User:Danhash/Telecom

• 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

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

• Media gateway

• Line card

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

• IMSI-catcher
• Stingray phone tracker

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

• Global Maritime Distress and Safety System
• Telegraphy

• Society for Worldwide Interbank Financial Telecommunication
• Electronic data interchange