Farallon Communications 612 - Manual (Page 154)

GL-2 Netopia ISDN Modem User’s Guide
CPE: Customer Premise Equipment. This is the ISDN equipment
provided by the customer to connect to an ISDN line. The Netopia
ISDN Modem is considered Customer Premise Equipment.
D channel: Delta channel. A 16 Kbps or 64 Kbps ISDN inter face
which carries signaling messages to control the B channels. It can
also carr y data in the form of X.25.
DEMARC: Demarcation Point. This is the point on the customer
premises where the line from the telephone company meets the
customer’s wiring. From this point, the customer is responsible for
the remaining in-house wiring.
DMS-100: This is a digital switch used by many telephone
companies and designed by Nor thern Telecom. This switch provides
voice, data, and ISDN ser vices and is capable of running either
Custom or National ISDN (NI-1) software.
DN: Director y Number. This is the ISDN telephone number and is
required to call another ISDN site or Internet Ser vice Provider.
DNS: Domain Name Ser ver. This is a computer that resolves
Internet names (timbuktu.farallon.com) to IP Addresses
(163.176.4.43) to communicate over the Internet.
Dynamic Bandwidth Allocation: A feature that allows you to place a
voice call from a device that is attached to one of the analog device
por ts while a Multilink PPP call is active. When you initiate the
phone conversation, the modem disconnects one of the B channels
and uses it for the voice call.
IP: Internet Protocol. See TCP/IP.
ISDN: Integrated Ser vices Digital Network. This is a high-speed
digital line providing a fast and reliable connection to the Internet
through the Netopia ISDN Modem.
ISP: Internet Ser vice Provider. This is a company that provides ISDN
access, director y numbers, and TCP/IP addresses for connecting
the Netopia ISDN Modem to the Internet.