Table of Contents
1Scope
2References
2.1Normativereferences
2.2Informativereferencesandbibliography
3TermsandDefinitions
4Abbreviations
5Conventions
5.1Recommendationversion
6DefinitionoftheVBDmodeofoperation
6.1MinimumrequirementsforVBDmodeofoperation
7NegotiationofsupportofVBDandselectionofVBDcodec
andotherVBDenhancedfunctionality
7.1NegotiationusingSessionDescriptionProtocol(SDP)
7.2UseofVBDinH.323systems
8TheuseofRFC2833modem/facsimile/texttelephoneevents
9VBDstimuli
10ProceduresfortransitioningbetweenaudiomodeandVBDmode
11Optionalproceduresforindicatingtoaremoteendtransition
intoVBDusingStateSignallingEvents(SSEs)
11.1DeclarationofSSEs
11.2TransitiontotheVBDmodeforV.150.1gateways
11.3TransitiontotheVBDmodefornon-V.150cases
11.4TransitionfromtheVBDmediamode
11.5Security-Optional
AnnexA-Vendor-definedmessages Abstract
Defines procedures for equipment that interconnect GSTN networks with IP networks to provide satisfactory, transparent delivery of modulated voice-band data (VBD) as encoded audio content over IP (data modems, facsimile terminals and text telephones).