Castelle Releases Market's First Network Fax Server Appliance With Full Hardware Redundancy; Company Moves Further Into Enterprise Market With New FaxPress Enterprise(TM) Redundant Fax Server.

MORGAN HILL, Calif. -- Castelle(R) (Nasdaq:CSTL), a leader in "all-in-one" network fax solutions for the business and enterprise markets, today announced the release of its new FaxPress Enterprise(TM) Redundant Fax Server, the first true network server appliance with full hardware redundancy for fax applications.

FaxPress Enterprise Redundant is the newest addition to Castelle's FaxPress Enterprise family of digital fax servers, providing an all-in-one redundant fax solution for T1, E1 or ISDN environments. Duplicated and backup hardware components provide increased reliability for business-critical faxing. In the event of a hardware failure, the backup components will automatically take over allowing the fax server to continue to operate. The server-class hardware closely monitors the system and simultaneously sends notification to the administrator reporting the failed component. FaxPress Enterprise Redundant features include:

--Dual hot swappable hard disk drives

--RAID technology for disk mirroring

--Dual hot swappable power supplies

--Dual hot swappable cooling fans

--Dual Gigabit Ethernet connectivity with client cross over support

--Industrial grade hardware

--Support for Digital T1, E1 and ISDN Environments in single or dual configurations for auto failover

"We are very excited to announce our new FaxPress Enterprise Redundant fax server," said Scott McDonald, President and CEO of Castelle. "Castelle is the first in the fax server market to release an all-in-one redundant server appliance for faxing. We built on the existing features of FaxPress Enterprise, maintaining the ease-of-use customers have come to expect from our fax servers, while adding industrial grade hardware required in a high performance redundant system. For an organization that has already invested in developing a highly available network environment, it makes sense to invest in a redundant fax server that can plug right into the existing infrastructure."

The redundant components of FaxPress Enterprise Redundant address and eliminate common points of potential failure. The FaxPress Enterprise Redundant server hardware is built around an Intel-based mother board with 1GB of memory, 2MB cache, and dual 100/1GB NIC connections. It includes a RAID 1 controller, two serial 80GB disk drives, two removable power supplies and fans. The FaxPress Enterprise can be configured for single or multiple digital connections to allow for automatic failover if the connection to the service provider is lost. FaxPress Enterprise runs on Castelle's FaxPress Plus(TM) software for sending and receiving faxes using the Castelle client, email, production applications, or via the internet.

FaxPress Enterprise Redundant T1, E1 and ISDN

The FaxPress Enterprise Redundant T1 can be installed with a fractional T1 board to provide 8 channels across a fractional T1 line, dual fractional T1 boards, or one to three T1 fax boards to support from 24 to 72 channels across a T1 line(s). For international markets, FaxPress Enterprise Redundant is available in an E1 configuration with support for fractional E1, dual fractional E1, or full E1 up to 90 channels, and ISDN configurations from 2 to 24 channels per server. Upgrade kits allow customers to tailor the FaxPress Enterprise Redundant to their needs as the organization grows.

Castelle's family of network fax servers give users a versatile fax management solution that runs in Microsoft Windows, Novell NetWare, Macintosh and Linux environments and integrates with many popular email systems, corporate contact databases, multifunction printers and PBX's. The Company has a broad range of fax solutions, ranging from a one line, entry level fax server to a clustered redundant server appliance.

FaxPress Enterprise Redundant Availability

FaxPress Enterprise Redundant fax servers are available for shipment in North America, the United Kingdom and Europe through a network of resellers. For information on sales and fax server trade-ins please contact Castelle Sales at [phone] or [phone] or email [e-mail].

About Castelle

Castelle (Nasdaq:CSTL), a market leader in "all-in-one" network fax solutions for business and enterprise, develops office automation systems that allow organizations to easily implement faxing over local area networks and the Internet. Castelle's network fax servers, FaxPress(TM), FaxPress Premier(TM), and FaxPress Enterprise(TM) provide a simple way to integrate fax with email, desktop and back-end applications. Castelle products are designed to be easy to use and maintain, and provide an economical way for companies to share resources over the network. Castelle was founded in 1987 and is headquartered in Morgan Hill, California. Its products are available through a worldwide network of distributors, resellers, and online retailers. Visit Castelle online at www.castelle.com.

FaxPress(TM), FaxPress Premier(TM), FaxPress Enterprise(TM) and FaxPress Plus(TM) are trademarks of Castelle. All other trademarks are the property of their respective owners.

If you would like to be added to Castelle's investor email list, please contact Karin Reak at [e-mail].

Forward-Looking Statements 

This press release may contain forward-looking statements. These statements are subject to risks and uncertainties. Investors are referred to the full discussion of risks and uncertainties associated with forward-looking statements as contained in our reports to the Securities and Exchange Commission, including our Forms 10-Q and 10-K. The Company assumes no obligation to update the forward-looking information.