telephony
field of technology involving the development, application, and deployment of telecommunication services
geographic split method
portion of an existing area code given a new one, with a new geographic boundary separating the two
digital telephony
use of digital electronics in the provision of digital telephone services and systems
speaking tube
air pipe through which speech can be transmitted over an extended distance
overlay plan
method of area code relief for an exhausted code
Continuous transmission mode
Telecommunications signal mode
G-LEX
Internet phone service
Voice short codes
type of telephone number in the UK
Generic Access Network
protocol that extends mobile voice, data and multimediam applications over IP networks
signaling
the electronic exchange of information required to set up a telecommunications connection
extension
term in telephony
landline telephone
telephone with a telephone wire; phone that uses a metal wire or fibre optic telephone line for transmission as distinguished from a mobile cellular line, which uses radio waves for transmission
Radio Interface Layer
layer in an operating system which provides an interface to the hardware's radio and modem on a smartphone and other similar devices
radiotelephone
communications system for transmission of speech over radio