December 15th, 2011

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Clearwire Selects Alianza to Manage Voice-Over 4G Products and Services

Customers

BELLEVUE, Wash. and LINDON, Utah, December 15, 2011Clearwire Corporation (NASDAQ:CLWR), a leading provider of 4G wireless broadband services, and Alianza, a leading provider of cloud-based VoIP solutions, today announced a four-year, hosted software licensing agreement wherein Alianza will be responsible for managing Clearwire’s voice products and services.

Under the new agreement, Alianza will oversee day-to-day voice operations for Clearwire and supply all end-to-end software components of the hosted voice platform, including softswitch, application feature server, call rating, CPE provisioning, monitoring, security, and end-user self-support tools. “Alianza’s proven expertise and track record in successfully deploying voice-over 4G wireless networks makes this relationship a natural fit for Clearwire,” said Dow Draper, Clearwire Senior Vice President and General Manager of Retail. “Alianza’s one-stop shopping approach to VoIP service delivery is an ideal solution to Clearwire’s need for a turn-key, highly scalable, customizable voice platform that provides us with the opportunity to consider new consumer offerings previously unavailable to CLEAR.”

Alianza’s end-to-end voice platform combines all the back-office platform management, product management, and end-user support functions into a single web-based administrative user interface. In addition, numerous administrative functions that traditionally require manual processes are automated through Alianza’s robust API and are designed to reduce Clearwire’s overall cost of management related to voice services.

“We are excited to be a part of Clearwire’s strategy for delivering VoIP services bundled with 4G wireless broadband to customers across the United States,” said Brian Beutler, Chief Executive Officer, Alianza. “This is a key agreement for Alianza, and we are looking forward to providing Clearwire with the highest quality and most reliable voice services available.”

“This hosted software agreement is a great move for both Clearwire and Alianza, one that will have near term and long-term benefits for both companies,” observed Diane Myers, Directing Analyst at Infonetics Research. “In addition to providing improvements in system management, upfront costs, and overall VoIP profitability, Alianza’s cloud-based VoIP delivery platform gives operators the strategic benefit of leveraging best practices from operators across Alianza’s customer network in order to accelerate voice services deployments.”

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