User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 1
DDR Configuration
1-14
z General support (both ends have fixed network layer addresses and have
implemented RFC1570).
z Support when Client end needs dynamic distribution of network layer addresses.
z Support when only Server end has implemented RFC1570.
2) In ISDN environment, use ISDN calling line identification function to realize
callback.
IV. Configure ISDN calling line identification callback
To support ISDN calling line identification callback, a dialer caller command is provided
at ISDN interface.
1) The configurations when ISDN calling line identification callback is combined with
Legacy DDR.
Table DC-1-24 Use Legacy DDR to configure ISDN calling line identification callback
Operation Command
Enter the configuration mode of the designated dial
interface (used in global configuration mode)
interface interface-type interface-number
Perform callback or connection for an incoming call that
matches remote-number (used in the configuration mode
of the dial interface)
dialer caller remote-number callback
or dialer caller remote-number
Set delay time before callback (used in the configuration
mode of the dial interface)
dialer enable-timeout seconds
remote-number in dialer caller command refers to the telephone number of the remote
end.
2) The configurations when ISDN calling line identification callback is combined with
Dialer Profile.
Table DC-1-25 Use Dialer Profile to configure ISDN calling line identification callback
Operation Command
Enter the configuration mode of the logic dial interface
(used in global configuration mode)
interface dialer interface-number
Perform callback or connection for an incoming call that
matches remote-number (used in the configuration mode
of the dial interface)
dialer caller remote-number callback
or dialer caller remote-number
Set delay time before callback (used in the configuration
mode of the dial interface)
dialer enable-timeout seconds
3) Application features of ISDN calling line identification callback
i. An incoming call is processed in any of the following three ways based on the
matching of incoming call number and the locally configured dialer caller:
z Reject the incoming call—if dialer caller has been configured and the incoming call
number doesn’t have any matching dialer caller.
z
Accept the incoming call—dialer caller has not been configured, or the incoming
call number matches the dialer caller without the key word “callback”.
z
Callback—the incoming call number matches the dialer caller containing the key
word “callback”.