Draytek Vigor2820 Series User Manual page 189

ISDN Port
Country Code
D-Channel Mode
Own Number
Blocked MSN Numbers for
the router
MSN Numbers for the
Router
Vigor2820 Series User's Guide
Click Enable to open the ISDN port and Disable to close it.
For proper operation on your local ISDN network, you should
choose the correct country code.
It allows you to configure ISDN layer2 protocol as:
Point-to-Point - Configure ISDN port to use static TEI
(Terminal Endpoint Identifier).
Point-to-Multipoint - Configure ISDN port to use Dynamic
TEI.
Enter your ISDN number that you got from ISDN service
provider (To have such number, you have offer your request
from ISDN service provider first). Every outgoing call will
carry the number to the receiver.
Enter the specified MSN number into the fields to prevent
the router from dialing the specific MSN number
MSN Numbers mean that the router is able to accept only
number-matched incoming calls. In addition, local ISDN
network provider should support MSN services. The router
provides ten fields for MSN numbers. Note that MSN service
must be acquired from your local telecom operators. By
default, MSN function is disabled. If you leave the fields
blank, all incoming calls will be accepted without number
matching.
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