Nortel i2021 Series User Manual

Nortel i2021 Series User Manual Manual pdf 73 page image

i2021 ISDN Teleset67GLOSSARYThe definitions in this Glossary refer to the i2021 Teleset only.Bearer Service - also known as Bearer Capability. The type of service thatcan be accessed on the “B” channel. Typical Bearer Services arevoice, data, and audio,Call Appearance (CA) - A hardkey on the Teleset that is programmed forvoice communication. A CA may have a unique Directory Number, orit may be the same telephone number that appears on other keys orother Telesets.Call Appearance Call Handling (CACH) - Pronounced “cash”- Refers to atranslation in the Central Office switch. CACH is the recommendedsetting for the i2021.Customer Premises Equipment (CPE) - Devices residing at or on thecustomers’ premises. The i2021 Teleset is CPE.CENTREX - A business telephone service offered by the local telephonecompany. CENTREX offers many Electronic Key Telephone featuresto enhance the operation of the i2021.Directory Number (DN) - Also known as a telephone number.Electronic Key Telephone Service (EKTS) - A feature that allows theTeleset to have Multiple Call Appearances (MCA) and Shared CallAppearances (SCA).Feature Activator/Indicator - A softkey or a programmable hardkey used toaccess a specific switch feature, i.e., Conference, Drop, Transfer, CallForward, Call Park, Inspect, etc.ISDN Ordering Code (IOC) - This is a code supplied by a terminalmanufacturer to be used by the telephone company in provisioning theISDN service. (See TP Packages)Multiple Call Appearance (MCA) - Additional Call Appearances of thesame Directory Number.Network Termination 1 (NT1) - A piece of CPE required to interface “S”interface devices with the “U” interface from the telephone company.Non-Volatile (memory) - Information that is stored in the telephone that will