Press Release

FOR IMMEDIATE RELEASE

RMI Corporation and Effnet Announce Collaboration

Cupertino, CA, February 6, 2008 —Effnet AB, the leading provider of header compression
solutions, and RMI Corporation (RMI), a leading supplier of processor based solutions for
networking, communications and consumer applications, today announced that they have
collaborated to bring out a joint solution of Effnet ROHCTM on RMI’s XLR and XLS Processors.
Effnet has ported its Effnet ROHCTM software solution to RMI’s XLR and XLS Processors and
optimized the performance on this multi-core, multi-threaded architecture. Exceptional
performance is achieved via the use of RMI’s XLR and XLS hardware threading, which acts as
individual accelerators or virtual CPUs. OEMs who design the XLR and XLS processors into
various telecom system solutions can thereby offer customers a compelling solution by licensing
Header Compression software from Effnet.

Effnet ROHCTM is the leading software solution for header compression based on the IETF
standard RFC3095 and supports multiple other standards from 3GPP, 3GPP2, WiMAX etc. Effnet
ROHCTM is aimed at helping customers to improve capacity and reduce costs of their networks.
Effnet ROHCTM is a highly portable solution with a well-defined programming interface which
facilitates easy and speedy integration for customers. The intelligent pattern detection algorithms
provide maximum compression efficiency coupled with high robustness. Effnet ROHCTM is an
ideal solution for wireless networks including satellite networks having links with high delay.
RMI’s XLR and XLS Processors provide industry-standard interfaces and an extensive set of
connectivity options. The XLR and XLS Processors combine the power of innovative
multiprocessing, multi-threaded architecture with the simplicity of an enhanced leading edge,
general purpose MIPS64™ machine enabling wire speed, software-driven applications across
multiple platforms. RMI’s XLR and XLS Processor families are cost effective, single-chip solutions
providing a key building block for applications such as telecommunications, integrated network
security, web services, virtualized storage, server offload and intelligent routing and switching
systems.

"By teaming with Effnet, we will be able to offer our customers a leading header compression
solution for 3rd generation wireless networks including WiMAX and 3GPP LTE. The XLR and
XLS processors provide multi-core and multi-threaded platforms with many hardware acceleration
features to maximize the performance of Effnet ROHCTM. It was a quick and easy process to port
Effnet ROHCTM to our XLR and XLS platforms with excellent support services provided by Effnet,”
says Mark Litvack, Director Business Development, RMI.

"We are impressed with the RMI XLR and XLS Processor lines, particularly the ease of scaling
the design for the multi-core and multi-threaded platform. The optimized performance of the joint
solution will meet the requirements of next generation wireless networks. RMI's high performance
and power efficient solutions are great compliments to Effnet's highly efficient, robust and value
adding solution,” says Joakim Enerstam, Deputy Managing Director, Effnet AB.

About Effnet AB and Effnet Holding AB (publ)
Effnet AB, a wholly owned subsidiary of Effnet Holding AB (publ), is a world leader in the area of
IP Header Compression. Effnet develops and sells embedded software that increases the
efficiency, speed and quality of IP traffic in fixed, mobile and satellite networks. For more
information about Effnet and more information about IP Header Compression please visit
www.effnet.com. Effnet Holding AB (publ) is traded on the First North list of the Stockholm Stock
Exchange, under the ticker EFFN and its certified adviser is Remium www.remium.com. For
further information about Effnet Holding AB (publ) please http://www.effnetholding.se

About RMI Corporation
RMI Corporation is a fabless semiconductor company providing highly integrated, featurerich
products ranging from power-optimized System-on-a-Chip (SoC) solutions to High-
Performance Processors for the Digital Consumer, Wireless, Networking and Security
markets. RMI offers the most advanced and the most complete MIPS-Based® processing
solutions with both 32/64-bit architectures supporting frequencies from 300MHz to 1.2 GHz.
RMI is headquartered in Cupertino, CA with branch and subsidiary operations in Texas,
United Kingdom, India, Korea, Japan, Taiwan and China. More information about RMI can
be found on the company’s website www.RMICorp.com.
                                                       

© Copyright 2007 RMI Corporation. All rights reserved. RMI Corporation, the RMI logo, XLR,
XLS, XLR Processor, XLS Processor and the other trademarks named on the RMI website
are trademarks of RMI Corporation. All other trademarks are the property of their respective
owners.