AT&T Enhances Interoperability for Public Sector and Public-Safety Networks
Tuesday, August 16, 2016 | Comments

First responders, transportation agencies and public departments depend on interoperable LMR solutions to connect and communicate.

AT&T now supports Inter RF Subsystem Interface (ISSI), an IP-based, open-standard connection – Association of Public Safety Communications Officials (APCO) Project 25 (P25), company officials said. APCO P25 is the standard for connectivity among public sector and public safety networks. Following closely on the heels of support for Console Subsystem Interface (CSSI), the CSSI interface lets customers connect dispatch console systems.

Customers can connect their LMR networks to AT&T Enhanced push-to-talk (EPTT) to extend coverage and communications nationwide. AT&T EPTT also meets the requirements of the Federal Information Processing Standard (FIPS) Publication 140-2. FIPS is a U.S. government computer security standard used to test and validate product security.

The end-to-end solution also integrates AT&T Dynamic Traffic Management to provide priority call treatment and network access based on quality of service (QoS) network technology. 

"With ISSI, the geographic and technological restrictions of LMR are a thing of the past," said Walt Rivenbark, associate vice president of Advanced Mobile Solutions, AT&T. "We're the first major U.S. wireless carrier to offer ISSI and CSSI connectivity to more than 2,500 public safety networks.

"We expect this solution to change how public entities think about their radio services. They can now communicate virtually whenever, wherever they need to. And the solution complements their existing systems with EPTT cost-effective and user-friendly functionality," Rivenbark said.

AT&T is piloting ISSI with several customers, including the city of Richardson in Texas. The city is deploying LMR interoperable EPTT devices to its mission support teams. 

"AT&T's unique offering is simple, scalable and reliable," said Steve Graves, chief information officer (CIO), City of Richardson, Texas. "It's the next evolution of LMR. It's a cost effective solution that's removing the most expensive part of the radio system, the radio itself! ISSI is empowering us to communicate on an open standard interface and making it easier to integrate AT&T EPTT."

Customers can also use radio over IP (RoIP) to achieve interoperability, which is also built into the company’s EPTT network to further support IP interoperability.

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