telephony

video-telephony

still picture video-telephony

voice-frequency

voice-frequency signal

speech current

telephone frequency

sub-telephone frequency

super-telephone frequency

complex sound spectrum

amplitude sound spectrum

phase sound spectrum

power sound spectrum

loudness

logatom

consonant combination

acoustical speech power

peak speech power

volume (in telephony)

speech circuit (in a telephone set)

(telephone) transmitter

carbon (telephone) transmitter

telephone receiver

(telephone) earphone

(telephone) earcap

(telephone) loudspeaker

handset

differential coupler (in a telephone set)

hybrid transformer

anti-sidetone device

signalling circuit (in a telephone set)

switch hook

(call) signal generator

call indicating device

(telephone) bell

magneto (telephone) bell

trembler bell

harmonic telephone ringer

buzzer (in a telephone set)

tone ringer

dial

rotary dial

key pad

multifrequency key pad

decadic key pad

call maker

alarm set (in telephony)

signalling current (in telephony)

feeding current (of a telephone station)

central battery (in telephony)

local battery (in telephony)

central battery feeding (telephony)

central battery signalling (telephony)

transmission bridge (in telephony)

feeding bridge

range extender

voltage booster

long line adapter

telephone set

telephone station

automatic (telephone) set

rotary dial (telephone) set

push-button (telephone) set

viewphone set

coin box set

long line (telephone) set

regulated (telephone) set

loudspeaking (telephone) set

hands free (telephone) set

intercommunication station

explosion proof (telephone) set

key telephone set

subscriber's check meter

telephone answering set

telephone answering and recording set

musical hold device

conference amplifier

acoustic coupler (for data transmission)

acoustic shock suppressor (in telephony)

telephone network

public telephone network

private telephone network

(public) switched (telephone) network

switching centre

private wire (telephone) circuit

(telephone) circuit

private circuit

(telephone) subscriber

calling party (in telephony)

called party (in telephony)

subscriber number

directory number

local service area

local switching centre

switching entity

local switching entity

manual (telephone) operation

manual (telephone) exchange

automatic (telephone) operation

automatic (telephone) service

automatic (telephone) exchange

semi-automatic (telephone) operation (in international service)

semi-automatic (telephone) operation (in national service)

private (telephone) installation

private (telephone) exchange

private automatic exchange

private manual exchange

private branch exchange

private automatic branch exchange

private manual branch exchange

internal (telephone) system

manager and secretary service

call attempt

connection

(complete) connection

call

unhooking

off-hook call

on-hook call

hanging up

off-hook

on-hook

dial tone delay

dialling (in telephony)

dialling duration

post-dialling delay

calling duration

setting-up time

ringing (in telephony)

successful call attempt

call duration

conversation time

effective call

local line network

subscriber's (telephone) line

exclusive exchange line

party line

shared-service line

selective ringing (in telephony)

out-of-area subscriber's line

main line

PBX group

PBX hunting

preferential (PBX) access line

extension line

tie line

pair gain system

line concentrator (in a local line network)

switching entity area

main distribution frame

cross-connection point

distribution point

main cable

distribution cable

link cable

direct service area

cross-connection area

subscriber's lead-in

(telephone) line density

spare pair

manufacture's spare pair

(subscriber's line) rigid network

(subscriber's line) flexible network

multiple teeing

(local line) network with link circuit

subscriber's (telephone) station

public call office

acoustic hood

telephone booth

telephone stall

subscriber's main station

extension

completely restricted extension

transmission performance (in telephony)

impairment (of signal quality)

crosstalk

disturbing channel

disturbed channel

intelligible croostalk

unintelligible crosstalk

babble

signal to crosstalk ratio

crosstalk attenuation

near-end crosstalk attenuation

far-end crosstalk attenuation

near-end crosstalk

far-end crosstalk

echo (in telephony)

multiple echo

mutilation (of speech)

ambient noise (in telephony)

room noise

acoustic shock (in telephony)

sidetone

speech sidetone

ambient noise sidetone

opinion score (d'un poste téléphonique)

mean opinion score

volume meter

vu meter

(american) volume unit

(american) reference volume

ARAEN speech voltmeter

psophometric voltage

psophometric electromotive force

psophometric power

psophometer

crosstalk meter

sound-level meter

acoustic coupler (in telephonometry)

artificial ear

artificial mouth

artificial voice

local (telephone) circuit

subscriber system (in transmission planning)

sending system (of a complete telephone connection)

receiving system (of a complete telephone connection)

fundamental reference system of the CCITT

european master reference for telephone transmission

reference apparatus for the determination of transmission performance ratings

reference system for the determination of AEN

new fondamental system for the determination of reference equivalents

working standard (in telephonometry)

primary system for the determination of reference equivalents

normal speech power for voice-ear measurements

reference speech power for the measurement of AEN

intermediate reference system

telephonometry

repetition rate (in telephony)

immediate appreciation percentage

intelligibility (index)

articulation

word articulation

syllable articulation

logatom articulation

sound articulation

sentence articulation

phonetically balanced word list

transmission performance rating

articulation reference equivalent

reference equivalent

sending reference equivalent

receiving reference equivalent

corrected reference equivalent

objective reference equivalent meter

crosstalk reference equivalent

echo reference equivalent

sidetone reference equivalent

relative equivalent

relative equivalent for sending

relative equivalent for receiving

loudness rating

conversation test

hypothetical reference connection (for telephony)