SUNNYVALE, CA, AUGUST 6, 2007 , , , , ZK Celltest announced that it has added the HSDPA, (High-Speed Downlink Packet Access) protocol for mobile telephone data transmission to its family of measurement and network optimization solutions. The 3.5G technology provides download speeds on a mobile phone equivalent to an ADSL (Asymmetric Digital Subscriber Line) line in a home, removing any limitations placed on the use due to slow connection. Although any data can be transmitted, applications with high data demands such as video and streaming music are the focus of HSDPA.

"ZK Celltest is very pleased to be able to offer this important enhancement to our drive and indoor field test equipment. Our partnership with Qualcomm has enabled us to support their popular 3G chip set family including the QTP - 6800™, TM7200™ and TM6280™ bringing HSDPA field testing to standard phones including LG, Samsung, and Motorola, and to USB modems supported by Sierra Wireless and Novatel Wireless", commented Rich Miletic, CEO of ZK Celltest, Inc.

The ZK Celltest family of products utilizes unique dedicated and ruggadized technology that does not require a laptop to log the captured drive test data. Eliminating the need for a laptop makes ZK's solutions ideal for testing in vehicles, where drivers must keep their attention on the road rather than on a laptop screen, and for in building use where a laptop is too bulky to carry during walking tests.

About ZK Celltest
ZK Celltest has been providing field measurement and network optimization solutions to the wireless industry since 1985. Its culture is built around providing the solutions customers need in an intuitive and reliable fashion. The company founders, while working for AT&T Bell Labs, participated in the design of AMPS technology and the testing and optimization of the first cellular system in Chicago in 1983. ZK focuses on providing dedicated, ruggadized, compact products that are easy to operate and provide inherent safety, reliability and productivity advantages over PC-based products. The company is located at 256 Gibraltar Drive, Suite 109, Sunnyvale, CA 94089. For further information go to www.zk.com.

Contact:
Rich Miletic
ZK Celltest Inc.
408-752-0449, ext. 620
rich@zk.com