ITU-T H.248-2000
Gateway control protoco Study Group 16

Standard No.

ITU-T H.248-2000

Release Date

2000

Published By

International Telecommunication Union (ITU)

Latest

ITU-T H.248-2000

Scope

Recommendation H.248 defines the protocols used between elements of a physically decomposed multimedia gateway, used in accordance with the architecture as specified in Recommendation H.323. There are no hctional differences from a system view between a decomposed gateway, with distributed sub-components potentially on more than one physical device, and a monolithic gateway such as described in Recommendation H.246. This Recommendation does not define how gateways, multipoint control units or interactive voice response units (IVRs) work. Instead it creates a general framework that is suitable for these applications. Packet network interfaces may include P, ATM or possibly others. The interfaces will support a variety of SCN signalling systems, including tone signalling, ISDN, ISUP, QSIG and GSM. National variants of these signalling systems will be supported where applicable.

ITU-T H.248-2000 Referenced Document

• ITU-T H.225.0-1999 (WITHDRAWN) Call Signalling Protocols and Media Stream Packetization for Packet-Based Multimedia Communication Systems - Series H: Audiovisual and Multimedia Systems - Infrastructure of Audiovisual Services - Transmission Multiplexing and Synchronization
• ITU-T H.235-1998 Security and Encryption for H-Series (H.323 and other H.245-Based) Multimedia Terminals; Series H: Audiovisual and Multimedia Systems - Infrastructure of Audiovisual Services - Systems Aspects (Study Group 16; 39 pp)
• ITU-T H.245-1998 Control Protocol for Multimedia Communication - Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services - Communication Procedures (Study Group 16; 267 pp)
• ITU-T H.246-1998 Interworking of H-Series Multimedia Terminals with H-Series Multimedia Terminals and Voice/Voiceband Terminals on GSTN and ISDN - Series H: Audiovisual and Multimedia Systems - Infrastructure of Audiovisual Services - Communication Procedures (Study Group
• ITU-T H.323-1999 (WITHDRAWN) Packet-Based Multimedia Communications Systems - Series H: Audiovisual and Multimedia Systems - Infrastructure of Audiovisual Services - Systems and Terminal Equipment for Audiovisual Services Study Group 16; 129 pp
• ITU-T Q.763-1999 Signalling System No. 7 - ISDN User Part Formats and Codes - Series Q: Switching and Signalling - Specifications of Signalling System No. 7 - ISDN User Part (Study Group 11)
• ITU-T Q.765-2000 Signalling System No. 7 - Application Transport Mechanism - Series Q: Switching and Signalling Specifications of Signalling System No. 7 - ISDN User Part Study Group 11
• ITU-T Q.931-1998 ISDN user-network interface layer 3 specification for basic call control Study Group 11

ITU-T H.248-2000 history

• 2000 ITU-T H.248-2000 Gateway control protoco Study Group 16