Philadelphia, PA – November 28, 2006 – CellSigns, Inc., the premier provider of interactive
mobile messaging and enterprise mobile applications, today announced an agreement with Cox
Newspapers, Inc, one of the nation’s foremost newspaper publishing enterprises with 17 daily
and 25 non-daily papers, including news sites affiliated with The Atlanta Journal-Constitution
(ajc.com); Austin American-Statesman (Statesman.com); Dayton Daily News
(daytondailynews.com); and The Palm Beach Post (PalmBeachPost.com). The agreement
provides Cox Newspapers with custom interactive mobile application services for its
newspapers’ classified sites.

This new mobile service launched in November on PalmBeachPost.com. Users are able to
request information on classified ads such as homes, autos and other advertising content simply
by texting specific codes or using a natural language search to access the information on their
mobile device. They will then receive a message via SMS with the classified ad information
including pictures when available or contact the seller directly with a click to call.
“Mobile devices are the perfect way to quickly connect buyers and sellers,” said Robb R Olsen,
Vice President of Advertising, The Palm Beach Post. “And, you don’t have to be in front of your
computer or reading the newspaper to find what you need.”

CellSigns patent-pending interactive mobile applications suite is built on powerful 2-way SMS
and includes mobile search via text messaging, click-to-text, mobile chat and other applications.
The company recently won the “Most Innovative Technology” Award from Inman News for
their mobile search and property marketing system.

“CellSigns is very pleased to have been chosen by Cox Newspapers to provide a very powerful
mobile tool for consumers on the go” said Mark Ford, CEO of CellSigns. “Our mobile search
application, Cellifieds, allows newspapers to reach their local market through the mobile channel
with interactive text messaging features for classified ads and extends the newspapers reach into
a new channel. It also extends the message of the advertiser into mobile ads.”
“More local residents have mobile devices than have Internet connections,” said
PalmBeachPost.com General Manager Dan E. Shorter. “With our mobile and Internet services,
kiosks and the newspaper we now offer the largest possible reach for any advertiser in our area.”

ABOUT COX NEWSPAPERS

As one of the nation’s largest newspaper publishing enterprises, Cox Newspapers now produces
17 daily and 25 non-dailies. The company also operates direct mail businesses, distributes
classified advertising publications, customized newsletters and owns one-third of a newsprint
manufacturing business. Total circulation for the company’s newspapers reaches 1.2 million
each weekday and more than 1.6 million on Sundays. For more information about Cox
Newspapers, Inc, please visit www.coxnews.com.