3Com MSR 50 Series Configuration Manual page 163

Configuring an interface to receive calls from multiple remote ends
As shown in the following figure, an interface at the local end receives calls from
multiple remote ends (the components in inverse color represent the routers
irrelevant to the networking):
Figure 18 Network diagram for an interface to receive calls from multiple remote ends
if0
Local end
(Single
interface)
In this scenario, a single local interface interface0 (if0) receives DCC calls from
multiple remote interfaces including if1 and if4. As only one interface is involved
at the local end, you may configure DCC parameters for the interface by
configuring a dialer circular group. In addition, you may configure PAP or CHAP
authentication.
After completing the basic DCC configurations, follow these steps to configure an
interface to receive calls from multiple remote ends:
To do...
Enter system view
Enter dial interface (physical
or dialer) view
Enable C-DCC
Configure the interface to
receive calls from a remote
end (if multiple remote ends
are involved, repeat this step)
Configuring multiple interfaces to place calls to one or multiple remote
ends
As shown in the following figure, multiple interfaces at the local end place calls to
one or multiple remote ends (the components in inverse color represent the
routers irrelevant to the networking):
Remote end A
(Single/Multiple
if1
interfaces)
if2
Remote end B
(Single/Multiple
interfaces)
if3
Remote end C
if4
(Single/Multiple
interfaces)
Use the command...
system-view
interface interface-type
interface-number
dialer enable-circular
dialer route protocol
next-hop-address [ mask
network-mask-length ] [ user
hostname | broadcast ] *
DCC Configuration 163
Remarks
--
--
Required
Disabled by default
Optional
If the dialer route ip
next-hop-address user
hostname command is
configured at a called end,
the called party will use the
specified next hop address
and hostname to authenticate
the calling party.