Home>ITU V.151:2006

ITU V.151:2006

ITU V.151:2006 Procedures For End-to-end Connection Of Analogue Pstn Text Telephones Over An Ip Network Utilizing Text Relay Describes the inter-operation of two PSTN to IP Network gateways that facilitate the end-to-end connection of analogue text telephone terminals over an IP network utilizing text relay.

More details

Download

PDF AVAILABLE FORMATS IMMEDIATE DOWNLOAD
$17.50 tax incl.

$39.77 tax incl.

(price reduced by 56 %)

1000 items in stock

Table of Contents

1Scope
2References
3Definitions
4Abbreviations
5Introduction
5.1OverviewofTextoverIP
5.2ToIPsystemarchitecture
5.3Compliancerequirements
5.4RelationshipwithotherV.15xRecommendations
6Texttelephone-over-IPfunctions
7Connectionandnetworkscenarios
7.1ServiceandperformancerequirementsforToIP
7.2Audioandtextfunctionality
8Transportmethods
8.1Audiomode
8.2VBDmode
8.3Textrelaymode
8.4Switchingbetweentransportmodes
9ToIPoperationalmodes
10TextRelayPHYlayeroperation
11IPtransportfortextrelay
11.1Singleanddualportoperationoftextrelay
11.2Textrelaythroughput
12SupportofDTMFinToIP
13Transitionoutoftextrelay
14T.140encodingoftextrelay
14.1Charactersetsupport
14.2TIA-825AandT.50encodingrequirements
15Gateway-to-gatewayprotocoldefinitionsandprocedures
15.1Gatewaycapabilityandcallset-upmessages
15.2Gatewaycalldiscriminationmessages
16Start-upmodeofoperation
16.1Inter-relationshipwithV.150.1
16.2Inter-relationwithV.152
17Voicebanddatamodeminterworkingrequirements
18Facsimileinterworkingrequirements
19Callset-upprocedures
20Calldiscriminationprocedures
20.1V.8bisprocessing
20.2V.8CI/XCIprocessing
20.3Calldiscriminationoverview
20.4CalldiscriminationSDLdiagrams
20.5Visualflowcontrol
AnnexA-ProceduresfortheoptionalsupportofSPRTprotocol
A.1Overview
A.2SDPnegotiation
A.3H.245negotiation
AnnexB-Definitionofcapabilitiesforusewithin
H.245-basedsystems
AnnexC-SDPdescriptionofsessionssupportingV.151
AnnexD-InterworkingIPtextdeviceswithV.151gateways
D.1Introduction
D.2Exchangingcapabilitiesandopeningmediastreams
D.3Statetransitionandtexthandling
AnnexE-Payloadformatandsignalingsyntaxforreal-time
texttransportedwithinanaudiostream
E.1Overview
E.2Payloadformat
E.3Useofredundancy
AppendixI-BackgroundtoPSTNtexttelephony
AppendixII-ToIPcalldiscriminationcallflows
II.1Scope
II.2Scenariosforcalldiscriminationflows
II.3ScenarioswithSSEprotocolbeingused
II.4Scenarioswithpayloadtypeswitchingbeingused
AppendixIII-Theuseof[IETFRFC2198]in[ITU-TV.151]
AppendixIV-Textbufferingandtransmission
AppendixV-Probingsequence
Bibliography

Abstract

Describes the inter-operation of two PSTN to IP Network gateways that facilitate the end-to-end connection of analogue text telephone terminals over an IP network utilizing text relay.

Contact us