InterNetwork Experts Launches IP HAWWC Mobile Converged Network Platform.

Business Editors/High-Tech Writers

Investment in Homeland Security and Defense

DALLAS--(BUSINESS WIRE)--March 23, 2004

InterNetwork Experts Inc., a wholly owned subsidiary of I-Sector Corporation (AMEX:ISR), announced today the launch of its Internet Protocol Hardened Wired/Wireless Communication platform (IP HAWWC(TM)).

David Peoples, vice president federal business for InterNetwork Experts commented, "Our Group is seeing increasing demand for a wide variety of converged network solutions. The IP HAWWC(TM) platform is designed to provide rapid deployment of IP voice, data and video surveillance communications for military personnel in harsh field environments. Response to the IP HAWWC has already been very positive."

The unit is designed for rugged deployment, encased in a mil-spec hardened ballistic case and shock mounted for transportation. The IP HAWWC can be dropped into forward locations, and, within a few minutes, provide a full communications command center, with all systems powered up, and IP voice handsets, data devices and video surveillance equipment operational.

The IP HAWWC is designed for HUMMVVI or military track vehicle transport and is powered directly from the vehicle using the included slave cable. Mil-spec connections and cables for both 110 and 220 are also included and user selectable.

The IP HAWWC contains a high-performance Cisco router in a compact form factor ideally suited for integration in vehicles. It offers secure data, voice and video communications, seamless mobility and interoperability across both wired and wireless networks. The router extends the edge of the IP network to a new frontier of Networks-in-Motion, and facilitates new applications in the defense and homeland security markets.

The embedded router offers the following benefits:

-- Secure data, voice and video communications with seamless

mobility across wireless networks, independent of location or

movement

-- High performance in a compact, rugged design for use in

vehicles

-- Advanced IP services and interoperability through Cisco IOS

Software

The IP HAWWC also includes a Cisco inline power 24-port 10/100 switch with 2 Gigabit Interface Ethernet ports, supporting voice, video surveillance and data applications. With integrated inline power, the IP HAWWC can power Cisco IP phones and the video surveillance cameras directly from external mil-spec connections. Whether wired or wireless -- powered or non-powered -- the IP HAWWC provides the necessary connectivity option.

The IP HAWWC utilizes an integrated Cisco PIX firewall for multilayer security defense, including stateful inspection fire walling, protocol and application inspection, virtual private networking (VPN), in-line intrusion protection, and rich multimedia and voice security. The state-of-the-art Cisco Adaptive Security Algorithm (ASA) provides rich stateful inspection firewall services, tracking the state of all authorized network communications, and preventing unauthorized network access. Custom security policies can also be created for firewall traffic and predefined application security.

IP HAWWC VOIP Capabilities

InterNetwork Experts worked closely with Cisco engineers to finalize the importation of the Cisco IP telephony call-processing software onto the router. Cisco CallManager is the software-based call-processing component of the Cisco IP telephony solution and extends telephony features and capabilities to packet telephony network devices such as IP phones. The IP HAWWC is delivered to the customer with a set of Cisco wireless IP 7920 phone handsets, wired 79XX handsets, or combination of both wired and wireless IP phone devices.

IP HAWWC Wireless Networking

The IP HAWWC provides wireless device access. An internal Cisco Aironet 1200 provides system compliance with IEEE 802.11a, 802.11b, and 802.11g standards. Support is provided for single or dual radio configurations for up to 54 Mbps connectivity in both the 2.4 and 5 GHz bands.

IP HAWWC boxes can be interconnected via encrypted wireless links. Utilizing the Cisco Aironet wireless bridge, high-speed long-range outdoor links between IP HAWWC units is created. Designed to connect two or more networks, the wireless bridge delivers high data rate throughput and can be configured for point-to-point or point-to-multipoint applications. Wireless bridges connect discrete sites, even when separated by obstacles such as freeways, railroads and bodies of water. The IP HAWWC has available a broad array of directional and omni-directional antennas that provide a complete solution for a wide variety of fixed wireless applications. These configurations allow a cluster of IP HAWWC units to share a single, high-speed connection.

Wireless LAN security is a primary concern, and the IP HAWWC uses the Cisco Wireless Security Suite. Based on the IEEE 802.1X standard for port-based network access, the Cisco Wireless Security Suite takes advantage of the Extensible Authentication Protocol (EAP) framework for user-based authentication. This solution also supports Wi-Fi Protected Access (WPA), the new Wi-Fi Alliance specification for interoperable, standards-based wireless security.

IP HAWWC Video Surveillance

The IP HAWWC can provide IP video surveillance technology as an optional component. The unit can provide a comprehensive multimedia surveillance and monitoring system which is adapted for transmitting MPEG video streams, high resolution JPEG images, audio signals, detected event data and other sensor and detector data using digital data transmission over both wired and wireless networks (LANs, WANs). Additional functions of facility access control, facility environmental monitoring and biographic database connectivity can be provided within one integrated system.

This situational awareness system is based on standard networking and Internet technology. Both real-time and archived data may be viewed from a guard station or any authorized PC on the LAN, WLAN or the Internet. The archive application tracks and maintains all situational awareness information and provides high-speed random access for fast location of specific data relating to events.

Automated notification of alarm conditions and other events is provided to response personnel, and can be provided using dial-up circuits to telephones, cellular phones and pagers; via e-mail; or via the Internet.

IP HAWWC Encryption

InterNetwork Experts can add Western DataCom encryption devices into the IP HAWWC box for secure mobile communications.

Western DataCom introduces the IPE-2M PC/104 Plus High Assurance IP Encryptor. The first of its kind, IPE-2M is a hardware-based encryptor designed to secure all private/public IP internetworking environments (mobile, wireless, space and stationary).

The premise behind the IPE-2M is Mobile Virtual Private Network using IPSec and with a migration path to HAIPIS (High Assurance Internet Protocol Interpretability Specification), the National Security Agency's specification for IPSec. All IP traffic traversing the trusted network is authenticated, monitored and encrypted by the IPE-2M. Security at the IP layer has a decisive advantage that, irrespective of the interpretability conditions of various software and hardware applications, all communications services are protected -- data, voice and video.

Additional Product Information

Additional detailed IP HAWWC product information and specifications are available on InterNetwork Experts' Web site at http://www.inetx.com/docs/HAWWC box.doc

About InterNetwork Experts:

InterNetwork Experts is a purpose-built end-to-end solutions provider focused on IP Communications. The company has a federal business unit based in Washington, DC, that provides products and services to a wide variety of Federal clients, such as the Department of Homeland Security, US Army, US Airforce, National Guard, Army Corps of Engineers, Department of Justice, Federal Reserve Bank and HUD. The company will be presenting at the Investment in Homeland Security and Defense Conference in Washington on March 30, 2004. More information can be found at www.inetx.com.

About I-Sector Corporation:

I-Sector Corporation, headquartered in Houston, Texas (AMEX:ISR), owns and operates companies that are engaged in the area of information and communications technology, with a particular focus on Cisco-centric network infrastructure and IP telephony solutions. Additional information about I-Sector is available on the Internet at www.I-Sector.com.

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by enterprises for communications products and services

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its targeted customers

-- Risks associated with entry into new markets

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market its products to the defense sector

-- Market acceptance of Cisco IP telephony products and

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