Texas Instruments DSP Powers Grandstream Networks' GXP-2000 Enterprise IP Phone

Texas Instruments DSP Powers Grandstream Networks' GXP-2000 Enterprise IP Phone

June 09, 2006

Extended Functionality of TMS320C5501 DSP Gives SIP Phone Superior Voice Clarity, Enhanced Security Protection

    HOUSTON, June 9 /Xinhua-PRNewswire/ -- Continuing to
accelerate the IP multimedia device market, Texas
Instruments Incorporated (TI) [NYSE:TXN], announced today
that its high performance, low power TMS320C5501 digital
signal processor (DSP) was selected by Grandstream Networks
for the GXP-2000, a next generation enterprise SIP phone. 

    Grandstream chose TI's TMS320C5501 DSP because of its
high performance for advanced digital signal processing and
affordable cost.  The C5501 DSP allows Grandstream to offer
superb voice clarity, enhanced security protection for
device provisioning and private communications, and all the
popular PBX phone features on its GXP2000 enterprise IP
phone product, including transfer, forward, do not disturb,
hold, mute, 3-way conference, intercom/paging, shared line
presence, call park/pick up, speed dial, full duplex
hands-free speakerphone, etc, at a much lower price level
than competition. Optimized for communication devices,
music effectors and portable medical devices, the
TMS320C5501 fixed-point DSP is based on the TMS320C55x(TM)
DSP generation CPU processor core. The C55x(TM) DSP
architecture achieves high performance and low power
through increased parallelism and total focus on reduction
in power dissipation. 

    "We are very excited about working with TI and
using their industry leading DSP that powers our innovative
VoIP products. By leveraging the powerful processing
capabilities, extended features and relatively low cost of
TI's DSP, Grandstream is able to design and deliver
advanced IP voice and video products with high quality,
rich functions at unrivaled price points," says David
Li, CEO of Grandstream Networks, Inc. 

    Grandstream's GXP-2000

    Grandstream's GXP-2000 is a next generation enterprise
SIP phone that offers great features at a great price.
GXP-2000 features dual 10/100M Ethernet ports that can be
configured in switch or router mode, headset jack,
adjustable large 130x64 graphic LCD (with support for
multiple languages), four line indicators (each of which
can be configured using independent SIP account), seven
programmable speed dial keys with further expandability to
support up to 112 additional programmable keys via add-on
key expansion modules, various popular voice codecs
including G.711, G.723.1, G.729A/B, GSM, G.726, and G.722
(wideband), multi-party conferencing, intercom, call
forward, call transfer, BLF (Busy Lamp Field), shared line
appearance and call pickup, full duplex speaker phone with
acoustic echo cancellation, AES based SRTP and ZRTP for
secure voice communications, XML, SIMPLE, and LDAP to allow
easy integration with other applications. GXP-2000 comes
with built-in Power-over-Ethernet (802.3af) and a universal
power supply. With MSRP of only $119, GXP-2000 presents a
tremendous value to corporate users.

    About TMS320C5501 DSP

    The C55x DSP CPU provides two multiply-accumulate (MAC)
units, each capable of 17-bit ¡Á 17-bit multiplication in a
single cycle. A central 40-bit arithmetic/logic unit (ALU)
is supported by an additional 16-bit ALU. Use of the ALUs
is under instruction set control, providing the ability to
optimize parallel activity and power consumption. These
resources are managed in the Address Unit (AU) and Data
Unit (DU) of the C55x CPU.The C55x DSP generation supports
a variable byte width instruction set for improved code
density. The Instruction Unit (IU) performs 32-bit program
fetches from internal or external memory and queues
instructions for the Program Unit (PU). The Program Unit
decodes the instructions, directs tasks to AU and DU
resources, and manages the fully protected pipeline.
Predictive branching capability avoids pipeline flushes on
execution of conditional instructions. 

    The C5501 DSP peripheral set includes a UART, watchdog
timer, and an I-Cache. Two full-duplex multichannel
buffered serial ports (McBSPs) provide glueless interface
to a variety of industry-standard serial devices, and
multichannel communication with up to 128 separately
enabled channels. The host-port interface (HPI) is an 8-bit
parallel interface used to provide host processor access to
16K words of internal memory on the C5501 DSP. The HPI
operates in multiplexed mode to provide glueless interface
to a wide variety of host processors. The DMA controller
provides data movement for six independent channel contexts
without CPU intervention. Two general-purpose timers, eight
dedicated general-purpose I/O (GPIO) pins, and analog
phase-locked loop (APLL) clock generation are also
included. 

    Additionally, Grandstream leverages TI DSP for its
H.264 IP video phone, the GXV-3000, a next generation
advanced IP video phone based on SIP standard. GXV-3000
features the latest H.264 real-time video codec with
blazing performance, an advanced high resolution camera
sensor, and a razor thin 5.6-inch TFT color LCD with
stunning picture quality.  GXV-3000 is optimized for
evolving video and imaging standards by Texas Instruments'
TMS320DM643 digital media processor that delivers more
performance, spurs faster frame rates and higher
resolutions and supplies real-time streaming video with
advanced audio and video quality.

    DSP Support

    The C5501 DSP is supported by the industry's
award-winning eXpressDSP(TM) software and development
tools, Code Composer Studio(TM) Integrated Development
Environment (IDE), DSP/BIOS(TM), kernel, Texas Instruments'
algorithm standard, and the industry's largest third-party
network. The Code Composer Studio IDE features code
generation tools that include a C Compiler, Visual Linker,
simulator, RTDX(TM) technology, XDS510(TM) emulation device
drivers, and evaluation modules. The C5501 DSP is also
supported by the C55x DSP Library, which features more than
50 foundational software kernels (FIR filters, IIR filters,
FFTs, and various math functions) as well as chip and board
support libraries. 

    About TI

    Texas Instruments Incorporated provides innovative DSP
and analog technologies to meet our customers' real-world
signal processing requirements.  In addition to
Semiconductors, the company's businesses include Sensors
& Controls, and Educational & Productivity
Solutions.  TI is headquartered in Dallas, Texas, and has
manufacturing, design or sales operations in more than 25
countries.

    Texas Instruments is traded on the New York Stock
Exchange under the symbol TXN.  More information is located
on the World Wide Web at http://www.ti.com.

    About Grandstream

    Grandstream Networks is a leading designer and
manufacturer of innovative and highly affordable IP
multimedia (voice/video-over-IP) devices for broadband
networks. Built upon unique and proprietary technology,
Grandstream's products deliver market leading superb voice
and video quality, rich functionalities, high level
compliance with industry standards, and most importantly,
ultra-affordability and extraordinary values to consumer
and corporate users. Grandstream Networks is a private
company located in Massachusetts with offices in Los
Angeles, Dallas and Shenzhen, China. 

    Trademarks

    TMS320C55x ,  C55x, eXpressDSP, Code Composer Studio,
DSP/BIOS, RTDX and XDS510 are trademarks of Texas
Instruments. All trademarks and registered trademarks are
the property of their respective owners.

    For more information, please contact:

     Sarah Gonzales
     Texas Instruments 	
     Tel:   [phone]
     Email: [e-mail]

     Tim Frost
     GolinHarris
     Tel:   [phone]
     Email: [e-mail]

SOURCE  Texas Instruments Incorporated