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ECMA 339 : 2ED 2006
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CORPORATE TELECOMMUNICATION NETWORKS - SIGNALLING INTERWORKING BETWEEN QSIG AND SIP - BASIC SERVICES
12-01-2013
1 Scope
2 Conformance
3 References
4 Terminology and Definitions
4.1 External Definitions
4.2 Other definitions
4.2.1 Corporate Telecommunication Network (CN)
4.2.2 Gateway
4.2.3 IP Network
4.2.4 Media Stream
4.2.5 Private Integrated Services Network (PISN)
4.2.6 Private Integrated Services Network Exchange
(PINX)
5 Acronyms
6 Background and Architecture
7 General Requirements
8 Message Mapping Requirements
8.1 Message Validation and Handling of Protocol Errors
8.2 Call Establishment from QSIG to SIP
8.2.1 Call Establishment from QSIG to SIP Using En
Bloc Procedures
8.2.2 Call Establishment from QSIG to SIP Using
Overlap Procedures
8.3 Call Establishment from SIP to QSIG
8.3.1 Receipt of SIP INVITE Request for a New Call
8.3.2 Receipt of QSIG CALL PROCEEDING Message
8.3.3 Receipt of QSIG PROGRESS Message
8.3.4 Receipt of QSIG ALERTING Message
8.3.5 Inclusion of SDP Information in a SIP 18x
Provisional Response
8.3.6 Receipt of QSIG CONNECT Message
8.3.7 Receipt of SIP PRACK Request
8.3.8 Receipt of SIP ACK Request
8.3.9 Receipt of a SIP INVITE Request for a Call
Already Being Established
8.4 Call Clearing and Call Failure
8.4.1 Receipt of a QSIG DISCONNECT, RELEASE, or
RELEASE COMPLETE Message
8.4.2 Receipt of a SIP BYE Request
8.4.3 Receipt of a SIP CANCEL Request
8.4.4 Receipt of a SIP 4xx-6xx Response to an
INVITE Request
8.4.5 Gateway-Initiated Call Clearing
8.5 Request to Change Media Characteristics
9 Number Mapping
9.1 Mapping from QSIG to SIP
9.1.1 Using Information from the QSIG Called
Party Number Information Element
9.1.2 Using Information from the QSIG Calling
Party Number Information Element
9.1.3 Using Information from the QSIG Connected
Number Information Element
9.2 Mapping from SIP to QSIG
9.2.1 Generating the QSIG Called Party Number
Information Element
9.2.2 Generating the QSIG Calling Party Number
Information Element
9.2.3 Generating the QSIG Connected Number
Information Element
10 Requirements for Support of Basic Services
10.1 Derivation of QSIG Bearer Capability Information
Element
10.2 Derivation of Media Type in SDP
11 Security Considerations
11.1 General
11.2 Calls from QSIG to Invalid or Restricted Numbers
11.3 Abuse of SIP Response Code
11.4 Use of the To Header URI
11.5 Use of the From Header URI
11.6 Abuse of Early Media
11.7 Protection from Denial-of-Service Attacks
Annex A (normative) Implementation Conformance Statement
(ICS) proforma
Annex B (informative) Example Message Sequences
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