User`s guide

• LAPD

ISDN Answering

Configuration - Network > Interfaces > ISDN> ISDN Answering

This page allows you to configure the ISDN interface to receive incoming calls.

Button:- Load answering defaults

Clicking this button resets the default answering PPP interface (PPP 0) to the factory

answering defaults.

Description:

This parameter allows you to enter a name for this PPP instance, to make it easier to

identify it.

Only accept calls from calling numbers

ending with

This parameter is used to restrict the range of numbers from which ISDN will answer

incoming calls, i.e. the ISDN interface will only answer a call if the trailing digits of the

calling number match what is specified by this parameter. For example, if this parameter

was set to 3, incoming calls from 1234563 would be answered but calls from 1234567

would not.

with ISDN MSN ending with

If answering is disabled this parameter is not used.

This parameter provides the filter for the ISDN Multiple Subscriber Numbering facility. It

is blank by default but when set to an appropriate value on an answering interface, it will

cause the unit to answer incoming calls to only telephone numbers where the trailing

digits match the value selected. For example, setting this parameter to 123 will prevent

the unit from answering any calls to numbers that do not end in 123.

with ISDN sub-address ending with

If answering is disabled this parameter is not used.

This parameter provides the filter for the ISDN sub-address facility. It is blank by default

but when set to an appropriate value on an ISDN answering interface, it will cause the

unit to answer incoming calls only to ISDN numbers where the trailing digits match the

Sub-address value. For example, setting the this parameter to 123 will prevent the unit

from answering any calls to numbers that do not end in 123.

Use the following local IP configuration

Local IP Address:

This is the IP address of the unit’s ISDN answering interface. Set this field to the desired

local IP address.

Attempt to assign the following IP configuration to remote devices

Set this parameter if it is required that the remote system have an address supplied. An

attempt to negotiate an IP address from the IP address pool will be made. Generally, this

parameter is enabled for incoming connections.

This checkbox opens to show the following parameters:-

Assign remote IP addresses from a.b.c.d to a.b.c.d