Dallas & Melbourne, Fla., October 24, 2011 — AT&T* and Harris Corporation (NYSE:HRS) are forming an alliance to develop and deliver next generation LTE wireless solutions for agencies and first responders whose lifesaving efforts depend on timely access to critical information.

Together, AT&T and Harris are exploring opportunities to provide first responders with broadband and mission critical communications systems that will enable high-speed video and data solutions. Users would benefit from network agility that delivers highly-secure, highly-reliable connectivity where and when they need it.

AT&T and Harris would bring extensive experience supporting public safety and government customers, as well as expertise in broadband and mission critical network construction and integration, interoperable device manufacturing, and network service management. As a result of this alliance, public safety agencies would benefit from:

• A unified experience driven by integration of  broadband and narrowband Land Mobile Radio (LMR) networks
• Multiple business models to fit agencies’ needs and resources – from complete end-to-end network solutions to a subscriber-based model
• Seamless roaming and nationwide interoperability using AT&T’s 4G network when outside the  public safety LTE network coverage area
• A broader portfolio of wireless devices and applications designed for both commercial and public safety broadband networks

“This alliance is a first step toward making next-generation technology and services available to agencies who seek competitive options,” said Chris Hill, AT&T Vice President of Advanced Business Solutions. “It’s the beginning of a public safety ecosystem of open devices and applications interoperable with private broadband networks, as they become available.”

“Harris has extensive experience in mission-critical communications, and a legacy of bringing new technology, such as LTE to public safety and government customers,” said Steve Marschilok, President of Harris Public Safety and Professional Communications. “This alliance will look to expand the choices for a growing set of solutions that can be deployed to create an advanced, mission-critical broadband experience for public safety.”

Today’s announcement is evidence of AT&T and Harris Corp.’s  longstanding support to create a national interoperable public safety network that would allow public safety agencies more cohesive voice and data communications both during emergencies and day-to-day operations.

4G LTE technology provides several benefits, including faster speeds and lower latency for delivering mission critical information. With future public safety LTE solutions, emergency dispatches could include a live video feed from traffic cameras to help first responders assess the situation en route and could enable mounted police officers to quickly retrieve a suspect’s information from a national database, using a tablet. The combined offerings of Harris and AT&T could further extend interoperability across existing narrowband public safety LMR networks to private public safety and public broadband networks.

As public safety agencies continue to adapt to communities that increasingly are going mobile, and confront challenges where actionable communications can improve situational awareness, the companies plan to work together to explore opportunities to deliver a set of solutions that include:

• Handheld, vehicle-mounted and peripheral LTE-compatible devices
• Mission-critical broadband applications
• Seamless access to both private and public networks for public safety agencies
• Network management, applications and support systems
• Integrated Broadband/Project 25 infrastructure and devices

*AT&T products and services are provided or offered by subsidiaries and affiliates of AT&T Inc. under the AT&T brand and not by AT&T Inc.

About Harris Corporation

Harris is an international communications and information technology company serving government and commercial markets in more than 150 countries. Headquartered in Melbourne, Florida, the company has approximately $6 billion of annual revenue and more than 16,000 employees — including nearly 7,000 engineers and scientists. Harris is dedicated to developing best-in-class assured communications^® products, systems, and services. Additional information about Harris Corporation is available at www.harris.com.

About AT&T

AT&T Inc. (NYSE:T) is a premier communications holding company and one of the most honored companies in the world. Its subsidiaries and affiliates – AT&T operating companies – are the providers of AT&T services in the United States and around the world. With a powerful array of network resources that includes the nation’s fastest mobile broadband network, AT&T is a leading provider of wireless, Wi-Fi, high speed Internet, voice and cloud-based services. A leader in mobile broadband and emerging 4G capabilities, AT&T also offers the best wireless coverage worldwide of any U.S. carrier, offering the most wireless phones that work in the most countries.  It also offers advanced TV services under the AT&T U-verse^® and AT&T │DIRECTV brands. The company’s suite of IP-based business communications services is one of the most advanced in the world. In domestic markets, AT&T Advertising Solutions and AT&T Interactive are known for their leadership in local search and advertising.

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