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In the recognition of voice over Internet protocol(VoIP) speech, packet losses pose a challenge that is generally addressed by packet loss concealment(PLC) techniques. But improper concealment by these PLC techniques result in unreliable observations that contribute adversely to the Viterbi decoding step and result in misrecognitions. We propose a graphical model based decoding architecture that can...
Deployment of VoIP service brings in security challenges that necessitate additional protection measures for corporate networks. Logging of VoIP sessions between a corporate LAN and the Internet becomes an essential requirement, to prevent misuse, to enforce security policies and to respond to security incidents. Identifying valid VoIP sessions and call tracking from the signaling to media session...
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