talking time
On mobile devices: the maximum duration of an active call connection until the device battery goes flat
TAPI
An interface in the ICT system that enables computer-based control of telephony functions to be used
TFT colour display
A TFT display is a special kind of LC (liquid crystal) display which is better able to reproduce colours
TFTP
A very simply transmission protocol that only supports the reading of or writing to files
ticket
A job number (reference), generated during a support request and used to manage communications
TLS
Encryption protocol for secure data transfer in the Internet (previously called SSL)
trojan
Disguised as legitimate or harmless files, they tempt users to click on them and install malware on their PC
two-factor authentication
Proof of identity of a user by means of a combination of two different and, in particular, independent components, namely knowledge (e.g. PIN code) and possession (e.g. smartphone with biometrics)