TT meaning in Telecommunication ?

Answer: What is Touch Tone mean?

Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers. DTMF was first developed in the Bell System in the United States, and became known under the trademark Touch-Tone for use in push-button telephones supplied to telephone customers, starting in 1963. DTMF is standardized as ITU-T Recommendation Q.23. It is also known in the UK as MF4.

The Touch-Tone system using a telephone keypad gradually replaced the use of rotary dial and has become the industry standard for landline and mobile service. Other multi-frequency systems are used for internal signaling within the telephone network.

reference

Full Form	Category
Topologically Tame	Academic & Science
Tutorial Test	Academic & Science
Terrestrial Time (replaced Ephemeris Time, ET)	Academic & Science
Table Top	Academic & Science
Terrazzo Tile	Academic & Science
Tree Trunk	Academic & Science
Tenure Track	Academic & Science
Transit Traverse	Academic & Science
Talk Time	Accounts and Finance
Turbo Twin	Business
Twin Tip	Business
Terra Energy Corporation	Business
Tested Telex	Business
Transtechnology Corporation	Business
Tarlington Training	Business
Typewriter Type	Business
Tension Technology	Business
Thermal Transfer	Chemistry
Test Tube	Chemistry
Thomas Thorpe, English publisher	Community
Tommy Thayer, musician	Community
Tennessee Tuxedo	Community
To Teacher	Community
Thermal Treatment	Community
Terrific Teacher	Community
Twice Told	Community
The Town	Community
Terrible Twos	Community
The Tube	Community
Tea Time	Community
The Tourist	Community
Triple Toon	Community
Tasty Tori	Community
Trivial Text	Community
True Tone	Community
ANSI Translation Type	Computer and Networking
Teletype Text	Computer Assembly Language
Techno Terminal	Computer Hardware
Trinidad and Tobago (TLD)	Computing
Typewriter Text	Computing
Trinidad and Tobago	Country Names
Thunder Token	Cryptocurrency
Transaction Table	Database Management
Tag Type	Database Management
Two Towers	Earth Science
Technology Transfer	Electronics
Teen Titans	General
Teh Tarik	General
Total Temporary	General
Temperment Tested	General
Temperament Tested	General
Tongue Twister	General
Translation Type	General
Throwback Thursday	General
Turk Telekom	General
Tamiya Toyota	General
Test Track	General
The two	General
Turbo Timer	General
Tutto Terreno	General
Translation Theories	General
Team Tournaments	General
Tops Tumblr	General
Turtle Tmurder	General
Takara Tomy	General
Touchdowns Trophies	General
Tamper Torx	General
Truck Temper	General
Taru Tinyman	General
Telecom Tom	General
Too Tiny	General
Telaio Tubolare	General
Tsim Tof	General
Terry's Toy	General
Toby Turner	General
Through Transport	General
Toastmasters Training	General
to tt	General
TT The	General
Trade Terminal	General
Tami tries	General
Text Tt	General
Timeless Truck	General
Trailer Trash	General
Team Training	General
Ton Truck	General
Too Turnt	General
The TT	General
Tray Table	General
Tummy Tuck	General
Tula Tokarev	General
Taxe Tobine	General
Topic To Text	General
Trinidad Tobago	General
Two Times	General
Twenty Two	General
Trophy Touring	General
Total Twat	General
Thumb Tip	General
Turing Tongue	General
Top Tunes	General
Toking And Tripping	General
Table Topics	General
Two Ts	General
Tokarev Tula	General
True Type	General
Turbo Touch	General
Tediosa Traduccion	General
Thane Tierney	General
Total Turkey	General
Turning Tree	General
T Tom	General
T Top	General
Template Toolkit	General
Twin Tread	Governmental
Touring Tursimo	Governmental
Tunnel Thruster	Governmental
Tube Type	Governmental
Travel Trailer	Governmental
Toronto Trek	Governmental
Twin Tube	Governmental
Twin Turbo	Governmental
Think Tank	Governmental
Telephone Technician	Governmental
Tubed Tyre	Governmental
Transitron	Governmental
Trailer Tow	Governmental
Top Touring	Governmental
TITTE	Indian Railway Station
T?kiye T?k?si	International
TeilThread	International
Tous Temps	International
Türkiye Türkçesi	International
Take That	Internet
Tractor Truckinjobs	Jobs
Township Treasurer	Jobs
Truth Table	Maths
Transverse Traceless	Maths
Tympanotomy Tubes	Medical
Too Tight	Medical
Thymol Turbidity	Medical
Tentative Targets	Medical
Transit Time	Medical
Tube Thoracotomy	Medical
Talking Therapies	Medical
Total Thyroidectomy	Medical
Treatment Technique	Medical
Tactile Tension	Medical
Thrombin time	Medical
Toe Touch	Medical
Top This	Messaging
Terrible Twins	Messaging
Totally Terrific	Messaging
Transfer Type	Military and Defence
Torpedo Tube	Military and Defence
Technical Test	Military and Defence
Task Type	Military and Defence
Terminal Transfer	Military and Defence
Tank Table	Military and Defence
Terrain Type	Military and Defence
Trouble Ticket	Networking
Torsion Twist	Physics Related
Toilet Tissue	Real Estate
Toledo Terminal Railroad	Regional
Tatar	Regional
Terminal Timing	Space Science
Thrust Termination	Space Science
Total Temperature	Space Science
Total Time	Space Science
Time-tagged	Space Science
Table-tennis	Sports
Track and Trail	Sports
Travel Team	Sports
Tourist Trophy	Sports
Touring Trophy	Sports
Tee Time	Sports
Tournament Terrors	Sports
Tutshill Tornados	Sports
Time Trial	Sports
Two Thousand	Stock Exchange
Trade Type	Stock Exchange
Turing Test	Technology
Turn Technology	Technology
Tiny Telephone	Telecommunication
Text Telephone	Telecommunication
Touch Tone	Telecommunication