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 April 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  Attains Gold  Certified  Partner Status in
          Microsoft Partner Program dated April 8, 2008.

     2.   Press release re RADVISION to Showcase  Advanced  Video  Solutions and
          Interoperability for Unified  Communications at Interop Las Vegas 2008
          dated April 29, 2008.








                                                                          ITEM 1







Press Release                                             Source: RADVISION Ltd.

RADVISION Attains Gold Certified Partner Status in Microsoft Partner Program

Tuesday April 8, 2:00 am ET

RADVISION Further Distinguishes Itself by Earning a Microsoft Competency in
ISV/Software Solutions - 3 Years Running

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 IMS
networks, today announced it has attained Gold Certified Partner status in the
Microsoft Partner Program with a competency in ISV/Software Solutions for the
third straight year, recognizing RADVISION's expertise and impact in the
technology marketplace. As a Gold Certified Partner, RADVISION has demonstrated
expertise with Microsoft technologies and proven ability to meet customers'
needs. Microsoft Gold Certified Partners receive a rich set of benefits,
including access, training and support, giving them a competitive advantage in
the channel.

RADVISION recently introduced its SCOPIA Microsoft Office Communications Server
(OCS) 2007 Connector providing advanced video conferencing system
interoperability to Microsoft Office Communications Server 2007. The SCOPIA
Connector enhances the Microsoft solution providing the capability for Office
Communicator users to participate in conferences with standards-based video
conferencing systems and devices. The SCOPIA Connector is a simple-to-use,
highly flexible tool allowing OCS 2007 users to join a meeting hosted on the
SCOPIA Conferencing Platform. With it, Office Communicator desktop users have
full interoperability with video conferencing room systems including the latest
HD (High Definition) endpoints with continuous presence multipoint video.

"RADVISION has a significant history of support of Microsoft technologies. Our
unique expertise in creating solutions enhancing Microsoft's Real Time
Communications and Unified Communications initiatives has been recognized with
the attainment of Microsoft Gold Certified Partnership status for the third
straight year," said Zeev Bikowsky, General Manager Networking Business Unit for
RADVISION. "The benefits provided through our Gold Certified Partner status will
allow us to continue to enhance the offerings that we provide for customers."

"Customers are looking for partner companies that can bridge the gap between
their business demands and technology capabilities," said Allison Watson, vice
president of the Worldwide Partner Sales and Marketing Group at Microsoft Corp.
"They need to trust in a company that can act as an expert adviser for their
long-term strategic technology plans. Microsoft Gold Certified Partners, which
have certified expertise and direct training and support from Microsoft, can
build a positive customer experience with our technologies. Today, Microsoft
recognizes RADVISION as a Gold Certified Partner for demonstrating its expertise
providing customer satisfaction using Microsoft products and technology."

As one of the requirements for attaining Gold Certified Partner status,
RADVISION had to declare a Microsoft Competency. Microsoft Competencies are
designed to help differentiate a partner's capabilities with specific Microsoft
technologies to customers looking for a particular type of solution. Each
competency has a unique set of requirements and benefits, formulated to
accurately represent the specific skills and services that partners bring to the
technology industry.

The ISV/Software Solutions Competency recognizes the skill and focus that
partners bring to a particular solution set. Microsoft Gold Certified Partners
that have obtained this competency have a successful record of developing and
marketing packed software based on Microsoft technologies.






"Solutions competencies are an important way for Microsoft to better enable
independent software vendors (ISVs) to meet customer needs," said Sanjay
Parthasarathy, corporate vice president of the Developer & Platform Evangelism
Group at Microsoft. "They allow ISVs to keep and win customers through their
deep knowledge of solutions-based Microsoft platform technologies. Microsoft has
a long history of working closely with ISV partners to help them deliver
compelling solutions and applications to our mutual customers, and the Microsoft
Competencies are an important step in continuing to enhance vital relationships
with ISVs worldwide."

The Microsoft Partner Program was launched in October 2003 and represents
Microsoft's ongoing commitment to the success of partners worldwide. The program
offers a single, integrated partnering framework that recognizes partner
expertise, rewards the total impact that partners have in the technology
marketplace, and delivers more value to help partners' businesses be successful.

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. 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:
RADVISION Ltd.
Tsipi Kagan, +1 201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Kristin Conforti/ Todd Barrish
+1 212-704-7385
kristin@dukaspr.com / todd@dukaspr.com
or
Investor Relations:
Comm-Partners LLC
June Filingeri, +1 203-972-0186
junefil@optonline.net







                                                                          ITEM 2






Press Release                                          Source: RADVISION(R) Ltd.

RADVISION to Showcase Advanced Video Solutions and Interoperability for Unified
Communications at Interop Las Vegas 2008

Tuesday April 29, 9:00 am ET

RADVISION SCOPIA Technology Demonstrated At the Core of Video-enabled Unified
Communications, IBM Lotus Solution Enhanced for Lotus Notes and Domino

LAS VEGAS & 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 IMS networks, today announced that from April 29th - May 1st at
the Interop exhibition in Las Vegas, RADVISION will demonstrate multiple
technology integrations with its unified communications partners showcasing the
power of unified visual communications with RADVISION technology at the core.

At Interop booth 1577, RADVISION will be demonstrating:

     o    IBM Lotus  Sametime  with  multiparty  audio and video from the SCOPIA
          Conferencing Platform

     o    Microsoft  Office   Communications   Server  2007  video  conferencing
          connectivity via SCOPIA

     o    Cisco Unified Videoconferencing powered by SCOPIA technology

     o    Interoperability  between the IBM,  Microsoft,  and Cisco solutions in
          addition to HD (high  definition)  room based video  conferencing  and
          video telephony

IBM Lotus Sametime with multiparty audio and video from the SCOPIA Conferencing
Platform

RADVISION's SCOPIA Conferencing Platform with SCOPIA Desktop brings advanced
conferencing capability to IBM's next generation unified communications and
collaboration platform enhancing the instant messaging and conferencing
capabilities of Lotus Sametime by enabling users to create and initiate
multiparty audio and video conferences directly from within Lotus Sametime.

New today are enhancements to the solution providing scheduling and directory
integration with IBM Lotus Notes and Lotus Domino. Now users can schedule SCOPIA
hosted meetings from Lotus Notes in addition to having their username and
password credentials authenticated against Lotus Domino.

Microsoft Office Communications Server 2007 video conferencing connectivity via
SCOPIA

The SCOPIA Office Communications Server (OCS) 2007 Connector enhances the latest
Microsoft unified communications offering providing the capability for Office
Communicator users to participate in conferences with standards-based video
conferencing systems and devices. The SCOPIA Connector is a simple to use,
highly flexible tool allowing OCS 2007 users to join a meeting hosted on the
SCOPIA Conferencing Platform using their native Office Communicator client. Now
Office Communicator desktop users have full interoperability with video
conferencing room systems including the latest high definition endpoints with
continuous presence multipoint video.

Cisco Unified Videoconferencing powered by SCOPIA technology

The Cisco Unified Videoconferencing System is integrated into Cisco Unified
Communications to enable connectivity with a broad range of room and desktop
video systems and communications environments. RADVISION provides the
infrastructure for Cisco Unified Videoconferencing, including MCUs, Gateways and





software for setting up and managing video sessions. Cisco Unified
Videoconferencing includes desktop video that extends the capabilities of the
Cisco Unified Videoconferencing MCU to remote users with a free, Web-based
client that includes H.239 data collaboration, embedded firewall and NAT
traversal and conference streaming. This provides the same continuous presence
and data sharing capabilities as video conferencing room systems extending their
reach and impact.

"Enterprises today have a broad array of options available to them for
communications including: unified communications platforms from the major
vendors, telepresence systems, HD room systems, desktop video and video
telephony - with most enterprises having some combination of these. Natively,
they don't easily interoperate with each other and increase the risk of creating
islands of communication," said Zeev Bikowsky, General Manager Networking
Business Unit for RADVISION. "We invite you to visit us at Interop where we will
show interoperability between the IBM, Microsoft, and Cisco applications
including high definition room-based video conferencing and video telephony.
RADVISON's SCOPIA technology provides users the freedom to choose their
preferred application or use them all."

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. 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 Contact:
RADVISION
Tsipi Kagan, +1-201-689-6340
Chief Financial Officer
cfo@radvision.com
or
Media Relations:
Dukas Public Relations
Sean Carney, +1-212-704-7385
sean@dukaspr.com
or
Todd Barrish, +1-212-704-7385
todd@dukaspr.com
or
Investor Relations:
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: April 30, 2008