Interphase Announces iNAV 9400 Signaling Gateway Available on Solaris 10.

High Performance Netra T2000[TM] Based Solution Delivers Scalability and Reliability

BARCELONA, Spain -- Interphase Corporation (NASDAQ: INPH), a leading international supplier of next-generation networking technologies, today announced the availability of its iNAV 9400[R] Signaling Gateway product integrated with the Solaris[TM] 10 Operating System (OS) on a Netra T2000[TM] based NEBS certified rack mount server platform enabled by Interphase's industry leading PCI/PCI-Express based T1/E1/J1 communications controller solutions. The signaling gateway is a key network node that provides SS7 to SIGTRAN signaling interworking and enables seamless integration of legacy SS7 signaling based networks into the emerging all IP network.

"We are pleased to add Interphase's iNAV 9400 to a growing list of adopters of the Solaris 10 OS running on Sun's Netra T2000 telecommunications server platforms," said Juan Carlos Soto, vice president of Market Development at Sun Microsystems. "The Solaris 10 OS delivers superb performance advantages while creating efficiencies to increase scalability, enabling quicker time to market for our equipment manufacturer customers, which ultimately allows them to rapidly address the needs of service providers."

The iNAV 9400 Signaling Gateway is a carrier grade, cost-effective signaling solution that can be effectively scaled to meet increasing traffic demand. The gateway can operate either as a signaling end point (SEP) or as a signaling transfer point (STP) in SS7 and IP SIGTRAN networks for SS7 signaling. This innovative product provides an upgrade path to deploy new IP-based services while maintaining interoperability with the Public Switched Telephone Network (PSTN). In conformance to IETF standards, the iNAV 9400 Signaling Gateway has been fully integrated with fault tolerant capabilities of SCTP over IP. The well-proven SS7 interface and 1+1 Active-Active carrier, highly-available architecture of the iNAV 9400 virtually eliminates network message loss and brings more than 99.999% (five nines) transport service availability to the network elements. In addition, to the Sun T2000, the Interphase Signaling Gateway is integrated with other members of the Sun Netra[TM] and SunFire family of server products and will also be available integrated together with Sun Netra ATCA blade solutions.

"The Solaris 10 OS running on Netra T2000 telecommunications ready server platforms have emerged as a high performance alternative for customers to rapidly deliver scalable and reliable solutions into the communications infrastructure," said Prasad Kallur, vice president of Strategic Marketing at Interphase Corporation. "The iNAV 9400 signaling gateway solution on the Sun T2000 server platform delivers a robust, reliable and high throughput appliance solution that can easily integrate with next generation IP based platforms to provide legacy network interworking."

The Netra T2000 server, which incorporates the UltraSPARC T1 processor with up to 32 simultaneous executing threads, delivers breakthrough throughput with dramatic space, cooling and power efficiency using Sun's Chip Multithreading Technology (CMT) processor architecture. The Netra T2000 server has a rack-optimized two-RU enclosure integrated with industry leading Solaris 10 operating system and supports four Gigabit Ethernet ports to provide connectivity for high-speed, high bandwidth networking. System uptime is enhanced by redundant hot-swappable AC/DC power supplies and hot-pluggable disk drives. The Netra T2000 server's extreme compute density and ultra-low power consumption, along with its ruggedized features, make it ideal to meet the increasing demands of the network infrastructure.

Interphase will be showing a demonstration of the Netra T2000 based iNAV 9400 appliance at the 2007 3GSM World Congress in the Interphase booth (#1E67 - Hall 1) along with other Interphase AdvancedTCA, AdvancedMC, PCI/PCI-E and PMC products. The 2007 3GSM World Congress will be held in Barcelona, Spain, February 12-16, 2007.

About Interphase Corporation

Interphase Corporation (NASDAQ: INPH) is a leading provider of robust building blocks, highly integrated subsystems and innovative gateway appliances for the converged communications network. Building on a 30-year history of providing advanced I/O solutions for telecom and enterprise applications, and addressing the need for high speed connectivity, Interphase has established a key leadership role in delivering next generation AdvancedTCA([R]) (ATCA) and AdvancedMC[TM] (AMC) solutions to the marketplace. Headquartered in Plano, Texas, with sales offices across the globe, Interphase clients include Alcatel-Lucent, Ericsson, Fujitsu Ltd., Hewlett Packard, Motorola Inc., Nokia Networks, Nortel Networks Ltd. and Samsung. Interphase is a contributor member of the Scope Alliance and the Communications Platform Trade Association (CP-TA). Additional information about Interphase and its products is available on the company's Web site at www.interphase.com.

Interphase, iSPAN, iWARE, iNAV and the Interphase logo are registered trademarks of Interphase Corporation. All other trademarks are the property of their respective owners.

Sun, Sun Microsystems, Solaris, Netra and Sun Fire are trademarks of Sun Microsystems, Inc. in the United States and other countries. AMD and AMD Opteron are trademarks of Advanced Micro Devices, Inc. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC, International, Inc. in the US and other countries. Products bearing SPARC trademarks are based upon an architecture developed by Sun Microsystems, Inc.