telephony

Long-distance calling technology

Telephony is the technology and systems for transmitting voice communication over distances—originally through wired networks, now including mobile and internet-based systems.

The term covers both the technical infrastructure and the practice of using it: The company handles all our telephony needs.

VoIP (voice over internet protocol) has largely replaced traditional telephony in business settings.

landline

dial

Graduated circular indicator

switchboard · operator · long-distance · directory · engaged · busy · hold · extension · rotary · corded

voice

call

Contact by phone

hold music · caller ID · call waiting · three-way calling · conference call · intercom · paging · IVR · voicemail · tone

infrastructure

PBX

Private branch exchange

circuit · fiber-optic · PSTN · trunk · exchange · central office · ISDN · T1 · interconnect · tandem

voip

VoIP

Calls over broadband

  • SIPVoice call initiation protocol
  • codecData compression algorithm
  • latencyDelay in system response

jitter · compression · softphone · Skype · call quality

mobile

cellular

Composed of small units

  • 4GFourth-generation mobile technology
  • 5GCurrent mobile network standard
  • LTEWireless broadband standard

roaming · base station · antenna · SIM card · handoff · coverage · signal strength · cell tower · GSM · CDMA

history

Alexander Graham Bell

Telephone's Scottish-born creator

touch-tone · answering machine · AT&T · Ma Bell · pay phone · collect call

wireless

Wi-Fi calling

Cellular calls over broadband

airwaves · hotspot · range · interference · frequency band

Categories
Opposites
communication modality

telephonyvideo conferencing

Real-time audiovisual communication online

text messaging · telegraphy · written correspondence · visual communication · sign language

technological era

telephonypostal service

National mail delivery system

letter writing · messenger service · smoke signals · carrier pigeon · town crier

communication distance

telephonydirect speech

Exact quoted utterance

Phrases
Family

telephone, telephoned, telephones, telephoning, telephonic, telephonist, radiotelephone

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G