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