INTEROP TECHNOLOGIES PROVIDES ADVANCED WIRELESS
SOLUTIONS SUPPORTING ALASKA COMMUNICATIONS SYSTEMS
DEPLOYMENT

Interop Delivers Robust, Hosted Solutions to Support SMS, MMS, and WAP Services
For ACS Wireless Customers Statewide

FORT MYERS, FL—Jan. 16, 2008—Interop Technologies, a leading provider of advanced wireless technology solutions, and today announced that it is providing Alaska Communications Systems Group, Inc. (NASDAQ: ALSK) with leading-edge short message (SMS), multimedia message (MMS), and Wireless Application Protocol (WAP) solutions, enabling the operator to offer state-of-the-art services to its customers.

ACS is using hosted Interop Technologies solutions to provide text and multimedia messaging and mobile Internet services to its base of 143,000 customers. ACS, the leading integrated communications provider in Alaska, operates the only third-generation (3G) wireless network in the state, providing wireless voice and high-speed data coverage.

Infinitely scalable, highly reliable solutions from Interop Technologies deliver all features that end users expect and provide operators with valuable management tools, as well as the ability to support significant customer growth. ACS is offering services using the following Interop Technologies hosted solutions:

• Short Message Service Center 4.0—Supports text messaging, mobile email, and Web-based messaging
• Multimedia Message Service Center 4.0—Enables customers to send and receive digital photos, audio, video, and voice messages on MMS-capable handsets
• WAP Gateway 2.0—Helps customers access news, sports, weather, entertainment, and business content on the Internet

With the hosted business model, ACS benefits from a capital-efficient, service bureau environment.

"We are pleased that ACS has selected our company as its exclusive wireless solutions provider," said John Dwyer, Co-Founder, President and CEO, Interop Technologies. "We are fully committed to helping ACS deliver the latest wireless services to businesses and consumers across Alaska."

About Interop Technologies
Interop Technologies (www.interoptechnologies.com) is a leading provider of advanced wireless technology solutions for the global wireless, packaged goods, and content industries. The company delivers hosted and turnkey messaging, device management, and personalization solutions. These technologies help increase revenue and brand loyalty for major companies and meet consumer demand for innovative services. A proven partner with in-depth wireless expertise, Interop Technologies currently has nearly 150 deployments with more than 40 wireless operators and major brands across North America, Latin America, and the Caribbean. Founded in 2002, Interop is headquartered in Fort Myers, FL.

About Alaska Communications
ACS is the leading integrated communications provider in Alaska, offering local telephone service, wireless, long distance, data, and Internet services to business and residential customers throughout the state. More information can be found on the company's website at www.acsalaska.com or at its investor site at www.alsk.com.

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