It should be noted that an important phase is contained in this document. It states that SIP is "position SIP as an ideal protocol to modify and enhance to meet the R2000 requirements." This can be translated into "We want our own protocol based in SIP."

It will be interest to see if the results are fully compatible with RFC 2546 (SIP).

Bob

------------------------------------------------------------------ Robert Callaghan Siemens Information and Communication Networks Tel: +1.561.997.3756 Fax: +1.561.997.3403 Email: Robert.Callaghan@ICN.Siemens.com ------------------------------------------------------------------

-----Original Message----- From: Michaely, Boaz [mailto:Boaz_Michaely@ICOMVERSE.COM] Sent: Monday, March 06, 2000 2:54 AM To: ITU-SG16@mailbag.cps.intel.com Subject: proposal for SIP as single call control protocol in 3GPP

All, This proposal comes from: AT&T, BT, Japan Telecom, Lucent, Nokia, Nortel, Rogers Wireless, T-Mobil, Telenor, Telia. For those who are unaware, Release 2000 is conceived as THE most important activity regarding the future of VoIP in the sense that in a few short years wireless will become the dominant way of communication (more than wireline). 3GPP now discusses "Release 2000" which is the architecture for that future mobile network, where everything is over IP, including the media.

This material is for discussion in Tokyo, March 6-9.

Thought you should know, Boaz

Boaz Michaely Senior System Architect, Corporate Comverse Network Systems Tel: +972 (3) 766-3844 , Mobile +972 (50) 39-30-17 http://people.itu.int/~michaely mailto:boaz_michaely@comverse.com

-----Original Message----- From: Lobley,NC,Nigel,NZCA R [mailto:nigel.lobley@BT.COM] Sent: Friday, March 03, 2000 1:40 PM To: 3GPP_TSG_SA_WG2@LIST.ETSI.FR Subject: Inputs from BT and a number of companies

Dear all

Please find attached a couple of papers for S2 next week.

See you in Japan

Nigel