Telos Zephyr Xstream User Manual page 368

USER'S MANUAL
business (and the right to use the AT&T name on telephone sets) to V‐ Tech. V‐ Tech is using the
AT&T name and line as their high‐ end line. Lucent's PBX division was spun off in 2001 as AVAYA.
MCLD‐ Modifying Calling Line Disconnect The parameter on the Lucent 5ESS switch that
determines if CPC is active. Should be set to "Yes" if CPC is required. See CPC
MSN/DN 1&2 (Zephyr Xstream) The Telco menu selections on the Xstream where the MSN
(Euro & INS 64 ISDN) or 7 digit Directory Numbers (USA ISDN) can be entered during set up. The
Zephyr Xstream generally does not require that these numbers be present. See Directory
Number and MSN.
MSN‐ Multiple Subscriber Number (Euro ISDN) This is a telephone number associated with an
ETS 300 BRI line. Providers of ETS 300 often give you three MSNs with a BRI, although additional
MSNs can be purchased. An ISDN terminal will "ring" (provide an alerting signal) only when calls
are made to the MSN (or MSNs) entered in that terminal. If a terminal has no MSNs entered, it
will "ring" whenever there is a call to any of the MSN's on that BRI. See ETS 300 and DN.
National ISDN (USA & Canada) The US "standardized" multi‐ platform ISDN protocol. The first
version is National ISDN‐ 1. As of mid 1996 National ISDN‐ 2 has been implemented in some
areas and is fully backward compatible with National ISDN‐ 1.
NCTE – Network Channel Terminating Equipment. NCTE is a general term that can be applied to
a CSU or NT1 or other equipment terminating a digital line at the customer's premises. In many
countries, the NCTE is provided by the Telco. The USA is not one of those countries.
Network Channel Terminating Equipment See NCTE.
Network Termination See NT
NIUF‐ National ISDN User's Forum A user's group formed under the National Institute of
Technology (NIST) in the USA. The NIUF is a neutral forum where the switch manufacturers and
Telcos can get input from users and CPE manufacturers regarding the implementation of
National ISDN. Among NIUF's successful projects have been the IOC ordering codes. Their web
page is at http://www.niuf.nist.gov/ . See National ISDN.
Nortel Manufacturer of the DMS‐ 100 switch as well as many other pieces of telecom and
network equipment. Now called Nortel Networks.
Northern Telecom The Canadian company which was once the manufacturing arm of Bell
Canada (it was called Northern Electric back then). Now called Nortel Networks. See Nortel.
NT ‐ Network Termination The electrical and protocol specifications for the user end of an
ISDN line. See also LT.
NT‐ 1 An alternative expression for NT1. See NT1
NT1‐ Network Termination Type 1 The termination at the customer premises of an ISDN BRI
circuit. The NT1 performs the role of line termination of the "U" interface and Codes/Decodes
from the line's 2B1Q coding scheme. The customer end of the NT1 interfaces using the "S" or
"T" interface. The NT1 is frequently part of the "Terminal Adapter" and is built‐ in to Zephyr
Xstream, Zephyr, ZephyrExpress, Telos TWO and TWOx12 systems sold in the USA & Canada.
See also NCTE
NTBA‐ Network Termination Basic Access The term used for NT1 in some countries. See NT1.
See also NCTE.
Appendix 10 – Glossary 356