Configuration Restrictions And Guidelines; Configuring A Callback Server By Using Traditional Ddr; Configuring A Callback Server By Using Bundle Ddr - HP MSR Router Series Wan Access Configuration Manual

Rightmost matching compares the call-in number with the configured numbers digit by digit,
starting with the rightmost character. Asterisks (*) are used as wildcards to match any character.
The number of digits to be compared is the number of digits of the shorter number. For example,
compare the call-in number 12345 with the configured number 345, and the two numbers match
because the three rightmost characters match. If a dial-in number matches multiple dialer call-in
commands, the best match is selected in the following order:
The one with the fewest asterisks (*).
The one that is found first.
3. Depending on the match result, the server can process an incoming call in one of the following
ways:
Deny the incoming call—One or multiple dialer call-in commands exist, but no match is found.
Accept the incoming call—The dial-in number matches a dialer call-in command without the
callback keyword or if no dialer call-in command exists.
Callback—The dial-in number matches a dialer call-in command with the callback keyword.

Configuration restrictions and guidelines

When you configure ISDN caller number callback, follow these restrictions and guidelines:
Configure the dialer route or dialer number command on a dialup interface where the dialer call-in
•
command is configured with the callback keyword. To ensure correct callback, use the same value
for dial-number in the dialer route or dialer number command and remote-number in the dialer
call-in command.
• To leave enough time for a server to call back, set the holddown timer on the client at least 10
seconds longer than the holddown timer on the server. HP recommends that you set this timer to 5
seconds (the default) on the server and to 15 seconds on the client.

Configuring a callback server by using traditional DDR

Step
1. Enter system view.
2. Enter dialup interface view.
3. Configure the interface to
accept incoming calls from
the specified calling number
or to call back the specified
calling number.

Configuring a callback server by using bundle DDR

Step
1. Enter system view.
2. Enter dialer interface view.
Command
system-view
interface interface-type interface-number
dialer call-in remote-number [ callback ]
Command
system-view
interface dialer interface-number
189
Remarks
N/A
N/A
By default, calls are not
filtered by calling number.
Remarks
N/A
N/A