Telephony Flashcards
a series of digits or characters that must be entered into a system a system such as a telephone or other communication terminal to gain access is known as?
access code
a location identifier enabling Messages to be sent and received to a particular person or station is known as?
address
A method of signaling where the amplitude or frequency of the electrical signal is analogus to this source is known as?
Analog transmission
A wearing board used in my girl computers and many computer is to revive connections between logic memory and input/output modules is known as
backplane
The difference in hurts between the highest and lowest frequency of a group or band of frequencies is known as?
bandwidth
Refers to the capability of fully charged battery cells to carry the power load of a system when commercial power fails and the primary sources in operative is known as?
Battery backup
A data communications transmission rates based on a number of signal level changes per 2nd regardless of the information content of those signals is known as
Baud rate
I unit of information and by unary which represents 1 of 2 States of information either a 1 or 0 as Opposed to a decimal figure is referred to as
bit
A storage device within a computer system that compensates for a difference in th rate of data flow when transmitting data from one device to another is known as
buffer
a _____ is usuallyy 8 bits and represents a single character.
byte
A printed circuit board with a special connector edge that allows the board to be plugged into a slot on a backplane as called ?
card
Subscribers to a blank that are behind the same system can All call each other as if they were extensions allowing for transferring of calls
Century services
What does COS stand for
Class of service
What does DTMF stand for
Dual tone multi frequency
A key system that replaces electro mechanical really controls with electronic devices 4 or 6 conductors per telephone replace bulky multiple cables is known as
EKTS
An independent federal agency Responsible for regulating inner state and foreign but not enter state telecommunications is known as
Federal com
A trunk connect in a subscriber’s telephone equipment to a central office other than the local central office is
Foreign exchange trunk
The term for a time period and closing of character a character group or bit group and involved in digital Carrier system is a what
frame
The number of cycles completed per unit of time measured in hertz
Frequency
Our mix signals and advantage or disadvantage with digital transmission
Addvantage
What is the factor by which LEC’s determine responsibility for repair and Maintenance
D mark
What is the type of signaling and telephone switching systems that uses direct current in a ground return path to indicate a subscriber’s request for service
Ground start
A guideline platform for upgrading global telephone communications to a completely digital switch network simultaneously transmission of voice and data over multi plexed communication circuit is?
Integrated services digital network ISDN
The connection between the public switched network and customer promise equipment and/or a generic term for firms that sell?
Interconnect
To momentarily D press and release a telephone hook switch and order to signal a request for features such as conference or transfer is known as?
hookflash
Cabinet which contains the control module associated with the key telephone systems Usually electro mechanical really units or elektronik printed circuit boards
Key service unit KSU
One of the local telephone Exchange areas which serve to distinguish local phone services from long distance service is
interlata
A switch located within a Telephone set alerts the switching he quit ment that a collar has initiated a call or that the collar as Finnish and the parties have. It operates when the user removes the handset from the telephone or returns and set to the phone
Hook switch
Carriers who provide telephone service within their franchise area are known as LEC’s what does this sand for
Local exchange carriers
A Junction Box on the side of a house where tip and ring connects to the outside network is known as?
Access point
A device that combines 2 or more signals for transmission over the same path is known as
multiplexer unit MUX
And data communication a bit added to a group of bits so that the number of ones and the group is always even or odd used on a bite by bite basis to verify the integrity of data transmissions the receiving end of a transmission must be prepared for the same type of _____ that is being sent
parity
a unit used for temporary storage of data a storage element which may be written into or read out From any memory address or at any point in time is known as
Random access memory RAM
A special program built into a system to control the hardware and software resources and to supervise the running of other programs is known as
Operating system
Structure which is mounted to the entrance facility and/or equipment Room to guard against damage to the CO equipment from outside sources such as power surges or lightning is known as
Protecons
An application of ISD and which by combining 2 or more B channels allows improved motion for video is known as
Video conference
The point of access into a communication system computer network or other elektronik device is known as
Port
An individual person or company who has a telephone number and their name is known as
Subscriber
______Is a service where a subscriber can initiate Inner exchange communications over a dedicated _____ Trunk to any other subscriber in the National network geographically located within the distance selected by the collar the customer is not build per call but by a certain amount per month for a given number of hours of service with overtime charges at a reduced rate
Watts trunk
The part of the telephone microphone which convert sound waves of the speakers into electrical energy is known as
Transmitter
the part of th e telephone which converts the electrical energy back to voice is known as?
receiver
Who is responsible for the invention of the telephone
Alexander G bell
What are 3 elements that remain consistent with every telephone network
NDA, CO, end user number
What company managed the telephone network across the US
AT&T
The abbreviation FCC represents
Federal communications commission
A direct connection between a switching machine and the end user’s phone or terminating device is called a What circuit
Line circuit
What is the main difference with ADI D trunk compared to loop start and ground start trunks
PB X provides battery for the seo
What is the actual concept behind ISDN
A guideline for platform for upgrading telephone communications
Integrated service digital network is not meant to be a product or a service explain
A standard or procedure to a constant and proving system
