Megaco (Media gateway control)

or perhaps small-to-medium enterprise (SME) applications up to 50 or so extensions. A media gateway also can be networked with a larger media server, media manager, or communication manager that serves a larger regional office. See also IPBX. 3. In H.323-compliant multimedia networks, a gateway is an optional element used for various levels of protocol conversion.The gateway serves as a protocol converter between devices and networks that have native H.323 capability and those that do not.The gateway also may translate between audio, video, and data formats, and may perform signaling conversions between the H.225

packet protocol and external protocols such as SS7 and Q.931. Alternatively, signaling conversions may be performed by gatekeepers, call processors, or session border controllers. See also H.225, H.323, multimedia, network, packet, protocol, protocol converter, Q.931, session, and SS7.

• Cat 5e (Category 5 enhanced)
• Cat 6 (Category 6)
• Cat 7 (Category 7)
• .cat (.Catalan)
• Cat (Category)
• Category (Cat)
• CATV (Community Antenna TeleVision)
• C band
• C-Band (Conventional Band)
• CB (Citizens Band) Radio Service
• CB (Citizens Band) Radio Service
• CB (Citizens Band) Radio Service
• CBDS (Connectionless Broadband Data Service)
• CBR (Constant Bit Rate)
• CCIR (Comité consultatif international des Radiocommunications)
• CCITT (Comité consultatif international télégraphique et téléphonique)
• CCK (Complementary Code Keying)
• CCLC (Common Carrier Line Charge)
• CCPA (Cable Communications Policy Act of 1984)
• CCS
• CCS7 (Common Channel Signaling System 7)
• ccTLD (country code Top Level Domain)
• CCTV (Closed Circuit TeleVision)
• cd
• CDDI (Copper Distributed Data Interface)