SIST ES 202 391-12 V1.3.1:2008

• Abstract:

  Update of ES 202 391 to become Parlay X 2.2, to cover maintenance updates.The present document is part 12 of the Stage 3 Parlay X 2 Web Services specification for Open Service Access (OSA).; The OSA specifications define an architecture that enables application developers to make use of network functionality through an open standardized interface, i.e. the OSA APIs.; The present document specifies the Multimedia Conference Web Service. The following are defined here:; • Name spaces.; • Sequence diagrams.; • Data definitions.; • Interface specification plus detailed method descriptions.; • Fault definitions.; • Service Policies.; • WSDL Description of the interfaces.

• Status: Published
• Publication Date: 15-Jul-2008
• ICS: 35.100.01 - Open systems interconnection in general
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Jun-2008
• Due Date: 24-Aug-2008
• Completion Date: 16-Jul-2008
• Ref Project: ETSI ES 202 391-12 V1.3.1 (2008-05) - Open Service Access (OSA); Parlay X Web Services; Part 12: Multimedia Conference (Parlay X 2)

SIST ES 202 391-12 V1.3.1:2008 is the ETSI standard for Open Service Access (OSA) - Parlay X Web Services - Part 12: Multimedia Conference (Parlay X 2). It specifies a Web Service for creating a multimedia conference and managing participants and media through a standardized OSA API. The document is aimed at application developers and implementers who need the service model, message formats, faults, policies, and WSDL description.

What does SIST ES 202 391-12 V1.3.1:2008 specify?

SIST ES 202 391-12 V1.3.1:2008 specifies the Multimedia Conference Web Service as part 12 of the Stage 3 Parlay X 2 Web Services specification for OSA. In practice, it defines how an application creates a conference, adds or removes participants, and manages audio, video, chat, or data media streams.

The document also states the namespaces used by the interface and the data types, and it organizes the service definition through sequence diagrams, XML Schema data types, Web Service operations, fault definitions, service policies, and a WSDL annex.

Annex	What it covers
Annex A	Normative WSDL for Multimedia Conference
Annex B	Informative bibliography

The main clauses are:

• Scope
• References
• Definitions and abbreviations
• Detailed service description
• Namespaces
• Sequence diagrams
• XML Schema data type definition
• Web Service interface definition
• Fault definitions
• Service policies

What are the key requirements of SIST ES 202 391-12 V1.3.1:2008?

Clause 4 describes the service model around three entities - Conference, Participant, and Media. That matters because every operation and data type is built on this model, so implementers need to track conference state, participant state, and media state consistently.

Conference creation and lifecycle

Clause 8.1.1 defines createConference as the entry point for setting up a conference. The operation returns a conference identifier and can include a conference owner, a maximum duration, a maximum number of participants, conference description, and optional charging information.

This choice affects how the conference ends:

• if a conferenceOwner is used and no maximumDuration is set, the conference ends when that owner disconnects
• if maximumDuration is set, the conference ends when that limit is reached
• if neither is used, the conference ends when the last participant leaves

Clause 4 also states that the conference becomes active when the first participant connects, and the duration starts from that moment. In practice, this means duration is measured from real participation, not from the create request.

Participant control

Clause 8.1.4 defines inviteParticipant, which adds a new participant to an existing conference. The operation alerts the user of the incoming request, and the initial media depends on the conference type and the participant terminal capabilities.

Clause 8.1.5 defines disconnectParticipant, and clause 8.1.6 defines getParticipantInfo. Clause 8.1.7 defines getParticipants, which returns the status of every participant, including participants that have already disconnected. For an operator or application, this is the basic set of controls for joining, removing, and monitoring people in the call.

Media management

Clause 8.1.8 defines addMediaForParticipant, and clause 8.1.9 defines deleteMediaForParticipant. These operations modify the media set of one connected participant, using the Media and MediaDirection values from clause 7.

This is practical because media can be added or removed independently of the conference itself. The document says the new media must be compatible with the conference type and the participant terminal; otherwise the operation fails. If a participant already has the requested stream, the service raises SVC0210: Duplicate media stream. If the stream is not present when deletion is requested, the service raises SVC0211: Media stream does not match.

Status, data, and policy limits

Clause 7 defines the core data model:

• ConferenceStatus - Initial, Active, Terminated
• ParticipantStatus - Invited, Connected, Disconnected
• Media - Audio, Video, Chat, Data
• MediaDirection - In, Out, InOut

ConferenceInfo includes status, start time, duration, owner, number of participants, maximum number of participants, and conference description. ParticipantInfo includes the participant identifier, media information, join time, and status. These structures tell implementers what state they need to store and return when queried.

Clause 10 defines service policies for MaximumDuration, MaximumParticipants, and ChargingSupported. Clause 8.1.1 says the requested maximumDuration and maximumNumberOfParticipants must not exceed those policy values. In practice, the service can reject a request before a conference is created if it would exceed configured limits.

Fault handling

Clause 9 groups the main error cases. PolicyException includes POL0240: Too many participants, POL0241: Unavailable media, and POL0242: Maximum duration exceeded. ServiceException includes SVC0210: Duplicate media stream and SVC0211: Media stream does not match.

These faults are important because they tell implementers whether the problem is a service rule, a capacity limit, or an invalid media change.

What terms does SIST ES 202 391-12 V1.3.1:2008 define?

• Open Service Access (OSA) - An architecture that lets application developers use network functionality through an open standardized interface.
• Application Programming Interface (API) - The interface exposed by OSA so applications can invoke network services in a standard way.
• Conference - A uniquely identified context in which participants can be added or removed.
• Participant - A party involved in the conference, with its own status and media information.
• Media - A stream used in the conference, such as audio, video, chat, or data.
• Web Services Description Language (WSDL) - The machine-readable service description used to publish the Multimedia Conference interface.
• ConferenceStatus - The conference state used by the service, with Initial, Active, and Terminated values.
• MediaDirection - The direction of a media stream, such as In, Out, or InOut.

Who uses SIST ES 202 391-12 V1.3.1:2008?

Application developers use this standard to create conference calls and control participants through the MultimediaConference interface. OSA and Parlay X implementers use it to expose conferencing capability as a web service with a defined namespace, schema, faults, and WSDL.

It is also useful for teams validating interoperability between an application and a conferencing platform, because the document defines the message structures, state values, and service policy limits that both sides must follow.

What changed in SIST ES 202 391-12 V1.3.1:2008 from the previous edition?

This edition updates ES 202 391 to become Parlay X 2.2 and includes maintenance updates. The foreword states that it forms part of the Parlay X 2.2 set of specifications and that it is equivalent to 3GPP TS 29.199-12 V6.6.0.

Which standards are used with SIST ES 202 391-12 V1.3.1:2008?

• ETSI ES 202 391-1, Open Service Access (OSA); Parlay X Web Services; Part 1: Common (Parlay X 2) - Provides the common definitions and abbreviations used by this part, and Annex A says the WSDL representation is compliant with it.
• W3C Recommendation, XML Schema Part 2: Datatypes - Provides the XML datatypes used for values such as xsd:string, xsd:int, xsd:anyURI, and xsd:dateTime.

What does the SIST ES 202 391-12 V1.3.1:2008 document contain?

Clause 6 contains five sequence diagrams that show typical service flows: setting up a conference, adding and removing media, conference owner disconnect, all participants disconnect, and conference ended by the application. These diagrams help implementers understand the order of requests, responses, and state changes.

Clause 7 provides the XML Schema data type definitions, including the conference and participant structures and the status and media enumerations. Clause 8 gives the interface definition for MultimediaConference, with each operation, its input and output messages, and the faults it can raise.

Clause 9 lists the fault definitions with message identifiers and text. Clause 10 lists the service policies that control duration, participant limits, and whether charging is supported. Annex A contains the normative WSDL files in a companion archive, which are used to implement or validate the web service interface.

Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
ETSI Standard
Open Service Access (OSA);
Parlay X Web Services;
Part 12: Multimedia Conference
(Parlay X 2)
�
2 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)

Reference
RES/TISPAN-01056-12-OSA
Keywords
API, OSA, service
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2008.
© The Parlay Group 2008.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
3 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.6
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.7
4 Detailed service description .7
5 Namespaces.8
6 Sequence diagrams.8
6.1 Setting up a conference .8
6.2 Adding and Removing Media .10
6.3 Conference owner disconnects .11
6.4 All participants disconnect .12
6.5 Conference ended by application .13
7 XML Schema data type definition .14
7.1 ConferenceStatus enumeration.14
7.2 ConferenceInfo structure.14
7.3 ParticipantInfo structure.14
7.4 ParticipantStatus enumeration.14
7.5 Media enumeration.14
7.6 MediaDirection enumeration.15
7.7 MediaInfo structure.15
8 Web Service interface definition.15
8.1 Interface: MultimediaConference.15
8.1.1 Operation: createConference.15
8.1.1.1 Input message: createConferenceRequest.16
8.1.1.2 Output message: createConferenceResponse.16
8.1.1.3 Referenced faults.16
8.1.2 Operation: getConferenceInfo.16
8.1.2.1 Input message: getConferenceInfoRequest .16
8.1.2.2 Output message: getConferenceInfoResponse.16
8.1.2.3 Referenced faults.17
8.1.3 Operation: endConference.17
8.1.3.1 Input message: endConferenceRequest.17
8.1.3.2 Output message: endConferenceResponse.17
8.1.3.3 Referenced faults.17
8.1.4 Operation: inviteParticipant.17
8.1.4.1 Input message: inviteParticipantRequest.17
8.1.4.2 Output message: inviteParticipantResponse.18
8.1.4.3 Referenced faults.18
8.1.5 Operation: disconnectParticipant.18
8.1.5.1 Input message: disconnectParticipantRequest.18
8.1.5.2 Output message: disconnectParticipantResponse.18
8.1.5.3 Referenced faults.18
8.1.6 Operation: getParticipantInfo.18
8.1.6.1 Input message: getParticipantInfoRequest .18
8.1.6.2 Output message: getParticipantInfoResponse.19
8.1.6.3 Referenced faults.19
8.1.7 Operation: getParticipants.19
ETSI
4 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
8.1.7.1 Input message: getParticipantsRequest .19
8.1.7.2 Output message: getParticipantsResponse.19
8.1.7.3 Referenced faults.19
8.1.8 Operation: addMediaForParticipant.19
8.1.8.1 Input message: addMediaForParticipantRequest.20
8.1.8.2 Output message: addMediaForParticipantResponse.20
8.1.8.3 Referenced faults.20
8.1.9 Operation: deleteMediaForParticipant.20
8.1.9.1 Input message: deleteMediaForParticipantRequest .20
8.1.9.2 Output message: deleteMediaForParticipantResponse.20
8.1.9.3 Referenced faults.20
9 Fault definitions.21
9.1 PolicyException.21
9.1.1 POL0240: Too many participants.21
9.1.2 POL0241: Unavailable media.21
9.1.3 POL0242: Maximum duration exceeded .21
9.2 ServiceException.21
9.2.1 SVC0210: Duplicate media stream.21
9.2.2 SVC0211: Media stream does not match.21
10 Service policies .22
Annex A (normative): WSDL for Multimedia Conference .23
Annex B (informative): Bibliography.24
History .25

ETSI
5 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN), and is now submitted for the ETSI standards
Membership Approval Procedure.
The present document is part 12 of a multi-part deliverable covering Open Service Access (OSA); Parlay X
Web Services, as identified below:
Part 1: "Common";
Part 2: "Third Party Call";
Part 3: "Call Notification";
Part 4: "Short Messaging";
Part 5: "Multimedia Messaging";
Part 6: "Payment";
Part 7: "Account Management";
Part 8: "Terminal Status";
Part 9: "Terminal Location";
Part 10: "Call Handling";
Part 11: "Audio Call";
Part 12: "Multimedia Conference";
Part 13: "Address List Management";
Part 14: "Presence".
The present document has been defined jointly between ETSI, The Parlay Group (http://www.parlay.org) and the 3GPP.
The present document forms part of the Parlay X 2.2 set of specifications.
The present document is equivalent to 3GPP TS 29.199-12 V6.6.0 (Release 6).
ETSI
6 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
1 Scope
The present document is part 12 of the Stage 3 Parlay X 2 Web Services specification for Open Service Access (OSA).
The OSA specifications define an architecture that enables application developers to make use of network functionality
through an open standardized interface, i.e. the OSA APIs.
The present document specifies the Multimedia Conference Web Service. The following are defined here:
• Name spaces.
• Sequence diagrams.
• Data definitions.
• Interface specification plus detailed method descriptions.
• Fault definitions.
• Service Policies.
• WSDL Description of the interfaces.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] W3C Recommendation (2 May 2001): "XML Schema Part 2: Datatypes".
NOTE: Available at http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/.
ETSI
7 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
[2] ETSI ES 202 391-1: "Open Service Access (OSA); Parlay X Web Services; Part 1: Common
(Parlay X 2)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ES 202 391-1 [2] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ES 202 391-1 [2] apply.
4 Detailed service description
The Multimedia Conferencing is a simple Web Service that allows the creation of a multimedia conference and the
dynamic management of the participants and the media involved.
The underlying model of the service is based on the following entities:
• Conference: a "context" (uniquely identified) to which participants can be added/removed.
• Participant: each of the parties involved in the conference. Media can be added/removed for each participant.
There may exist a participant that is also the "owner" of the conference, i.e. the user who can end the call
and/or be the reference user for billing purposes.
• Media: the conference can utilize multiple media streams to support the participants' communication. In
particular both audio and video streams are available, including the specific stream direction (i.e. in, out,
bidirectional).
An application setting up a multimedia conference must initially invoke the createConference operation. The result of
such invocation is the creation of a "context" that represents a "virtual" room where users can "meet". A unique
identifier is assigned to the just-created conference. At this stage no participant is connected.
Subsequently the application may wish to add participants to the conference. In order to do so the operation
inviteParticipant can be used. The result of such an operation is to alert the user of the incoming connection request
(e.g. the user's terminal rings).
If the application wishes to check whether the user has accepted the invitation (i.e. is connected) it can invoke (at a later
time) the getParticipantInfo operation.
Note that:
• As soon as the first participant connects, the conference becomes "active". The duration of the conference is
then measured starting from the moment the conference has became active.
• The initial media set utilized by the participant will depend on the conference type and the media actually
supported by the participant's terminal.
During the conference session the application is able to:
• Add (or remove) a specific media stream to a single participant: e.g. adding a video bidirectional stream to a
participant that has an audio connection to the conference. This can be obtained by invoking the
addMediaForParticipant and the deleteMediaForParticipant operations.
• Disconnect a participant from the conference, by invoking the disconnectParticipant operation.
ETSI
8 Final draft ETSI ES 202 391-12 V1.3.1 (2008-02)
• Retrieve information related to the conference and its status, by invoking getConferenceInfo and
getParticipants.
There are different conditions that can determine the end of the conference:
1) The application may invoke the
...

ETSI Standard
Open Service Access (OSA);
Parlay X Web Services;
Part 12: Multimedia Conference
(Parlay X 2)
�
2 ETSI ES 202 391-12 V1.3.1 (2008-05)

Reference
RES/TISPAN-01056-12-OSA
Keywords
API, OSA, service
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2008.
© The Parlay Group 2008.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
3 ETSI ES 202 391-12 V1.3.1 (2008-05)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.6
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.7
4 Detailed service description .7
5 Namespaces.8
6 Sequence diagrams.8
6.1 Setting up a conference .8
6.2 Adding and Removing Media .10
6.3 Conference owner disconnects .11
6.4 All participants disconnect .12
6.5 Conference ended by application .13
7 XML Schema data type definition .14
7.1 ConferenceStatus enumeration.14
7.2 ConferenceInfo structure.14
7.3 ParticipantInfo structure.14
7.4 ParticipantStatus enumeration.14
7.5 Media enumeration.14
7.6 MediaDirection enumeration.15
7.7 MediaInfo structure.15
8 Web Service interface definition.15
8.1 Interface: MultimediaConference.15
8.1.1 Operation: createConference.15
8.1.1.1 Input message: createConferenceRequest.16
8.1.1.2 Output message: createConferenceResponse.16
8.1.1.3 Referenced faults.16
8.1.2 Operation: getConferenceInfo.16
8.1.2.1 Input message: getConferenceInfoRequest .16
8.1.2.2 Output message: getConferenceInfoResponse.16
8.1.2.3 Referenced faults.17
8.1.3 Operation: endConference.17
8.1.3.1 Input message: endConferenceRequest.17
8.1.3.2 Output message: endConferenceResponse.17
8.1.3.3 Referenced faults.17
8.1.4 Operation: inviteParticipant.17
8.1.4.1 Input message: inviteParticipantRequest.17
8.1.4.2 Output message: inviteParticipantResponse.18
8.1.4.3 Referenced faults.18
8.1.5 Operation: disconnectParticipant.18
8.1.5.1 Input message: disconnectParticipantRequest.18
8.1.5.2 Output message: disconnectParticipantResponse.18
8.1.5.3 Referenced faults.18
8.1.6 Operation: getParticipantInfo.18
8.1.6.1 Input message: getParticipantInfoRequest .18
8.1.6.2 Output message: getParticipantInfoResponse.19
8.1.6.3 Referenced faults.19
8.1.7 Operation: getParticipants.19
ETSI
4 ETSI ES 202 391-12 V1.3.1 (2008-05)
8.1.7.1 Input message: getParticipantsRequest .19
8.1.7.2 Output message: getParticipantsResponse.19
8.1.7.3 Referenced faults.19
8.1.8 Operation: addMediaForParticipant.19
8.1.8.1 Input message: addMediaForParticipantRequest.20
8.1.8.2 Output message: addMediaForParticipantResponse.20
8.1.8.3 Referenced faults.20
8.1.9 Operation: deleteMediaForParticipant.20
8.1.9.1 Input message: deleteMediaForParticipantRequest .20
8.1.9.2 Output message: deleteMediaForParticipantResponse.20
8.1.9.3 Referenced faults.20
9 Fault definitions.21
9.1 PolicyException.21
9.1.1 POL0240: Too many participants.21
9.1.2 POL0241: Unavailable media.21
9.1.3 POL0242: Maximum duration exceeded .21
9.2 ServiceException.21
9.2.1 SVC0210: Duplicate media stream.21
9.2.2 SVC0211: Media stream does not match.21
10 Service policies .22
Annex A (normative): WSDL for Multimedia Conference .23
Annex B (informative): Bibliography.24
History .25

ETSI
5 ETSI ES 202 391-12 V1.3.1 (2008-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
The present document is part 12 of a multi-part deliverable covering Open Service Access (OSA); Parlay X
Web Services, as identified below:
Part 1: "Common";
Part 2: "Third Party Call";
Part 3: "Call Notification";
Part 4: "Short Messaging";
Part 5: "Multimedia Messaging";
Part 6: "Payment";
Part 7: "Account Management";
Part 8: "Terminal Status";
Part 9: "Terminal Location";
Part 10: "Call Handling";
Part 11: "Audio Call";
Part 12: "Multimedia Conference";
Part 13: "Address List Management";
Part 14: "Presence".
The present document has been defined jointly between ETSI, The Parlay Group (http://www.parlay.org) and the 3GPP.
The present document forms part of the Parlay X 2.2 set of specifications.
The present document is equivalent to 3GPP TS 29.199-12 V6.6.0 (Release 6).
ETSI
6 ETSI ES 202 391-12 V1.3.1 (2008-05)
1 Scope
The present document is part 12 of the Stage 3 Parlay X 2 Web Services specification for Open Service Access (OSA).
The OSA specifications define an architecture that enables application developers to make use of network functionality
through an open standardized interface, i.e. the OSA APIs.
The present document specifies the Multimedia Conference Web Service. The following are defined here:
• Name spaces.
• Sequence diagrams.
• Data definitions.
• Interface specification plus detailed method descriptions.
• Fault definitions.
• Service Policies.
• WSDL Description of the interfaces.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] W3C Recommendation (2 May 2001): "XML Schema Part 2: Datatypes".
NOTE: Available at http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/.
ETSI
7 ETSI ES 202 391-12 V1.3.1 (2008-05)
[2] ETSI ES 202 391-1: "Open Service Access (OSA); Parlay X Web Services; Part 1: Common
(Parlay X 2)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ES 202 391-1 [2] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ES 202 391-1 [2] apply.
4 Detailed service description
The Multimedia Conferencing is a simple Web Service that allows the creation of a multimedia conference and the
dynamic management of the participants and the media involved.
The underlying model of the service is based on the following entities:
• Conference: a "context" (uniquely identified) to which participants can be added/removed.
• Participant: each of the parties involved in the conference. Media can be added/removed for each participant.
There may exist a participant that is also the "owner" of the conference, i.e. the user who can end the call
and/or be the reference user for billing purposes.
• Media: the conference can utilize multiple media streams to support the participants' communication. In
particular both audio and video streams are available, including the specific stream direction (i.e. in, out,
bidirectional).
An application setting up a multimedia conference must initially invoke the createConference operation. The result of
such invocation is the creation of a "context" that represents a "virtual" room where users can "meet". A unique
identifier is assigned to the just-created conference. At this stage no participant is connected.
Subsequently the application may wish to add participants to the conference. In order to do so the operation
inviteParticipant can be used. The result of such an operation is to alert the user of the incoming connection request
(e.g. the user's terminal rings).
If the application wishes to check whether the user has accepted the invitation (i.e. is connected) it can invoke (at a later
time) the getParticipantInfo operation.
Note that:
• As soon as the first participant connects, the conference becomes "active". The duration of the conference is
then measured starting from the moment the conference has became active.
• The initial media set utilized by the participant will depend on the conference type and the media actually
supported by the participant's terminal.
During the conference session the application is able to:
• Add (or remove) a specific media stream to a single participant: e.g. adding a video bidirectional stream to a
participant that has an audio connection to the conference. This can be obtained by invoking the
addMediaForParticipant and the deleteMediaForParticipant operations.
• Disconnect a participant from the conference, by invoking the disconnectParticipant operation.
ETSI
8 ETSI ES 202 391-12 V1.3.1 (2008-05)
• Retrieve information related to the conference and its status, by invoking getConferenceInfo and
getParticipants.
There are different conditions that can determine the end of the conference:
1) The application may invoke
...

SLOVENSKI STANDARD
01-september-2008
2GSUWLGRVWRSGRVWRULWYH26$6SOHWQHVWRULWYH3DUOD\;GHO
9HþSUHGVWDYQRVWQDNRQIHUHQFD3DUOD\;
Open Service Access (OSA) - Parlay X Web Services - Part 12: Multimedia Conference
(Parlay X 2)
Ta slovenski standard je istoveten z: ES 202 391-12 Version 1.3.1
ICS:
35.100.01 Medsebojno povezovanje Open systems
odprtih sistemov na splošno interconnection in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI Standard
Open Service Access (OSA);
Parlay X Web Services;
Part 12: Multimedia Conference
(Parlay X 2)
�
2 ETSI ES 202 391-12 V1.3.1 (2008-05)

Reference
RES/TISPAN-01056-12-OSA
Keywords
API, OSA, service
ETSI
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The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2008.
© The Parlay Group 2008.
All rights reserved.
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DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
3 ETSI ES 202 391-12 V1.3.1 (2008-05)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.6
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.7
4 Detailed service description .7
5 Namespaces.8
6 Sequence diagrams.8
6.1 Setting up a conference .8
6.2 Adding and Removing Media .10
6.3 Conference owner disconnects .11
6.4 All participants disconnect .12
6.5 Conference ended by application .13
7 XML Schema data type definition .14
7.1 ConferenceStatus enumeration.14
7.2 ConferenceInfo structure.14
7.3 ParticipantInfo structure.14
7.4 ParticipantStatus enumeration.14
7.5 Media enumeration.14
7.6 MediaDirection enumeration.15
7.7 MediaInfo structure.15
8 Web Service interface definition.15
8.1 Interface: MultimediaConference.15
8.1.1 Operation: createConference.15
8.1.1.1 Input message: createConferenceRequest.16
8.1.1.2 Output message: createConferenceResponse.16
8.1.1.3 Referenced faults.16
8.1.2 Operation: getConferenceInfo.16
8.1.2.1 Input message: getConferenceInfoRequest .16
8.1.2.2 Output message: getConferenceInfoResponse.16
8.1.2.3 Referenced faults.17
8.1.3 Operation: endConference.17
8.1.3.1 Input message: endConferenceRequest.17
8.1.3.2 Output message: endConferenceResponse.17
8.1.3.3 Referenced faults.17
8.1.4 Operation: inviteParticipant.17
8.1.4.1 Input message: inviteParticipantRequest.17
8.1.4.2 Output message: inviteParticipantResponse.18
8.1.4.3 Referenced faults.18
8.1.5 Operation: disconnectParticipant.18
8.1.5.1 Input message: disconnectParticipantRequest.18
8.1.5.2 Output message: disconnectParticipantResponse.18
8.1.5.3 Referenced faults.18
8.1.6 Operation: getParticipantInfo.18
8.1.6.1 Input message: getParticipantInfoRequest .18
8.1.6.2 Output message: getParticipantInfoResponse.19
8.1.6.3 Referenced faults.19
8.1.7 Operation: getParticipants.19
ETSI
4 ETSI ES 202 391-12 V1.3.1 (2008-05)
8.1.7.1 Input message: getParticipantsRequest .19
8.1.7.2 Output message: getParticipantsResponse.19
8.1.7.3 Referenced faults.19
8.1.8 Operation: addMediaForParticipant.19
8.1.8.1 Input message: addMediaForParticipantRequest.20
8.1.8.2 Output message: addMediaForParticipantResponse.20
8.1.8.3 Referenced faults.20
8.1.9 Operation: deleteMediaForParticipant.20
8.1.9.1 Input message: deleteMediaForParticipantRequest .20
8.1.9.2 Output message: deleteMediaForParticipantResponse.20
8.1.9.3 Referenced faults.20
9 Fault definitions.21
9.1 PolicyException.21
9.1.1 POL0240: Too many participants.21
9.1.2 POL0241: Unavailable media.21
9.1.3 POL0242: Maximum duration exceeded .21
9.2 ServiceException.21
9.2.1 SVC0210: Duplicate media stream.21
9.2.2 SVC0211: Media stream does not match.21
10 Service policies .22
Annex A (normative): WSDL for Multimedia Conference .23
Annex B (informative): Bibliography.24
History .25

ETSI
5 ETSI ES 202 391-12 V1.3.1 (2008-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
The present document is part 12 of a multi-part deliverable covering Open Service Access (OSA); Parlay X
Web Services, as identified below:
Part 1: "Common";
Part 2: "Third Party Call";
Part 3: "Call Notification";
Part 4: "Short Messaging";
Part 5: "Multimedia Messaging";
Part 6: "Payment";
Part 7: "Account Management";
Part 8: "Terminal Status";
Part 9: "Terminal Location";
Part 10: "Call Handling";
Part 11: "Audio Call";
Part 12: "Multimedia Conference";
Part 13: "Address List Management";
Part 14: "Presence".
The present document has been defined jointly between ETSI, The Parlay Group (http://www.parlay.org) and the 3GPP.
The present document forms part of the Parlay X 2.2 set of specifications.
The present document is equivalent to 3GPP TS 29.199-12 V6.6.0 (Release 6).
ETSI
6 ETSI ES 202 391-12 V1.3.1 (2008-05)
1 Scope
The present document is part 12 of the Stage 3 Parlay X 2 Web Services specification for Open Service Access (OSA).
The OSA specifications define an architecture that enables application developers to make use of network functionality
through an open standardized interface, i.e. the OSA APIs.
The present document specifies the Multimedia Conference Web Service. The following are defined here:
• Name spaces.
• Sequence diagrams.
• Data definitions.
• Interface specification plus detailed method descriptions.
• Fault definitions.
• Service Policies.
• WSDL Description of the interfaces.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] W3C Recommendation (2 May 2001): "XML Schema Part 2: Datatypes".
NOTE: Available at http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/.
ETSI
7 ETSI ES 202 391-12 V1.3.1 (2008-05)
[2] ETSI ES 202 391-1: "Open Service Access (OSA); Parlay X Web Services; Part 1: Common
(Parlay X 2)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ES 202 391-1 [2] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ES 202 391-1 [2] apply.
4 Detailed service description
The Multimedia Conferencing is a simple Web Service that allows the creation of a multimedia conference and the
dynamic management of the participants and the media involved.
The underlying model of the service is based on the following entities:
• Conference: a "context" (uniquely identified) to which participants can be added/removed.
• Participant: each of the parties involved in the conference. Media can be added/removed for each participant.
There may exist a participant that is also the "owner" of the conference, i.e. the user who can end the call
and/or be the reference user for billing purposes.
• Media: the conference can utilize multiple media streams to support the participants' communication. In
particular both audio and video streams are available, including the specific stream direction (i.e. in, out,
bidirectional).
An application setting up a multimedia conference must initially invoke the createConference operation. The result of
such invocation is the creation of a "context" that represents a "virtual" room where users can "meet". A unique
identifier is assigned to the just-created conference. At this stage no participant is connected.
Subsequently the application may wish to add participants to the conference. In order to do so the operation
inviteParticipant can be used. The result of such an operation is to alert the user of the incoming connection request
(e.g. the user's terminal rings).
If the application wishes to check whether the user has accepted the invitation (i.e. is connected) it can invoke (at a later
time) the getParticipantInfo operation.
Note that:
• As soon as the first participant connects, the conference becomes "active". The duration of the conference is
then measured starting from the moment the conference has became active.
• The initial media set utilized by the participant will depend on the conference type and the media actually
supported by the participant's terminal.
During the conference session the application is able to:
• Add (or remove) a specific media stream to a single participant: e.g. adding a video bidirectional stream to a
participant that has an audio connection to the conference. This can be obtained by invoking the
addMediaForParticipant and the deleteMediaForParticipant operations.
• Disconnect a participant from the conference, by invoking the disconnectParticipant operation.
ETSI
8 ETSI ES 202 391-12 V1.3.1 (2008-05)
• Retrieve inf
...