User`s guide

136 XSR Users Guide
Asynchronous and Synchronous Support Chapter 8
Configuring Dialer Services
Addressing using numbered or unnumbered interfaces
Outbound connections
Time of day feature
PPP encapsulation
CHAP, MS-CHAP and PAP authentication and security
Callback
Figure 18 Typical Dial Services Interconnection
Asynchronous and Synchronous Support
Synchronous and asynchronous interfaces can be configured for dialed
connections to one or more destination networks. When requested, the
XSR uses dialing commands to send the phone number of the destination
network to a modem. The modem then dials the destination modem and
establishes a connection. Refer to Figure 18.
Calls can be placed using the following methods:
AT commands on asynchronous ports
V.25bis over synchronous interfaces
DTR dialing for synchronous interfaces
XSR
Modem
Ethernet
Modem
Ethernet
PSTN
XSR