Minutes of the S2 meeting #14 4th to 8th of September 2000 Bristol, uk

4.2.5Other tdocs related to call flows

S2-001437 from Siemens: CSCF Availability during the SIP Session

This document proposes to standardise the use of the optional SIP Record-Route mechanism to enable the CSCF or any proxy to stay within the SIP signalling path and so to keep control over the session until the session is released.

Discussion: It’s Ok to state that a mechanism is needed to ensure that a CSCF remains within the signalling path, but the proposed mechanism itself should be decided by CN, according to Lucent, BT and Motorola.

Conclusion: Revised to S2-001632 to keep only the requirements.
S2-001632 from Siemens: CSCF Availability during the SIP Session

Revision of S2-001437.

Conclusion: For e-mail approval.For e-mail approval (see the conclusion in table in annex).
S2-001474 from Nokia: Role of the proxy CSCF after the registration procedure

Nokia proposes to add the following sentence to 23.228: “Proxy CSCF shall be supported in both roaming and non-roaming case for home and visited service model, even when serving CSCF is located in the same IM CN SS.”

Conclusion: Editorially revised to S2-001633
S2-001633 from Nokia: Role of the proxy CSCF after the registration procedure

Editorial revision of S2-001474

Conclusion: Approved.