
117353-B Rev. 00
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Chapter 1
Dial Services Overview
A dial service provides access to a central switched network for remote users,
such as people in branch offices, telecommuters, and sales people in the field. To
make these remote connections, dial services use dial-up lines (also called
switched lines), which are activated when there is data to send across the network
or when a failed or congested leased line needs a secondary dial-up connection.
Dial-up lines can be a cost-effective alternative to leased lines and packet
networks, which are permanent connections that are available regardless of
network traffic.
This chapter introduces Bay Networks dial services: dial-on-demand, dial backup,
and bandwidth-on-demand. Chapters 4 through 8 describe Bay Networks
implementation of each dial service.
This chapter includes the following information:
Topic Page
How to Use This Guide 1-2
Bay Networks Dial Services 1-3
Dial-on-Demand Service 1-5
Dial Backup Service 1-14
Bandwidth-on-Demand Service 1-22
Using the Same Line for All Dial Services 1-27
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