There are various resource control mechanisms used in Next-Generation Networks (NGN) such as
those described in [ITU-T Y.2111]. A policy control mechanism (like QoS resource control) is
described by this Recommendation. The mechanism itself may result in different control scenarios,
that are primarily dependent on dedicated user and customer premises equipment (UE, CPE) types.
This Recommendation describes how H.248 entities behave in such a network environment, and
defines an H.248 package, which may be used in a specific resource control scenario.
Clause 6 provides a background on Resource and Admission Control functions (RACF) and
discusses the resource control modes. The clause then focuses on the “Pull mode” of resource
control and provides a mapping of the RACF functions and flows of this mode to the H.248
architecture.
ITU-T H.248.55-2008 Referenced Document
ITU-T H.248.1-2005 Gateway Control Protocol: Version 3 Study Group 16 Audiovisual Services Systems and Multimedia System Infrastructure - Communications Procedures Study Group 16
ITU-T H.248.13-2002 Gateway Control Protocol: Quality Alert Ceasing Package Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services - Communication Procedures Study Group 16
ITU-T H.248.14-2002 Gateway Control Protocol: Inactivity Timer Package Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services - Communication Procedures Study Group 16
ITU-T H.248.36-2005 Gateway control protocol: Hanging Termination Detection package SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services ?Communication procedures Study Group 16
ITU-T H.248.40-2007 Gateway control protocol: Application data inactivity detection package Study Group 16
ITU-T Y.2111-2006 Resource and admission control functions in Next Generation Networks Study Group 13
ITU-T H.248.55-2008 history
2008ITU-T H.248.55-2008 Gateway control protocol: Generic pull mode package Study Group 16