AT&T 585-300-903 Basic Call, Transfer, Basic Rate, Interface BRI, Baud Rate, Binary Digit, Bit

GL-4Glossary

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Basic Call	A switchhook-flash method used on AUDIX Standalone and many switches to send
Transfer	the AUDIX transfer command over analog voice ports.
Basic Rate	International standard protocol for connecting a station terminal to an Integrated
Interface (BRI)	Systems Digital Network (ISDN) switch. ISDN BRI supports two 64 Kbps
	information bearer channels (B1 and B2), and one 16 Kbps call status and control (D)
	channel (a 2B + D format). Also called Basic Rate Access.
Baud Rate	Transmission signaling speed (see ‘‘bps’’).
Binary Digit	Two-number notation that uses the digits 0 and 1. Low-order bits are on the right (for
(Bit)	example, 0001=1, 0010=2, and so forth). Four bits make a nybble; eight bits make a
	byte.
Blank Cartridge	One or more spare removable cartridges required to back up system information.
Block Service	Prevent use of a port, channel, or entire system through a fault or maintenance
	procedure.
Body	The part of AUDIX voice mail that contains the actual spoken message.
Boot (or	An activity that brings up (initialize) a system by loading programs from disk to
Reboot)	Feature Processor (FP) memory, activated by the Control Mode Menu (Function 5), a
	power up, or the Maintenance Interface (MI) toggle switch. Control Mode Menu
	(Function 6) does a partial reboot [the FP is restarted and the Data Base Processor
	(DBP) initialized].
Boot Filesystem	The filesystem selected during system initialization, either automatically or manually,
	that the system tries to load its initial programs from. The filesystem name is
	‘‘boot_f’’ for the active version and ‘‘boot_e’’ for the backup copy.
bps (bits per	The number of binary units of information (1s or 0s) that can be transmitted per
second)	second. Mbps refers to a million bits per second; Kbps refers to a thousand bits per
	second.
Buffer	Memory used to compensate for time differences in transmission by temporarily
	storing data.
Bulletin Board	See Information Service.
Bus	The circuitry that links the various AUDIX subsystems together. The major AUDIX
	buses are the Data Base Processor (DBP) or Versa-Module European (VME), S
	(System), TD (Time Division), and M (Memory) bus.
Business	The currently recommended terminal for AUDIX maintenance or system
Communications	administration.
Terminal (BCT)
Busy-	To remove an AUDIX device from service (make it appear ‘‘busy’’ or in use), and
Out/Release	later restore it to service (release it). The AUDIX data link, voice ports, or Voice
	Buffer (VB)/Time Division Bus Interface (TDBI) channels may be busied out if faulty
	or while maintenance tests are run.
Byte	A binary element string operated on as a unit and equal to eight bits.