
Implementation Notes for All Dial Services
114062 Rev. B 4-7
All dial services can use asynchronous PPP for connections between two routers.
Only demand and backup service can use asynchronous PPP for connections
between a router and a terminal server.
All protocols that can operate with PPP, CHAP, and PAP can operate with
asynchronous PPP. Asynchronous connections also support software and
hardware data compression.
Configuring Modems for Asynchronous PPP Interfaces
Site Manager simplifies modem configuration for asynchronous dial-up
connections that use Hayes signaling. Site Manager 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. Your modem may use a different set of
commands, so refer to the manual for your modem.
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