공중 전화 회선(PSTN)을 거쳐 가입자 상호간이 화상 정보를 송수신하는 통신 장치.
The public switched telephone network ( PSTN ) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines, fiber-optic cables, m...
POTS remains the basic form of residential and small business service connection to the telephone network in many parts of the world. The term reflects the technology that has been...
Virtual Network Operators (VNOs) lease capacity wholesale from the PTOs and sell on telephony service to the public directly. See also [edit] Telephone service (disambiguation) References...
the telephone network. Here are a few examples of how 'landline telephone' can be used in... A virtual call center allows you to provide quality customer service, regardless of their...
Services Network — Circuit-mode 64 kbit/s bearer services — Service description, functional capabilities and information flows ISO/IEC 11579-1:1994 Information technology...
public telephone network. IMTS was the radiotelephone equivalent of land dial phone service. Introduced in 1964, it replaced Mobile Telephone Service (MTS) and improved on most MTS systems...
The Mobile Telephone System - Mobile telephone service (MTS) connects mobile radio telephones with other networks like public switched telephone networks (PSTN), other mobile telephones and communi...
A public switched telephone network (PSTN) provides digital video signals from a video information provider or digital service bureau to one or more of a plurality of subscriber premises. Administr...
This Inward Wide Area Telephone Service (InWATS) allowed calls to be made directly from anywhere in a predefined area by dialling the prefix 1‑800- and a seven-digit number. The system...