Answering A Call Using Msn - NETGEAR XM128 ISDN Reference Manual

Reference Guide for the Model XM128 ISDN Digital Modem

Answering a Call Using MSN

When answering an incoming call, the call is first identified if the caller number matches the
Multiple Subscriber Number (MSN) settings.
The MSN supplementary service enables multiple ISDN numbers to be assigned to a single
ISDN BRI line. It allows the caller to select, through the public network, one or more distinct
terminals from a variety of terminal choices. The Model XM128 modem supports many different
communication protocols and two analog adapters.
each of the ports to an ISDN number.
Table 6-3. Commands for assigning ISDN numbers
Command Description
&ZI0=s Assigns the MSN phone number for X.75
&ZI1=s Assigns the MSN phone number for V.110
&ZI2=s Assigns the MSN phone number for V.120
&ZI3=s Assigns the MSN phone number for PPP, MPPP
&ZI4=s Assigns the MSN phone number for ISDN data,
protocol auto-detection
&ZI5=s Assigns the MSN phone number for PPP, MPPP
&ZI6=s Assigns the MSN phone number for Phone 2
&ZI7=s Assigns the MSN phone number for Phone 1
The command AT&ZI? can be used to display the MSN numbers. The factory default for these
numbers is UNASSIGNED.
6-6
Table 6-3 shows the commands used to assign
ISDN Overview