A complete and systematic treatment of signal processing for VoIP voice and faxThis book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers:Voice compressionPacket loss concealment techniquesDTMF detection, generation, and rejectionWideband voice modules operationVoIP Voice-Network bit rate calculationsVoIP voice testingFax over IP and modem over IPCountry deviations of PSTN mapped to VoIPVoIP on different processors and architecturesGeneric VAD-CNG for waveform codecsEcho cancellationCaller ID features in VoIPPacketization—RTP, RTCP, and jitter bufferClock sources for VoIP applicationsFax operation on PSTN, modulations, and fax messagesFax over IP payload formats and bit rate calculationsVoice packets jitter with large data packetsVoIP voice qualityOver 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension.VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.

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