
Configuring Dial Services
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Using the Incoming Phone List for Callback Service
If the callback mode of your router is Server One Charge or Server One Charge
Call ID, the router uses incoming call filtering to identify the client, not PPP
authentication, which relies on the caller resolution table. Using incoming call
filtering, the router can maintain security while refusing the initial call from the
client to save the client phone charges.
When the server uses incoming filtering, it relies on the incoming phone number
to identify the client. When the server receives the call from the client, it matches
the client’s phone number with a phone number and circuit number in the
incoming phone list. The circuit number identifies the circuit that the server uses
to place the outgoing call back to the client.
Using the BCC
To use the callback modes Server One Charge and Server One Charge Call ID,
you specify a circuit name after you specify a phone number. This command is
optional.
To add a phone number and configure a circuit name, navigate to the
isdn-in-phone-list prompt and enter:
in-phone-number <
number
> circuit-name <
name
>
number
is a numeric string, up to 25 characters, that represents the incoming
phone number.
name
is the name of an available local demand circuit that corresponds to the
incoming phone number. The server uses this circuit to call back the client.
For example, to add the phone number 1234567 and specify the callback circuit
to-Boston, enter:
isdn-in-phone-list#
in-phone-number 1234567 circuit-name to-Boston
Remember, you must also enable incoming call filtering. For instructions, see
“Enabling Incoming Call Filtering” on page 11-8.
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