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318 CHAPTER 20: DCC CONFIGURATION COMMANDS
When receiving an incoming ISDN call, the device with the dialer call-in
command configured first verifies that the caller is valid before processing the call.
If the remote PBX does not provide the calling number, the call is dropped directly.
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On a dial interface (physical or Dialer) configured with the dialer call-in
command, you need to configure the corresponding dialer route command or
dialer number command, making sure that the dial-number configured in the
command is the same as the remote-number configured in the dialer call-in
command.
Related command: dialer callback-center.
Example # Configure the device to place return calls for ISDN calling number 8810152.
<Sysname> system-view
[Sysname] interface bri 1/0
[Sysname-Bri1/0] dialer route ip 100.1.1.2 8810152
[Sysname-Bri1/0] dialer call-in 8810152 callback
dialer circular-group
Syntax dialer circular-group number
undo dialer circular-group
View Dial interface (physical) view
Parameter number: Number of dialer circular group, same as the one defined in the
interface dialer command. It ranges from 0 to 1023.
Description Use the
dialer circular-group command to assign the physical interface to a
dialer circular group in C-DCC approach.
Use the
undo dialer circular-group command to remove the interface from the
dialer circular group.
By default, a dialer circular group does not include any physical interfaces.
In C-DCC, you can assign a physical interface to a dialer interface by assigning it to
the dialer circular group associated with the dialer interface. While a physical
interface can belong to only one dialer interface, a dialer interface includes all
physical interfaces assigned to its associated dialer circular group. When placing a
call on the dialer interface, DCC selects the physical interface with higher priority.
Related command: interface dialer.
Example # Add interface Serial 2/0 and Serial 2/1 to dialer circular group 1.
<Sysname> system-view
[Sysname] interface dialer 1
[Sysname-Dialer1] quit
[Sysname] interface serial 2/0