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 August 2008

                                 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, 333-127013 and 333-141654.





                                 RADVision Ltd.

6-K Items


     1.   Press  release  re  RADVISION  to  Present  at  RBC  Capital   Markets
          Technology,  Media &  Communications  Conference  on August  7th dated
          August 4, 2008.

     2.   Press  release re  RADVISION's  New eVident  Ensures  Enterprise-Level
          Video and Voice  Quality of  Experience  and Network  Readiness  dated
          August 4, 2008.

     3.   Press  release re  RADVISION  Posts  Annual  Report on its  Website to
          Further  its Role in  Environmental  Responsibility  dated  August 25,
          2008.

     4.   Press  release re  RADVISION  to Present  at  Kaufman  Bros.  Investor
          Conference on September 3rd dated August 28, 2008.







                                                                          ITEM 1







Press Release                                                  Source: RADVISION

RADVISION to Present at RBC Capital Markets Technology, Media &
Communications Conference on August 7th

Monday August 4, 7:00 am ET

Presentation to be webcast and archived

TEL AVIV, Israel--(BUSINESS WIRE)--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, announced
today that Adi Sfadia, CFO, and Robert Romano, Vice President of Enterprise
Marketing, will speak at the RBC North American Technology Conference in San
Francisco on Thursday, August 7th, from 9:00 to 9:25

The live webcast of the presentation can be accessed on the RADVISION web site
at www.radvision.com/InvestorEvents/RBC or by clicking on
http://www.wsw.com/webcast/rbc91/rvsn/. An audio replay of the event will be
available on the RADVISION web site approximately two hours after the live event
and accessible for thirty days.

About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP, 3G and IMS 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 video conferencing systems, innovative converged mobile services, and
highly scalable video-enabled desktop platforms on IP, 3G and emerging
next-generation IMS networks. To gain additional insights into our products,
technology and opinions, visit blog.radvision.com. For more information about
RADVISION, visit www.radvision.com.

Contact:
RADVISION
Adi Sfadia, +1 201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Comm-Partners LLC
June Filingeri, +1 203-972-0186
junefil@optonline.net







                                                                          ITEM 2







Press Release                                             Source: RADVISION Ltd.

RADVISION's New eVident Ensures Enterprise-Level Video and
Voice Quality of Experience and Network Readiness

Monday August 4, 9:00 am ET

An enterprise-level video testing software suite, eVident enhances video and
voice quality before and after video network deployment for enterprises, service
providers and system integrators

TEL AVIV, Israel--(BUSINESS WIRE)--RADVISION(R) Ltd. (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 new video and voice network
evaluation solution, eVident.

Enabling IT managers to make informed decisions about resources, equipment and
policies, RADVISION's eVident is an ideal tool to evaluate network preparedness
for video and voice communications. eVident is also used to test and monitor
enterprise networks for problems in real-time, optimizing voice and video
quality.

"Since video and voice quality is an important parameter in measuring the
reliability of a network and the readiness of the video service, it is very
important to constantly examine network conditions to ensure reliability and
quality of experience," said Elie Cohen, eVident Product Manager at RADVISION.

eVident enables enterprises and service providers to improve end-user experience
as well as proactively assess network readiness. Further benefits include
eVident's ability to determine multimedia quality deterioration as multimedia
traffic increases, prevent network deterioration as well as test V(2)oIP
infrastructure.

To ensure optimal network performance, eVident is based on internationally
accepted methods used by private industry, public sector and standards bodies
worldwide; to conduct subjective video quality tests calibrated using input from
RADVISION's Human Vision video quality program. This program leverages input
provided by human subjects to accurately assess user video experience.

eVident also offers comprehensive automated test procedures for VoIP. With rich
features, customizable scripts and canned media, eVident is an ideal tool for IT
managers to proactively ensure the quality of service of their networks in real
time.

eVident's voice and video network evaluation capabilities allow enterprises to
accelerate their RADVISION SCOPIA Desktop video conferencing and legacy room
conferencing system implementations, ensuring they have the highest quality
connectivity.






About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP, 3G and IMS 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 video conferencing systems, innovative converged mobile services, and
highly scalable video-enabled desktop platforms on IP, 3G and emerging
next-generation IMS networks. To gain additional insights into our products,
technology and opinions, visit blog.radvision.com. 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.

Contact:
Corporate:
RADVISION
Adi Sfadia, +1-201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Sean Carney/ Todd Barrish
+1-212-704-7385
sean@dukaspr.com / todd@dukaspr.com
or
Investor Relations:
Comm-Partners LLC
June Filingeri, +1-203-972-0186
junefil@optonline.net






                                                                          ITEM 3






Press Release                                          Source: RADVISION(R) Ltd.

RADVISION Posts Annual Report on its Website to Further its Role
in Environmental Responsibility

Monday August 25, 9:00 am ET

Leading provider of Video Conferencing technology that enables telecommuting to
reduce carbon emissions advances environmental commitment through electronic
availability of Annual Report

TEL AVIV, Israel--(BUSINESS WIRE)--RADVISION(R) Ltd. (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 that it has posted its annual report containing its audited
consolidated financial statements for the year ended December 31, 2007 on its
Web site (http://www.radvision.com/Corporate/Investors/SECFilings/). The
Company's annual report on Form 20-F was filed with the U.S. Securities and
Exchange Commission on June 24, 2008 and is also available on the SEC Web site
(http://www.sec.gov). Shareholders may receive a hard copy of the annual report
free of charge upon request.

In line with a recent change in NASDAQ regulations allowing companies to make
their annual reports available electronically and avoid printing hard copies for
each shareholder, RADVISION has opted to post the annual report on its Web site
and continue its track record of being environmentally responsible. By doing so,
the company will save thousands of pages of paper, thereby reducing costs while
being environmentally conscious as well.

RADVISION is committed to reducing the environmental impact of daily business
and, through its award winning SCOPIA Conferencing Platform, the company
provides an effective telecommuting option to businesses and employees. Through
videoconferencing, businesses are able to reduce carbon emissions by reducing
commuting and business travel time, which significantly lowers the company's
carbon footprint. Telecommuting via video conferencing also benefits businesses
by:

     o    Cutting back on the amount of energy used in daily operations

     o    Better utilizing its workforce across the country and the world

     o    Providing a better  work/life  balance for its employees,  who can now
          spend time usually spent traveling with their families

"RADVISION recognizes that businesses need to operate with the highest levels of
efficiency while also remaining eco-friendly and we're proud to offer a
technology that accomplishes both goals," said Boaz Raviv, CEO of RADVISION.
"Video conferencing is not the new frontier of communication in business, it is
the new reality. By offering businesses a way to connect their employees across
the world without ever leaving their homes or offices, RADVISION is able to
provide a cost-effective, environmentally responsible method of global unified
communications."

The latest release of RADVISION's SCOPIA Conferencing Platform, Version 5.6,
delivers High Definition (HD) desktop video, multiparty audio and video to IBM
Lotus Sametime, standards-based video conferencing connectivity to Microsoft
Office Communicator 2007 and support for Cisco Unified Videoconferencing,
powered by SCOPIA technology.

Earlier this year, RADVISION was presented with the prestigious 2008 North
American Frost & Sullivan Award for Product Differentiation Innovation for the
SCOPIA Conferencing Platform. This was in recognition of market leading support
for standard and High Definition video, integration of desktop conferencing and
advanced network management.





About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP, 3G and IMS 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 video conferencing systems, innovative converged mobile services, and
highly scalable video-enabled desktop platforms on IP, 3G and emerging
next-generation IMS networks. To gain additional insights into our products,
technology and opinions, visit blog.radvision.com. 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.

Contact:
Corporate:
RADVISION
Adi Sfadia, +1-201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Sean Carney/ Todd Barrish
+1-212-704-7385
sean@dukaspr.com / todd@dukaspr.com
or
Investor Relations:
Comm-Partners LLC
June Filingeri, +1-203-972-0186
junefil@optonline.net






                                                                          ITEM 4






Press Release                                                  Source: RADVISION

RADVISION to Present at Kaufman Bros. Investor Conference on September 3rd

Thursday August 28, 8:00 am ET

Presentation to be webcast and archived

TEL AVIV, Israel--(BUSINESS WIRE)--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, announced
today that Adi Sfadia, Chief Financial Officer, and Robert Romano, Vice
President of Enterprise Marketing, will speak at the Kaufman Bros. 11th Annual
Investor Conference in New York on Wednesday, September 3rd, from 2:00 to 2:30
p.m. (Eastern).

The live webcast of the presentation can be accessed on the RADVISION web site
at www.radvision.com/InvestorEvents/KBRO or by clicking on
http://www.wsw.com/webcast/kbro13/rvsn/. An audio replay of the event will be
available on the RADVISION web site approximately two hours after the live event
and accessible for thirty days.

About RADVISION

RADVISION (Nasdaq: RVSN - News) is the industry's leading provider of
market-proven products and technologies for unified visual communications over
IP, 3G and IMS 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 video conferencing systems, innovative converged mobile services, and
highly scalable video-enabled desktop platforms on IP, 3G and emerging
next-generation IMS networks. To gain additional insights into our products,
technology and opinions, visit blog.radvision.com. For more information about
RADVISION, visit www.radvision.com.

Contact:
RADVISION
Adi Sfadia, +1 201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Investors:
Comm-Partners LLC
June Filingeri, +1 203-972-0186
junefil@optonline.net







                                    SIGNATURE


         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/ Rael Kolevsohn
                                    ------------------
                                    Rael Kolevsohn
                                    Corporate Vice President and General Counsel


Date: August 29, 2008