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Today's Topics:
1. Authentication of the called party... (Baniel
Uri-CUB001)
2. Call for Participation: IPTComm 2007 (Henning
Schulzrinne)
3. SIP Course Arap.Comm.College
News Release>>Corporate
Learning Division offers Accelerated Two-day Courses
for
Communications Professionals (Tom Cross)
------------------------------------------------------------
----------
Message: 1
Date: Fri, 22 Jun 2007 14:33:32 -0400
From: "Baniel Uri-CUB001" <Uri.Banielmotorola.com>
Subject: [SIPForum-discussion] Authentication of the called
party...
To: <sip-implementorscs.columbia.edu>,
<discussionsipforum.org>,
<sipietf.org>
Message-ID:
<E4F79F05A3625543AFD0B2C875D7425A023956E9de01exm71.ds.mot.com>
Content-Type: text/plain; charset="us-ascii"
Hi. I have bumped into Question #19 from
http://www.sipknowledge.com/SIP_Dev_Expe
rt_Exam_Linked_from_most_wanted_
42.htm.
They ask there about possible cases when SIP client may get
authenticated by a server.
This makes me wonder: There does not seem to be a current
way to
authenticate a called party by a proxy right? (as the
proxy-authenticate
header may be used only in 4xx responses but not in INVITE),
so we need
to trust the registrar that it fulfilled its authentication
job. But
what if we like to keep registration interval very large
(e.g. for sake
of saving battery's life, keeping network quiet)? How can
one make sure
the security of the phone was not compromised at the
meantime?
-uri
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Message: 2
Date: Fri, 22 Jun 2007 15:16:51 -0400
From: Henning Schulzrinne <hgscs.columbia.edu>
Subject: [SIPForum-discussion] Call for Participation:
IPTComm 2007
To: discussionsipforum.org
Message-ID: <5D2CD26A-29A6-4BC1-BB35-1130600B6F32cs.columbia.edu>
Content-Type: text/plain; charset=US-ASCII; delsp=yes;
format=flowed
Call For Participation
IPTComm 2007
PRINCIPLES, SYSTEMS AND APPLICATIONS OF IP
TELECOMMUNICATIONS
19, 20 July 2007
Columbia University
NY, USA
(in cooperation with ACM SIGCOMM)
http://iptcomm.org
Registration for IPTComm 2007 is now open! Be sure to
register soon
in order to qualify for the early registration discount. The
conference program has been finalized. Some highlights are:
a
stimulating technical program, Jeff Pulver as the keynote
speaker,
Jonathan Rosenberg opening Day Two, a panel discussion with
broad
representation from industry and academia, two tutorials,
and a demos
program. We are now in the process of organizing some
entertaining
social events. Details will be available soon. Hope to see
you in New
York in July!
------------------------------
Message: 3
Date: Fri, 22 Jun 2007 18:49:45 -0600
From: "Tom Cross" <crossgocross.com>
Subject: [SIPForum-discussion] SIP Course
Arap.Comm.College News
Release>>Corporate Learning Division offers
Accelerated Two-day
Courses for Communications Professionals
To: <discussionsipforum.org>
Message-ID: <07b801c7b530$66b71280$ceec15acdv5020us>
Content-Type: text/plain; charset="us-ascii"
Corporate Learning Division of Arapahoe Community College
Partners with National Association to Deliver Two-day
Courses for
Communications Professionals
(June 25, 2007 - Littleton, Colo.) The Corporate Learning
Division of
Arapahoe Community College and the National Association of
Communication
Systems Engineers (NACSE) have partnered to create a program
to train
communications professionals via accelerated two-day
classes. The classes
are focused on bringing current IT/Telecom managers, sales
managers and new
hires up to a level of common understanding of current
telecommunications
technologies such as: the fundamentals of digital
communications; wireless;
and, VoIP and SIP technologies. The classes are certified by
NACSE and
include certificate testing.
"These courses fill a critical gap in the marketplace
for enterprise
executive and channel partner training," noted Bob
Kile, Executive Director
of NACSE. "IT related companies that don't recognize
the negative financial
impact of not having properly trained management will not
stay competitive.
The Technology is simply moving too fast," Kile added.
The ACC/NACSE classes include:
NACSE Voice Business Executive
This comprehensive VoIP training program covers channel
provider and partner
strategies for VoIP. VoIP business, channel solutions, sales
and marketing
strategies are included. Course objectives and a detailed
course outline can
be found at: <h
ttp://www.techtionary.com/nacse/nacse-nvbe.htm>
http
://www.techtionary.com/nacse/nacse-nvbe.htm. This course
will be offered
July 13 and 14 from 9 a.m. to 4 p.m.
NACSE Communication Technology Manager
This course serves to introduce and cultivate one's
understanding of
emerging and converging telecommunications, Internet, data,
wireless and
other advanced technologies. Course objectives and detailed
course outline
can be found <h
ttp://www.techtionary.com/nacse/nacse-nctm.htm>
http
://www.techtionary.com/nacse/nacse-nctm.htm. This course
will be offered
July 20 and 21 from 9 a.m. to 4 p.m.
NACSE Wireless Technology Manager
This course serves to introduce and cultivate one's
understanding of
wireless technologies including cellular, WiFi, WiMax, IMS
and other
advanced technologies. Course objectives and detailed course
outline can be
found at: <h
ttp://www.techtionary.com/nacse/nacse-nwtm.htm>
http
://www.techtionary.com/nacse/nacse-nwtm.htm. This course
will be offered
July 27 and 28 from 9 a.m. to 4 p.m.
NACSE SIP Technology Executive
This course covers enterprise and channel partner
understanding and
implementation of SIP-Session Initiation Protocol solutions.
Course
objectives and detailed course outline can be found at:
<h
ttp://www.techtionary.com/nacse/nacse-nste.htm>
http
://www.techtionary.com/nacse/nacse-nste.htm. This course
will be offered
August 3 and 4 from 9 a.m. to 4 p.m.
All courses will be held at ACC's University Center at
Chaparral campus in
Parker, located three miles east of I-25 and Lincoln Ave at
15653 Brookstone
Drive. Onsite, private or custom course delivery can be
arranged for six or
more students.
For registration information and course costs, contact Bob
Kile at
720.269.4777 or <mailto:rkilenacse.com> rkilenacse.com. Group discounts
are available. For more information on the Corporate
Learning Division of
ACC contact Cindy Nowak at 303.734.3724 or
<mailto:cindy.nowakarapahoe.edu> cindy.nowakarapahoe.edu.
- 30 -
One of the largest colleges in the Colorado Community
College system,
Arapahoe Community College (ACC) has served the south Denver
metropolitan
area since 1966. ACC serves over 18,000 credit and
non-credit students each
year and offers over 100 degree and certificate programs at
its main campus
in Littleton and its University Center at Chaparral in
Parker. ACC offers a
transfer curriculum that will enable students to start as
juniors when they
matriculate to any of Colorado's public four-year
institutions. ACC also
offers professional development, customized training and
non-credit
offerings enjoyed by lifelong learners
Arapahoe Community College Mission Statement:
To provide an accessible, responsive learning environment
that facilitates
the achievement of educational, professional and personal
goals by our
students and other members of our communities in an
atmosphere that embrace
academic excellence, diversity and innovation.
_____
No viruses found in incoming message
Scanned by iolo AntiVirus. 1.1.8.4
http://www.iolo.com <http://www.iolo.c
om/iav/iavpop3>
_____
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http://www.iolo.com <http://www.iolo.c
om/iav/iavsmtp>
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