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Content for TS 24.371 Word version: 17.1.0

1… 5A… 7…

7 Call origination and termination p. 21

7.1 General p. 21

7.2 WIC (WebRTC IMS Client) p. 21

7.2.1 General p. 21

7.2.2 WIC originating call p. 21

7.2.3 WIC terminating call p. 22

7.2.4 WIC emergency call p. 22

7.3 WWSF (WebRTC Web Server Function) p. 23

7.4 eP-CSCF (P-CSCF enhanced for WebRTC) p. 23

7.4.1 General p. 23

7.4.2 WIC originating call p. 23

7.4.3 WIC terminating call p. 24

7.4.4 WIC emergency call p. 25

7.4.5 Media optimization procedure p. 25

7.4.5.1 WIC originating call p. 25

7.4.5.2 WIC terminating call p. 27

8 Data channel open and close p. 30

8.1 General p. 30

8.2 WIC (WebRTC IMS Client) p. 30

8.2.1 General p. 30

8.2.2 WIC originating call p. 30

8.2.3 WIC terminating call p. 31

8.3 WWSF (WebRTC Web Server Function) p. 31

8.4 eP-CSCF (P-CSCF enhanced for WebRTC) p. 31

8.4.1 General p. 31

8.4.2 WIC originating call p. 31

8.4.3 WIC terminating call p. 32

9 Call modification p. 33

10 IP multimedia application support in the IM CN subsystem using webRTC p. 33

10.1 General p. 33

10.2 Access to MMTel and supplementary services using webRTC p. 33

10.2.1 General p. 33

10.2.2 WIC (WebRTC IMS Client) p. 33

10.2.2.1 SIP based protocol used by the WIC p. 33

10.2.2.2 non-SIP based protocol used by the WIC p. 33

10.2.3 WWSF (WebRTC Web Server Function) p. 33

10.2.4 eP-CSCF (P-CSCF enhanced for WebRTC) p. 33

A Example signalling flows p. 34

A.1 Scope of signalling flows p. 34

A.2 Void

A.3 Signalling flows for registration p. 34

A.3.1 Void

A.3.2 WIC registration of individual public user identity based on web authentication p. 34

A.3.3 Void

A.4 Void

A.5 Void

$ Change history p. 37