Mobility

A Robust Push-to-Talk Service for Wireless Mesh Networks

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Executive Summary

Push-To-Talk (PTT) is a useful capability for rapidly deployable wireless mesh networks used by first responders. PTT allows several users to speak with each other while using a single, half-duplex, communication channel, such that only one user speaks at a time while all other users listen. Furthermore, enabling regular PSTN phone users (e.g., cell phones) to seamlessly participate in the wireless mesh PTT session is key to sup-porting the heterogeneous environment commonly found in such settings.

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