Notes on SIPPING Session 2 at IETF 64
reported by Steve S.
SIPPING
SIPPING Minutes IETF 64,
Chairs: HYPERLINK "mailto:Gonzalo.Camarillo@ericsson.com" Gonzalo Camarillo, HYPERLINK "mailto:rohan@ekabal.com" Rohan Mahy, and HYPERLINK "mailto:dean.willis@softarmor.com" Dean Willis
MONDAY, November 7, 2005, 1510-1710, Salon D/E
Status and Agenda Bash
Chairs 15 minutes 1510 - 1525
New charter is up.
RAI – Realtime Applications & Infrastructure
Config Framework and Data Sets
Dan Petrie
20 minutes 1525 - 1545 draft-ietf-sipping-config-framework-07.txt
draft-petrie-sipping-profile-datasets-03.txt
draft-petrie-sipping-sip-dataset-01.txt
Properties required to deploy SIP. Discussion, what exists is too complicated to be used.
Very complex policies.
Session Policies
Volker Hilt
20 minutes 1545 - 1605 draft-hilt-sipping-session-policy-framework-00.txt
draft-ietf-sipping-media-policy-dataset-00.txt
draft-hilt-sipping-policy-package-00.txt
Consent Framework
Gonzalo Camarillo
15 minutes 1605 - 1620 draft-ietf-sipping-consent-framework-03.txt
Conf Bridge Transcoding Model
Gonzalo Camarillo
10 minutes 1620 - 1630 draft-ietf-sipping-transc-conf-00.txt
IPv6 Transition
Vijay K. Gurbani
10 minutes 1630 - 1640 draft-ietf-sipping-v6-transition-01.txt
draft-gurbani-sipping-ipv6-sip-01.txt
7 torture test cases? More needed.
SIP-unfriendly Functions in Current Architectures
Jani Hautakorpi
10 minutes 1640 - 1650 draft-camarillo-sipping-sbc-funcs-02.txt
Session Border Controllers don’t play well with SIP.
Max Forwards Issues
Robert Sparks
10 minutes 1650 - 1700 draft-lawrence-maxforward-problems-00.txt
Makes it easy to attack network. One solution is loop detection on proxies that fork.
This seems to be a reasonable option.
Multi transcoding
Tae -Gyu Kang
10 minutes 1700 - 1710 draft-kang-sipping-transc-scenario-00.txt
WEDNESDAY, November 9, 2005, 1300-1500, Salon D/E
Agenda Bash
5 minutes Discussion Leader 1300 - 1305
Retargetting Issues
Replaced by other work, voice mail truck?
Extending the SIP Reason Header with Warning Codes
10 minutes Paul Kyzivat
1335 - 1345 draft-hautakorpi-reason-header-for-warnings-00.txt
What’s the motivation?
Question (Gonzalo) about warning codes? Why? Jonathan – We have Response Codes so don’t need WC. Extension RC takes care of shortage of RCs. G wants us to solve this. J – no shortage of space.
How much space left? Robert Sparks will find out.
GRUU Reg Event Package
10 minutes Paul Kviyat
1325 - 1335 draft-ietf-sipping-gruu-reg-event-00.txt
Converted to WG draft. Proposal to WGLC. Approved.
SIP Identity Usage within Enterprise Scenarios
10 minutes Steffen Fries
draft-fries-sipping-identity-enterprise-scenario-01.txt
Cullen has a major problem. European privacy laws.
Discussion on certificates??? Device Certificates?
How do you establish trust in a corporate net and bind a device to a user id.?
Calling Party Category
Rocky Wang draft-rocky-sipping-calling-party-category-01.txt 10 minutes Henning Schulzrinne
Supplementary Services meet VoIP.
Jonathan: Major problem. Fundamentally won’t work. Needs SAML??
Martin: Need labels: prison, motel,... Original Line Identification. (CPC – Calling Party Category from ISUP)
Steve ? Do we want to go down this road?
Janet Gunn: Drop CPC coding but must do functions. Invent a new way.
Forced Hospitality: need something.
Jonathan: Role Assertion is necessary. We need to do this.
Hannes was volunteered (while out of room) to do a new doc.
In my opinion: enough interest and different viewpoints that a requirements document is required and will speed up reaching a usable spec.
PRACK
Rohan: Not much progess. Hard. State machine is too complex.
What to do:
Jonathan: two reasons: need additional messages, has to be backwards compatible with 2543. Caution. Need to reevaluate assumptions. Prack not worth enough to implement.
Robert Sparks: Full Prack not being implemented.
Requirements and Possible Mechanisms for File Transfer Services Within the Context of SIP Based Communication
draft-isomaki-sipping-file-transfer-00.txt
Payment for Services in SIP
draft-jennings-sipping-pay-03.txt
Postage Stamps for SPIT.
Joel Halpern: bad to be dependent on a micro-payment structure. Hard task. Needs SIP extensions. Needs payment infrastructure. We don’t want to work on that. Very hard, many scenarios.
Cullen: ditto Joel.
Rohan: ditto, SPIT prevention not practical. Junk mail cost too expensive for poor countries. Forget SPIT. Just do micro-payment.
? wants micropayment.
Hannes:
Dean: now overtime.
URN for Services
10 minutes Henning Schulzrinne
draft-schulzrinne-sipping-service-01.txt
Cullen: doesn’t like separate code path
Jonathan: likes separate code path.
Much support.
James: SOS needs to be coordinated with Ecrit.