Dial-On-Demand Routing - Cisco 1721 - VPN Security Router Bundle Hardware Installation Manual

Appendix D Ordering and Configuring an ISDN Line

Dial-on-Demand Routing

Bandwidth on Demand and Dial Backup
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To place calls on the ISDN interface, you must configure it with dial-on-demand
routing (DDR). See the chapter "Configuring DDR" in the Wide-Area Networking
Configuration Guide for detailed information about DDR.
See the chapter "Configuring DDR" in the Wide-Area Networking Configuration
Guide for detailed information about bandwidth on demand and dial backup.
Cisco 1721 Router Hardware Installation Guide
ISDN Configuration Options
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