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ECMA 332 : 1ED 2001
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CORPORATE TELECOMMUNICATION NETWORKS - SIGNALLING INTERWORKING BETWEEN QSIG AND H.323 - BASIC SERVICES
12-01-2013
1 Scope
2 Conformance
3 References
4 Definitions
4.1 External definitions
4.2 Other definitions
4.2.1 Gateway
4.2.2 IP network
4.2.3 Ring-back tone
5 Acronyms
6 Architecture
7 General requirements
8 Message mapping requirements
8.1 Message validation and handling of protocol
errors
8.2 Call establishment from QSIG to H.323
8.2.1 Call establishment from QSIG to H.323
using admission procedures
8.2.2 Call establishment from QSIG to H.323
without admission procedures
8.3 Call establishment from H.323 to QSIG
8.3.1 Receipt of an H.225.0 SETUP message
8.3.2 Additional messages relating to overlap
sending
8.3.3 Receipt of a QSIG CALL PROCEEDING message
8.3.4 Receipt of a QSIG ALERTING message
8.3.5 Receipt of a QSIG CONNECT message
8.4 PROGRESS messages and Progress indicator
information elements
8.4.1 Receipt of a Progress indicator
information element in a QSIG message
8.4.2 Receipt of a Progress indicator
information element in an H.225.0
message
8.4.3 Transmission of Progress indicator
information element in support of
gateway-provided ring-back tone
8.5 Call clearing
8.5.1 Call clearing initiated by QSIG
8.5.2 Call clearing initiated by H.323
9 Numbering requirements
9.1 Supported numbering plans and types of number
9.2 Mapping numbers from QSIG to H.323
9.3 Mapping numbers from H.323 to QSIG
9.4 Handling of presentation and screening
indicators
9.5 Handling of subaddresses
10 Security requirements
11 Requirements for support of basic services
11.1 Calls from QSIG to H.323
11.2 Calls from H.323 to QSIG
12 Media channel establishment
13 Requirements for the support of group 3 fax in
accordance with H.323 annex D
13.1 Start of fax transmission
13.2 End of fax transmission
14 Requirements for the support of DTMF
15 Requirements for the provision of ring-back tone
Annex A - Implementation Conformance Statement
(ICS) proforma
Annex B - Example message sequences
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