About snom technology AG

snom is recognized for its high quality Voice over IP (VoIP) business
telephones. Founded in 1996 and based in
Berlin, the company was amongst the first to adopt the session initiation
protocol (SIP), which today is recognized as "the" future telecommunication
standard.

kuthan joens

dataconnection.

unicast l2tp

"Our applications demand that our technology providers deliver on
scale, reliability, and above all quality. We chose Data Connection because our
evaluation indicated they were the right company, with the right
product to fulfil these needs .dataconnection.

Camiant Broadband Policy Controller Enables Seamless Migration To IMS

SPRING VON -- Ingate Systems
(http://www.ingate.

differentiated joens

Business Editors/High-Tech Writers
VON Spring 2005
Booth #829

SAN JOSE, Calif. For more information
please see www.

With support for industry
standards organizations such as 3GPP(TM)/3GPP2, CableLabs(R), and ETSI,
service providers worldwide are looking to Camiant to differentiate their
services through new applications such as SIP-based telephony, video
communications, streaming media, games and commercial services, with quality
of service.

kuthan tunnelling

the leading
provider of policy control solutions for the flawless delivery of IP-based
multimedia applications, today announced that its Broadband Policy Controller
supports IP multimedia subsystem (IMS)-based applications across broadband
networks.

About Ingate Systems

Ingate Systems develops firewall technology and products that enable
SIP-based live communication for the enterprise while maintaining control
and security at the network edge .

3301 3400

The company's MetaSwitch division supplies the
industry's leading Class 5 Softswitch, with both integrated (Compact
Softswitch) and distributed architecture options including call agent,
feature server, media gateway and signaling gateway functionality.0, 3GPP and TISPAN provides policy foundation for
IMS-based applications

MARLBOROUGH, Mass. Voice over IP (VoIP) and
other enhanced multimedia applications are driving the need for a policy
platform that can ensure that services behave as desired, increasing
subscriber satisfaction and guaranteeing superior customer experiences.

About Camiant
Camiant is the leading provider of solutions which enable the flawless
delivery of IP-based multimedia applications. When
combined, these protocols shield users from eavesdroppers, hackers and
spoofers.

crivellari thaler

Session Initiation Protocol (SIP ) is an industry standard
signaling protocol for controlling multi-media sessions, such as
voice , video, and messaging, across packet based networks., operates the
world's largest IP application network for the phone.
IMS provides a business framework for service convergence while also
enabling operators to support a myriad of Session Initiation Protocol (SIP)-
based services including fixed -mobile convergence."
Camiant is very active in driving the standards for policy control as it
relates to PacketCable(TM) and IMS.

differentiated thaler

DC-SIP is part of the VoIP-related protocol solutions offered by
Data Connection, which also include DC-MGCP and DC-Megaco/H.
To discover more about the technical strengths of DC-SIP, and to see a
full features list, go to www.

PacketCable(TM) and CableLabs (R) are trademarks of Cable Television
Laboratories, Inc.com), which develops firewall technology and products
that enable SIP-based live communication for the enterprise while
maintaining control and security at the network edge, and snom, an open
systems provider of high quality VoIP business telephones, today announced
the world's first successful completion of an encrypted VoIP call using the
approved standard protocol SRTP (Secure Realtime Transfer Protocol).

srisuresh sip

We were extremely thorough
in our search for a SIP solution. By leveraging their policy control solution for pre-IMS
applications , Camiant's customers are building a strong policy foundation for
impending IMS deployments.

mealling l2tp

Support for PacketCable 2. Policy control is a key component of IMS and provides the quality of
service (QOS) and charging capabilities for next-generation networks. The result is more robust,
provably -secure solutions, and a wider field of options for end users.

luo crivellari

Camiant is a privately-held company with investors including North Bridge
Venture Partners, Matrix Partners and Pilot House Venture Group .

snom and Ingate have both incorporated SRTP support to their VoIP products.
SRTP was first developed by the Internet Engineering Task Force (IETF) in
2004 as RFC 3711. The SRTP key exchange mechanism used by both vendors is
based on the SDP Security Descriptions draft for media streams
(sdescriptions)."

"With the conclusion of this successful interoperability test, both snom
and Ingate set a benchmark for other vendors to implement similar features
and push security in VoIP environments to the next level," said Olle
Westerberg, Chief Executive Officer, Ingate Systems .

In addition, SRTP uses 128-bit AES for encrypting the RTP payload.

unicast 3306

Tellme combines
open Internet standards and speech technology to power the largest
customer service, directory assistance and consumer phone services
nationwide.

PRESS RELEASE snom and Ingate Secure VoIP Traffic

By working to strict IETF specifications, snom
and Ingate remain committed to open standards and true interoperability . In addition to an extensive line of
Ingate Firewalls, the company also produces the award-winning Ingate
SIParator, a device that connects to an existing network firewall to
seamlessly enable SIP communications.

srisuresh identifiers

All
of Data Connection's protocols are designed and tested for scale,
reliability and portability to numerous environments and applications.com/sip

About Data Connection

Data Connection Limited (DCL) is the leading independent developer
and supplier of Unicast and Multicast IP Routing, MPLS, SIP,
MGCP/Megaco, ATM, and SNA portable products, as well as Web
Conferencing , Voicemail, Unified Messaging, and Directory
applications. Camiant's strong SIP expertise, combined with its web services and QOS
capabilities are enabling IMS and pre IMS-based applications to coexist on the
same network. It creates a unique key stream for each RTP packet, and
transmits encrypted audio packets over data networks, making it almost
impossible for eavesdroppers to retrieve the original media stream from the
encrypted stream.

For more information, visit Ingate Systems at booth #1338 and Snom at booth
#1534 at Spring VON 2006 in San Jose. Ingate Systems AB is headquartered in Sweden with
offices in Stockholm and Linkping.S.com.

luo 3310

"Single-vendor, proprietary
security schemes , developed under wraps, may or may not provide genuine
protection."

A Secure VoIP Environment

Using snom phones with Ingate Firewalls provides users with a secure,
reliable VoIP environment . For more information on Ingate Systems, visit
www.

tunnelling mealling

----

Installation With Tellme Networks Powers Nationwide Directory
Assistance Calls

Data Connection Limited (DCL), the world's leading provider of
communications protocol software, announced today at the Spring VON
2005 show (Booth #829) that Tellme Networks, Inc.com

Data Connection is a trademark of Data Connection Limited and Data
Connection Corporation.

unicast uris

Data Connection SIP Software Supporting Over 1 Billion Calls Per Year

Tellme is using Data Connection's SIP software to connect
directory assistance calls to Tellme's data centers nationwide.ingate.

3301 uris

"Tellme handles a third of all the directory assistance calls made
in the United States. The
MetaSwitch Class 5 Softswitch has been widely deployed among incumbent
and competitive local exchange carriers, as well as operators of
broadband wireless, cable and fiber networks.
Camiant's policy solution, available today, enables service providers to
deploy non-IMS to fully-compliant IMS applications.com.com

"Achieving SRTP interoperability between snom and Ingate Systems marks an
important watershed in the evolution of VoIP security," said Michael
Knieling, VP Marketing for snom technology, AG. 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.

thaler checksum

With over 300 employees, Data Connection is
headquartered in London, UK with US offices in Alameda, CA,
Boxborough, MA, Dallas, TX, and Reston, VA. Through real-time allocation of resources, Camiant enables service
providers to maximize the utilization of bandwidth, enhance their customers'
experience and increase revenue. Our customers are companies who use interoperable technologies
for their enterprise communications. Its wholly -owned subsidiary, Ingate
Systems Inc.

tunnelling uris

We are very happy with our decision,"
added Chevalier.
Net profits have exceeded 20% of revenue every year since the
company was founded in 1981. Customers include BT, Cisco, IBM, Lucent,
Microsoft and Verizon.

To date, only snom and Ingate offer compatible SRTP implementations.

http://www. Ingate has a long history of developing
next-generation firewall technology that solves the NAT/firewall traversal
issue inherent in SIP communications.

clarifications joens

All other trademarks and registered trademarks
are the property of their respective owners. "Camiant's Broadband Policy Controller was designed for
carrier class availability to support critical applications such as VoIP and
IPTV .
3GPP(TM) is a registered trademark of ETSI.

Ideal for voice traffic, SRTP provides a very high level of security for
realtime data with advanced encryption, confidentiality, message
authentication, and replay protection.

3400 differentiated

For more
information, please visit http://www. Both companies base their products on the SIP standard,
also developed by the IETF.

luo unicast

The use of our DC-SIP solution in the Tellme
application is a true testimony to the scale and high reliability of
our products ," said Phil McConnell, Data Connection's CEO. Used with voice data, SRTP provides
one of the most secure environments for Internet telephony and VoIP
applications available.

SRTP is ideal for protecting Voice over IP audio traffic because it can be
used in conjunction with header compression and has no effect on IP Quality
of Service.

checksum 3gpp

(TM) has incorporated
Data Connection's DC-SIP software solution into their network,
enabling over 1 billion directory assistance calls using VoIP this
year .ingate. By contrast, standard security strategies receive wide-ranging
scrutiny by the developer community, and the process of interoperability
testing forces mutual technology disclosure.

srisuresh 3301

Tellme Networks, located in Mountain View, Calif.248., Camiant, Inc.
"Camiant has long anticipated a shift to differentiated applications
through policy control," said Susie Kim Riley, founder and chief technical
officer for Camiant. "We look forward to
continued interoperability testing to widen the group of vendors that
comply with the open standard, to provide customers with a secure VoIP
solution. Together with our partners, snom
offers solutions that reduce the total cost of ownership, maximize the
overall return on investment into telephony infrastructure, and make our
customers independent from a single vendor., is located in Hollis, New Hampshire, with a U. technology
center in Frisco, Texas.

3306 wasserman

SIP is an
essential part of the family of Voice over IP (VoIP) technologies that
is powering innovative companies, such as Tellme, to offer more
services and flexibility to their customers but at significantly less
cost and complexity than that of traditional voice networks .
"Directory assistance will drive millions of SIP sessions per day
to the Tellme data centers , which essentially makes our network one of
the largest SIP endpoints in the world," said Troy Chevalier , Tellme's
VP of Platform Engineering. Camiant's recognized technology
leadership and proven products have enabled then to integrate with many of the
leading IMS vendors.camiant. The
successful completion of interop testing between the two companies offers
customers a secure solution for voice traffic: the combination of a snom
phone with an Ingate Firewall ensures a secure, reliable VoIP
environment . Both products support Transport Layer Security
(TLS) for secure SIP signaling and SRTP for encrypting audio streams. snom is privately held and incorporated under German law.