R0106-HP MSR Router Series Layer 2 - WAN Configuration Guide(V7)

169
Ste
p
Command Remarks
7. Configure a dial string for
callback.
• (Method 1) If the dial string for
callback is determined according to
the authenticated username, configure
a callback user and a dial string as
follows:
a. local-user user-name class
network
b. service-type ppp
c. authorization-attribute
callback-number
callback-number
• (Method 2) If the dial string for
callback is determined according to
the configured username, configure a
dial string as follows:
dialer route ip next-hop-address
[ mask network-mask-length ]
[ vpn-instance vpn-instance-name ]
dial-number [ interface interface-type
interface-number ] [ broadcast | user
hostname ] *
Use either method.
If the network address
used by a callback client
is dynamically assigned,
the server cannot use the
dialer route command to
associate the callback
dial string with the
network address of the
client. In this case, use the
authorization-attribute
callback-number
command to associate the
dial string with the client
username.
Configuring the callback server by using bundle DDR
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter dialer interface view.
interface dialer number N/A
3. Enable the interface to accept
callback requests.
ppp callback server
By default, an interface does not
accept callback requests.
4. Configure the interface to
determine the dial string for
callback according to the
authenticated username.
dialer callback-center dial-number
By default, callback is not
performed.
5. Exit to system view.
quit N/A
6. Create a local user and enter
local user view.
local-user user-name N/A
7. Configure a dial string for
callback.
service-type ppp
authorization-attribute
callback-number callback-number
By default, no dial string for
callback is associated with a local
user.
Configuring ISDN caller number callback
This feature allows the device to screen incoming calls based on the ISDN caller number and determine
whether to accept a call or initiate a callback according to the screening results.
A callback is a return call from the call receiver (server) to the call initiator (client). The client initiates a
call, and the server determines whether to initiate a callback to the client. If yes, the server disconnects
the call and places a return call to the client.