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ESChat is most commonly operated as an over-the-top (OTT) push to talk (PTT) service, offering seamless carrier-to-carrier PTT communications, a feature not available in traditional carrier-integrated PTT solutions. OTT service uses the wireless carrier network’s best effort algorithm, sufficient for most use cases. However, during times of significant network congestion accessing the wireless carrier using best effort can result in limited access and poor call quality.
ESChat integrated its Amazon AWS-based servers with the Verizon Wireless network via private multiprotocol label switching (MPLS) circuits. ESChat encrypted voice and signaling traffic uses prioritized packet markings that are recognized by the Verizon network, which then provide a differentiated QoS level rather than the best effort algorithm.
ESChat’s AWS integration to Verizon Wireless allows customers to take advantage of enhanced QoS without having to install their own private MPLS circuits to Verizon Wireless.
Two levels of enhanced QoS are available for Verizon Wireless ESChat users. Business and commercial users receive traffic priority, which provides the supporting structure on how packets are treated within the Long Term Evolution (LTE) network, and admission priority, which provides the framework to allocate and retain network resources during heavy network use.
Government and public-safety users also receive access priority, which provides the network mechanism to allocate radio resources to subscribers during heavy network use.
“One of the key requirements for providing mission-critical PTT over LTE is the ability to ensure sufficient access to the wireless carrier network,” said Brett Moser, chief technical officer, ESChat. “During events where crowds are large, bandwidth can be diminished due to the high volume use of social media and live streaming applications. Integrating ESChat’s AWS infrastructure to the Verizon Wireless network and allowing our subscribers access to enhanced QoS profiles assures their ability to communicate in these situations.”
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