SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                             ----------------------


                                   F O R M 6-K

       REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
                   UNDER THE SECURITIES EXCHANGE ACT OF 1934

                         For the month of September 2006

                                 RADVISION LTD.
                              (Name of Registrant)


               24 Raoul Wallenberg Street, Tel Aviv 69719, Israel
                     (Address of Principal Executive Office)

                  Indicate by check mark whether the registrant files or will
file annual reports under cover of Form 20-F or Form 40-F.

                           Form 20-F [X]    Form 40-F [ ]

                  Indicate by check mark if the registrant is submitting the
Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [ ]

                  Indicate by check mark if the registrant is submitting the
Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [ ]

                  Indicate by check mark whether by furnishing the information
contained in this Form, the registrant is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under the Securities
Exchange Act of 1934.

                                 Yes [ ] No [X]

                  If "Yes" is marked, indicate below the file number assigned to
the registrant in connection with Rule 12g3-2(b): 82-______________


This Form 6-K is being incorporated by reference into the Registrant's Form S-8
Registration Statements File Nos. 333-45422, 333-53814, 333-55130, 333-66250,
333-82488, 333-104377, 333-116964 and 333-127013.





                                 RADVision Ltd.

6-K Items


     1.   Press  release  re  RADVISION  and Ingate  Systems  Partner to Provide
          Multipoint  Conferencing for Microsoft Unified Communications Platform
          across External Networks dated September 11, 2006.

     2.   Press  release re  RADVISION's  ProLab(TM)  IMS Test  Solution Tool is
          First to Offer Complete IMS User Equipment  Simulation for IMS Vendors
          and Service Providers dated September 11, 2006.

     3.   Press release re RADVISION(R) Brings Advanced Conferencing  Capability
          to IBM Lotus Sametime 7.5 dated September 13, 2006.







                                                                          ITEM 1







Press Release                                                  Source: RADVISION

RADVISION and Ingate Systems Partner to Provide Multipoint Conferencing for
Microsoft Unified Communications Platform across External Networks

Monday September 11, 7:00 am ET

Partnership Extends Multipoint Conferencing Outside the LAN and Across Corporate
Networks, to the Growing Base of Microsoft Office Live Communications Server and
Communicator Users

BOSTON--(BUSINESS WIRE)--Sept. 11, 2006--RADVISION(R)(Nasdaq: RVSN - News), a
leading provider of video network infrastructure and developer tools for
unified visual communications over IP, 3G, and emerging next-generation
networks, and Ingate(R) Systems, providing next-generation SIP-based firewall
technology, today announced that they will partner to extend the capabilities of
RADVISION's Click to Meet(R) for Microsoft Office multipoint audio and video
conferencing solution for the Microsoft Unified Communications platform.

RADVISION's Click to Meet for Microsoft Office is a scalable conferencing
platform that adds multiparty video and VoIP audio capabilities to Microsoft
Office Live Communications Server and Microsoft Office Live Meeting
applications, providing a rich conferencing experience. It also provides the
option to extend the reach of Live Communications Server and Live Meeting
conferences by providing connection to traditional video conferencing systems,
telephones, cell phones and 3G video phones.

Microsoft's Live Communications Server uses the industry-standard protocol
Session Initiation Protocol (SIP) with special extensions for conferencing
control. Some enterprise firewalls block this SIP traffic and connections cannot
be established. Combining Ingate Systems' far-end firewall/Network Address
Translation (NAT) traversal solutions with RADVISION's Click to Meet for
Microsoft Office extends the native firewall traversal capabilities in Click to
Meet to support the specific SIP traffic used by Live Communications Server.
This allows businesses to utilize the full capabilities of the RADVISION and
Live Communication Server solution not just within their own enterprise, but
with outside workers, and partners, customers, and vendors who are also using
Microsoft's Live Communications Server.

The Ingate and RADVISION partnership has provided for the design and
interoperability testing of the optimized joint solution which allows firewall
traversal without compromising an enterprise's firewall effectiveness. The
partnership will continue to provide ongoing interoperability design and testing
and joint sales and marketing activities.

"The number of Microsoft Live Communications Server installations is growing
significantly. By tapping into this user base, RADVISION together with Ingate
Systems is well positioned to lead the market in secure video conferencing
solutions that connect to those outside the LAN," said Olle Westerberg, Chief
Executive Officer, Ingate Systems. "Video conferencing is a natural extension to
Live Communications Server functions. Ingate is proud to offer secure far-end
firewall/NAT traversal to RADVISION's Click to Meet users with Microsoft's Live
Communications Server as we believe there is a great demand for video
conferencing solutions that will connect enterprise users to remote workers,
satellite offices, customers, and suppliers."

"Enabling the rich functionality that Click to Meet for Microsoft Office
provides to Microsoft's Live Communications Server users through NAT and
firewalls is very important to our customers," said Bob Romano, Vice President
of Enterprise Marketing at RADVISION. "This enables them to fully utilize
RADVISION's audio and video capabilities with workers outside the corporate
network and with customers and suppliers. This partnership with Ingate provides
us with an integrated, transparent solution requiring no extra configuration for
the end user."







About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP and 3G networks. With its complete set of standards-based video networking
infrastructure and developer toolkits for voice, video, data and wireless
communications, RADVISION is driving the unified communications evolution by
combining the power of video, voice, data and wireless - for high definition
videoconferencing systems, innovative services on converged IP and 3G networks,
and highly scalable video-enabled desktop platforms for IP and emerging
next-generation networks. For more information about RADVISION, visit
www.radvision.com.

About Ingate(R) Systems

Ingate(R) Systems develops firewall technology and products that enable
SIP-based live communication for the enterprise while maintaining control and
security at the network edge. Ingate has a long history of developing
next-generation firewall technology that solves the NAT/firewall traversal issue
inherent in SIP communications. In addition to an extensive line of Ingate
Firewalls(R), the company also produces the award-winning Ingate SIParator(R), a
device that connects to an existing network firewall to seamlessly enable SIP
communications. Ingate products currently protect the networks of retail
companies, financial institutions, industrial firms, government agencies and
small-to-large enterprises throughout Europe, Asia and North America. Ingate
Systems AB is headquartered in Sweden with offices in Stockholm and Linkoping.
Its wholly owned subsidiary, Ingate Systems Inc., is located in Hollis, New
Hampshire, with a U.S. technology center in Frisco, Texas. For more information
on Ingate Systems, visit www.ingate.com.

This press release contains forward-looking statements that are subject to risks
and uncertainties. Factors that could cause actual results to differ materially
from these forward-looking statements include, but are not limited to, general
business conditions in the industry, changes in demand for products, the timing
and amount or cancellation of orders and other risks detailed from time to time
in RADVISION's filings with the Securities Exchange Commission, including
RADVISION's Form 20-F Annual Report. These documents contain and identify other
important factors that could cause actual results to differ materially from
those contained in our projections or forward-looking statements. Stockholders
and other readers are cautioned not to place undue reliance on these
forward-looking statements, which speak only as of the date on which they are
made. We undertake no obligation to update publicly or revise any
forward-looking statement.

The names of actual companies and products mentioned herein may be the
trademarks of their respective owners.

Contact:
For RADVISION
Corporate:
Tsipi Kagan, 201-689-6340
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Kristin Conforti, 516-320-6839
kristin@dukaspr.com
or
Investor Relations:
Comm-Partners LLC
June Filingeri, 203-972-0186
junefil@optonline.net
or
Ingate Systems
Hillary Call, 917-414-9262
hillary@ingate.com









                                                                          ITEM 2






Press Release                                                  Source: RADVISION

RADVISION's ProLab(TM) IMS Test Solution Tool is First to Offer Complete IMS
User Equipment Simulation for IMS Vendors and Service Providers

Monday September 11, 9:00 am ET

Next Generation Network Operators, Service Providers and User Equipment Vendors
to Benefit from Single, Multi-Protocol, User-Friendly Testing Package

FAIR LAWN, N.J.--(BUSINESS WIRE)--Sept. 11, 2006--RADVISION(R)
(Nasdaq: RVSN - News) a leading provider of video network infrastructure and
developer tools for unified visual communications over IP, 3G, and emerging
next-generation networks, today announced the worldwide availability of its
ProLab(TM) IMS Test Solution.

The ProLab IMS Test Solution is part of RADVISION's ProLab Test Management
Suite, providing IMS, SIP, H.323 and 3G-324M testing in a single, easy-to-use
product. ProLab IMS is designed to play a critical and vital role in the product
development cycle and quality assurance, and helps manufacturers achieve fast
time-to-market. With hundreds of built-in plug-and-play scripts, test case media
files, advanced IMS User Equipment (UE) simulation, online signaling & media
analysis and media quality, the ProLab IMS Test Solution provides an exhaustive
UE testing platform.

The ProLab IMS Test Solution was developed based on the expertise and know-how
acquired during development of RADVISION's award winning, complete suite of
protocol toolkits. In keeping with RADVISION's commitment to industry
leadership, the ProLab IMS Test Solution is fully compliant with IETF and 3GPP
standards.

"ProLab IMS is the first testing suite to provide a complete testing solution
for emerging IMS and IMS SIP products," said Zeev Bikowsky, General Manager of
RADVISION's Technology Business Unit. "ProLab is also the only tool that
performs media and protocol analysis, including packet distribution, packet
loss, bandwidth, errors, and more."

The ProLab IMS Test Solution can be used to perform advanced analysis on
incoming and outgoing media streams, including packet distribution, packet loss,
and errors. In order to speed development and system testing, the tool leverages
an extensive library of media types to emulate virtually any end device.
Designed for ease of use, the ProLab IMS Test Solution sends multiple streams of
real audio/video traffic to the tested device and replicates a wide variety of
network conditions and environments, including 3G-324M, SIP and H.323.

Built from the ground up to streamline product development, RADVISION's ProLab
IMS Test Solution features built-in plug-and-play scripts, enabling it to
register and perform calls without the need to know or learn script language
programming. In addition, it comes with an advanced script language for
developing complex and special case test scenarios with the ability to interact
in sophisticated network topologies. Additional built-in features include test
case media files, full IMS simulation testing, codec simulation, online analysis
and media quality.

ProLab IMS is well suited for use as a complete testing platform by network
equipment manufacturers and service providers who must evaluate and validate new
hardware and applications such as videophones, P-CSCF and S-CSCF I-CSCF , User
Equipment, IMS functions, MCUs and gateways.

The complete ProLab IMS Test Solution and the ProLab Test Management Suite are
currently commercially available.







About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP and 3G networks. With its complete set of standards-based video networking
infrastructure and developer toolkits for voice, video, data and wireless
communications, RADVISION is driving the unified communications evolution by
combining the power of video, voice, data and wireless - for high definition
videoconferencing systems, innovative services on converged IP and 3G networks,
and highly scalable video-enabled desktop platforms for IP and emerging
next-generation networks. For more information about RADVISION, visit
www.radvision.com.

This press release contains forward-looking statements that are subject to risks
and uncertainties. Factors that could cause actual results to differ materially
from these forward-looking statements include, but are not limited to, general
business conditions in the industry, changes in demand for products, the timing
and amount or cancellation of orders and other risks detailed from time to time
in RADVISION's filings with the Securities Exchange Commission, including
RADVISION's Form 20-F Annual Report. These documents contain and identify other
important factors that could cause actual results to differ materially from
those contained in our projections or forward-looking statements. Stockholders
and other readers are cautioned not to place undue reliance on these
forward-looking statements, which speak only as of the date on which they are
made. We undertake no obligation to update publicly or revise any
forward-looking statement.

The names of actual companies and products mentioned herein may be the
trademarks of their respective owners.


Contact:
Corporate:
RADVISION
Tsipi Kagan, 201-689-6340
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Kristin Conforti, 516-320-6839
kristin@dukaspr.com
or
Investor Relations:
Comm-Partners LLC
June Filingeri, 203-972-0186
junefil@optonline.net








                                                                          ITEM 3







Press Release                                                  Source: RADVISION

RADVISION(R) Brings Advanced Conferencing Capability to IBM Lotus Sametime 7.5

Wednesday September 13, 7:00 am ET

RADVISION's CEO to Participate on Luminary Industry Panel at the IBM "Real-Time,
Right Now" Lotus Sametime 7.5 Launch Event in New York City NEW YORK & FAIR
LAWN, N.J.--(BUSINESS WIRE)--Sept. 13, 2006--RADVISION (Nasdaq: RVSN - News), a
leading provider of video network infrastructure and developer tools for unified
visual communications over IP, 3G, and emerging next-generation networks, is
participating today in the IBM Real-Time, Right Now Lotus Sametime 7.5 launch
event in New York City. RADVISION's CEO Boaz Raviv will be part of a business
partner panel of industry experts. In addition, the company will demonstrate its
advanced conferencing solutions for IBM Lotus Sametime 7.5 software to attending
customers, press and analysts.

RADVISION's unified conferencing solution for Lotus Sametime 7.5 is based on its
award-winning Click to Meet(R) conferencing platform. It enables users to create
and initiate multi-participant audio and video conferences directly from Lotus
Sametime. By adding RADVISION's unique multi-window video and audio plug-in to
Lotus Sametime 7.5, users can now escalate Lotus Sametime instant messaging chat
and web conferencing sessions into full multi-party audio and video sessions and
extend those conferences to other devices such as standards-based
videoconferencing systems, 3G videophones or virtually any wired or wireless
phone available today.

"We are pleased that RADVISION is continuing its support of the Lotus Sametime
real-time collaboration platform with its advanced conferencing solutions," said
Ken Bisconti, Vice President of Lotus Software Products, IBM. "The RADVISION
plug-in for Lotus Sametime 7.5 provides users with many of the important
benefits of a unified communications platform such as multi-participant audio,
video and data conferencing, and multi-device functionality."

"We are pleased to continue our long history of providing advanced conferencing
enhancements to IBM collaboration products," said Boaz Raviv, CEO of RADVISION.
"By leveraging our experience with previous versions of Lotus Sametime, and IBM
Lotus Notes and Domino, we are now providing a comprehensive solution for Lotus
Sametime 7.5. Now anyone using a telephone, mobile device, or video-conferencing
system can participate in a Lotus Sametime multi-party voice or video call
thereby extending conferencing capabilities inside the enterprise and outside to
the mobile worker."

About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP and 3G networks. With its complete set of standards-based video networking
infrastructure and developer toolkits for voice, video, data and wireless
communications, RADVISION is driving the unified communications evolution by
combining the power of video, voice, data and wireless - for high definition
videoconferencing systems, innovative services on converged IP and 3G networks,
and highly scalable video-enabled desktop platforms for IP and emerging
next-generation networks. For more information about RADVISION, visit
www.radvision.com.

This press release contains forward-looking statements that are subject to risks
and uncertainties. Factors that could cause actual results to differ materially
from these forward-looking statements include, but are not limited to, general
business conditions in the industry, changes in demand for products, the timing
and amount or cancellation of orders and other risks detailed from time to time
in RADVISION's filings with the Securities Exchange Commission, including
RADVISION's Form 20-F Annual Report. These documents contain and identify other
important factors that could cause actual results to differ materially from
those contained in our projections or forward-looking statements. Stockholders
and other readers are cautioned not to place undue reliance on these
forward-looking statements, which speak only as of the date on which they are
made. We undertake no obligation to update publicly or revise any
forward-looking statement.










IBM, Lotus, Notes, Sametime and Domino are trademarks of International Business
Machines Corporation in the United States, other countries, or both. The names
of actual companies and products mentioned herein may be the trademarks of their
respective owners.

Contact:
RADVISION
Tsipi Kagan, 201-689-6340
cfo@radvision.com
 or
Media Relations:
Dukas Public Relations
Kristin Conforti, 516-320-6839
kristin@dukaspr.com
 or
Investor Relations:
Comm-Partners LLC
June Filingeri, 203-972-0186
junefil@optonline.net










                                   SIGNATURES


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


                               RADVISION LTD.
                                  (Registrant)



                               By /s/Arnold Taragin
                                  -----------------
                                  Arnold Taragin
                                  Corporate Vice President and General Counsel



Date:  September 29, 2006