the
list, you can configure a custom modem and AT initialization command. The AT
initialization command is required for custom modems. Appendix E lists the AT
initialization commands for the ARN. Because your modem may use a different
set of commands, consult the manual for your modem.
The BayStack™ ARN router has an optional V.34 Modem Adapter Module that
requires you to configure an AT initialization command whether the interface is
synchronous or asynchronous.
To configure modems for asynchronous communication see Chapter 2, “Starting
Dial Services Using Site Manager” or Chapter 3, “Starting Dial Backup Using the
BCC.” For instructions on modifying your modem configuration, see “Modifying
External Modem Configurations” on page 9-14.
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