3Com 3032 Configuration Manual page 717

Figure 226 An interface placing a call to a remote end
if0
Local end
(Single interface)
As shown in this figure, the single local interface interface0 (if0) originates a DCC
call to the single remote interface if1. Since the call originates at a single remote
end the dialer string can be configured using the dialer number or dialer route
command. When the call originates from the single interface at the local end, the
dialer circular group can be used to configure the DCC. The user can choose to
configure either PAP or CHAP authentication on the interface.
Perform the following configuration in dial interface (physical or dialer interface)
view.
Table 745 Configure a Local Interface to Originate Calls to a Remote End
Operation
Enable Circular DCC
Configure a dialer number for calling a
remote end
Delete the dialer number for calling the
remote end
By default, Circular DCC is enabled on ISDN BRI and PRI interfaces, but disabled on
other interfaces (serial, asynchronous, AUX, etc.) and the user should manually
configure the
dialer enable-circular
the remote end is configured by default.
Configure an interface to receive calls from a remote end
Perform the following configuration steps after the basic DCC configuration is
implemented. As shown in the following figure, a local interface receives a call
from a single remote end (the picture components of inverse color represent the
routers irrelevant with the networking):
Figure 227 An interface receiving a call from a remote end
if0
Local end
(Single interface)
Router
Configuring DCC
if1
Remote end
(Single interface)
Command
dialer enable-circular
dialer number [ dial-number ]
undo dialer number
command. No dialer number for calling
if1
Remote end A
(Single interface)
Router
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