Configuring Isdn Caller Identification Callback - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide

1.2.6 Configuring ISDN Caller Identification Callback

In an ISDN environment, implementing DCC callback through the ISDN caller
identification function requires no authentication, nor are there other configurations
requirements.
I. Features of ISDN caller Identification callback
1) In the applications of ISDN caller Identification callback, the callback server can
process an incoming call in three ways, depending on the matching result of the
calling number and the dialer call-in command at the local end:
Denies the incoming call: The dialer call-in command has been configured, but
no match is found for the dial-in number and the configured dialer callers.
Accepts the incoming call: The dialer call-in command is not configured, or a
match is found for the dial-in number and a dialer call-in command configured
without the keyword "callback".
Calls back: The dialer call-in command has been configured, and a match is
found for the dial-in number and a dialer call-in callback command.
2) The match for the incoming number and the dialer call-in commands is determined
on the basis of right-most matching. The character "*" in the number represents
any characters. If multiple dialer call-in commands match the incoming number,
the following rules will apply for determining the best match:
Primary rule: The best match is the number with the fewest "
Secondary rule: The best match is the one that is found first.
3) Confirm the dialer call-in at server end is associated with the incoming call
In C-DCC, upon receiving an incoming call, the server searches for the dialer
call-in matching the incoming number in the dialer call-in commands configured
on the physical interface or the dialer interface to which the physical interfaces
belongs.
In RS-DCC, upon receiving an incoming call, the server searches for the dialer
call-in matching the incoming number in the dialer interfaces to which the physical
interface belongs.
II. Implementing ISDN caller identification callback in the C-DCC
1) Implement ISDN caller identification callback client in the C-DCC
Perform the following configuration in dial interface (physical or dialer interface) view.
Table 1-21 Implement ISDN caller identification callback (client configuration)
Configure the destination addresses and
dial number(s) for calling one (or more)
remote ends
Operation
3Com Corporation
1-27
Chapter 1 DCC Configuration
*
Command
dialer route protocol next-hop-address
[ mask network-mask-length]
dial-number [ autodial ]
".