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Telephone --- Téléphone --- Téléphone --- Telephone service --- Telephones --- Communication and traffic --- Speech processing systems --- Telecommunication --- Télécommunications --- Télécommunications --- Telephonie

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Telecommunication services --- Foreign trade policy --- World Trade Organization --- AA / International- internationaal --- 384.0 --- Telecommunication --- -Telephone --- -384.041 --- Telephone service --- Telephones --- Communication and traffic --- Speech processing systems --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Telecommunicatie: algemeenheden. --- Rates --- -Government policy --- -Deregulation --- -AA / International- internationaal --- -Telecommunication services --- Telephone --- 384.041 --- Deregulation --- Government policy --- Telecommunicatie: algemeenheden

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Telecommunication --- Telephone --- -Telephone --- -654 --- Telephone service --- Telephones --- Communication and traffic --- Speech processing systems --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Telecommunication and telecontrol (organization, services) --- 654 Telecommunication and telecontrol (organization, services) --- Téléphone --- Téléphone --- 654 --- Télécommunications --- Telecommunication - United States --- Telephone - United States

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Telephone --- Telecommunication --- Data transmission systems --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Data transmission systems. --- Telecommunication. --- Telephone. --- Norway. --- Communication --- Information theory --- Telecommuting --- Telephone service --- Telephones --- Communication and traffic --- Speech processing systems --- Data communication systems --- Transmission of data --- Digital communications --- Electronic data processing --- Electronic systems --- Telecommunication systems --- Norveška --- Norwegia --- Norge --- Norwegen --- Kongeriket Norge --- Kingdom of Norway --- Norvège --- Noreg --- Norvegia --- Kongeriket Noreg --- Norga --- Norgga gonagasriika --- Norja --- Noruw

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This book begins with an introduction to PBXs (Private Branch Exchanges) and the scene, statistics and involved actors. It discusses confidentiality, integrity and availability threats in PBXs. The author examines the threats and the technical background as well as security and forensics involving PBXs. The purpose of this book is to raise user awareness in regards to security and privacy threats present in PBXs, helping both users and administrators safeguard their systems. The new edition includes a major update and extension to the VoIP sections in addition to updates to forensics.

Electrical Engineering --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Internet telephony --- Telephone --- Security measures. --- Private branch exchanges --- Telephone service --- Telephones --- Internet-based telephony --- Internet phone --- Internet telephone --- IP telephony --- Voice over IP networks --- Communication and traffic --- Speech processing systems --- Telecommunication --- Telephone systems --- Telecommunication. --- Computer security. --- Forensic medicine. --- Communications Engineering, Networks. --- Systems and Data Security. --- Security Science and Technology. --- Forensic Science. --- Forensic medicine --- Injuries (Law) --- Jurisprudence, Medical --- Legal medicine --- Forensic sciences --- Medicine --- Medical laws and legislation --- Computer privacy --- Computer system security --- Computer systems --- Computers --- Cyber security --- Cybersecurity --- Electronic digital computers --- Protection of computer systems --- Security of computer systems --- Data protection --- Security systems --- Hacking --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Protection --- Security measures --- Electrical engineering. --- System safety. --- Forensic science. --- Criminalistics --- Forensic science --- Science --- Criminal investigation --- Safety, System --- Safety of systems --- Systems safety --- Accidents --- Industrial safety --- Systems engineering --- Electric engineering --- Engineering --- Prevention