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TS 23.334 (CT4) ★
IMS-ALG – IMS-AGW
Iq Interface –
Stage 2

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V16.0.0 (Wzip) 2019/06 208 p.

V15.0.0 (PDF) 2018/06 218 p.

V14.5.0 2018/03 219 p.

V13.9.0 2017/12 208 p.

V12.11.0 2016/12 165 p.

V11.2.0 2012/12 68 p.

V10.5.0 2012/12 65 p.

V9.3.0 2010/10 51 p.

Rapporteur: Dr. Belling, Thomas

This TS defines the stage 2 description for the Iq reference point (IMS Application Level Gateway – IMS Access Gateway). The stage 2 shall cover the information flow between the P-CSCF (IMS-ALG) and IMS-AGW. The protocol used over the Iq interface is the gateway control protocol according ITU-T Recommendation H.248 (which is specified for Iq by an H.248 profile according TS 29.334).

short Table of Contents for TS 23.334 Word version: 16.0.0

each title links to the equivalent title in the full ToC

1 Scope [R9] Word-p. 9

2 References [R9] Word-p. 9

3 Definitions, symbols and abbreviations [R9] Word-p. 13

4 Architecture [R9] Word-p. 15

5 Functional Requirements [R9] Word-p. 18

5.1 General Word-p. 18

5.2 Gate Control & Local NAT Word-p. 18

5.3 IP realm indication and availability Word-p. 18

5.4 Remote NAT traversal support Word-p. 19

5.5 Remote Source Address/Port Filtering Word-p. 19

5.6 Traffic Policing Word-p. 19

5.7 Hanging Termination Detection Word-p. 19

5.8 QoS Packet Marking Word-p. 20

5.9 Handling of RTCP streams

Word-p. 20

5.10 Media Inactivity Detection Word-p. 21

5.11 IMS Media Plane Security Word-p. 22

5.12 Explicit Congestion Notification support [R10] Word-p. 29

5.13 Transcoding [R10] Word-p. 30

5.14 Multimedia Priority Service (MPS) Support [R11] Word-p. 47

5.15 Coordination of Video Orientation [R12] Word-p. 48

5.16 Generic image attributes [R12] Word-p. 49

5.17 TCP bearer connection control [R12] Word-p. 49

5.18 Interactive Connectivity Establishment (ICE) [R12] Word-p. 53

5.19 MSRP handling [R12] Word-p. 57

5.20 Web Real-Time Communication (WebRTC) [R12] Word-p. 60

5.21 Alternate Connection (ALTC) Addresses Management [R12] Word-p. 73

5.22 Video Region-of-Interest (ROI) [R13] Word-p. 73

5.23 SDP Capability Negotiation (SDPCapNeg) [R13] Word-p. 75

5.24 RTP-level pause and resume [R14] Word-p. 76

5.25 RTCP Codec Control Commands and Indications [R14] Word-p. 77

5.26 Delay Budget Information (DBI) [R15] Word-p. 78

6 IMS-ALG to IMS-AGW Procedures [R9] Word-p. 79

6.1 Non-Call Related Procedures Word-p. 79

6.2 Call Related Procedures Word-p. 87

7 Charging [R9] Word-p. 167

8 Messages/Procedures and Contents [R9] Word-p. 168

A Change history Word-p. 207