User:Danhash/Telecom

Voice Signaling

 * QSIG – ISDN-based signalling protocol
 * Q.931 – ISDN signalling protocol. Most common D-channel protocol.
 * DSS1
 * Media Gateway Controller
 * Session Initiation Protocol
 * H.323
 * Signaling gateway

SS7 and related subjects

 * Signalling System No. 7
 * High-speed link
 * Signalling Connection Control Part

VoIP – Other

 * Media gateway

Telecom hierarchy

 * Line card

Technologies

 * IEEE 802.1Q – VLAN tagging
 * H.450.3 – Technology to reduce call legs on forwarded calls

Surveillance

 * IMSI-catcher
 * Stingray phone tracker

Old

 * Telex
 * Teleprinter
 * Radioteletype
 * Category:History of telecommunications in the United States

Radio

 * Global Maritime Distress and Safety System
 * Telegraphy

Other

 * Society for Worldwide Interbank Financial Telecommunication
 * Electronic data interchange