Talk Time
TAPI
TCP/ IP
Technical Support
Telecommuting
Teleconferencing
Telemarketing
Telephone Service Factor (TSF)
Telephone Service Representative (TSR)
Telephony
Telephony Services Application Programming Interface (TSAPI)
Third-party logistics
Threshold
Ticketing System
Tie Line
Time Series Approach
Time Speech Recognition
Tokenization
Toll Free
Top Level Organization (TLO)
Total Delay
Total Handle Time
Traffic Control Center
Traffic Engineering
Traffic Study
Training delivery
Transmission Control Protocol/Internet Protocol (TCP/ IP)
True Calls Per Hour
Trunk Group
Trunk Hold Time
TSAPI
TTS
Tumblr
Turing Test
Turnover
Tweet
Twitter
Twitter Complaint
Twitter Direct Message (DM, @Reply)
Twitter Follower/ Following
Twitter Retweet (RT, @Reply)
