AT&T is a worldwide provider of IP-base communication services to businesses. Based in Dallas, Texas with over 266,000 employees, AT&T is a Fortune 500 company and one of the 30 stocks that make up the Dow Jones Industrial Average.

AT&T IP Flexible Reach is a SIP trunking service that delivers integrated access for IP PBX, TDM PBX or Key System environments, providing potential total cost benefits through the consolidation of voice and data – one provider, single transport, and management options. Voice and data traffic riding over the same transport drives greater bandwidth utilization and potential access to cost savings. This managed Voice over IP communication solution includes calling plans that support inbound and outbound calling on your data network, giving you local, U.S. long distance and international reach for your U.S. sites.

Integration of AT&T Flex Reach SIP trunking service with Microsoft Lync is accomplished using AudioCodes Mediant 800, 1000 and 3000 Enterprise Session Border Controller (E-SBC) devices.

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