Tehrani S Ip Telephony Dictionary

Tehrani's IP Telephony Dictionary -2nd Edition, The Leading VoIP and Internet Telephony Resource provides over 11,000 of the latest IP Telephony terms and more than 450 illustrations to define and explain latest voice over data network (VoIP) technologies and services. It provides the references needed to communicate with others in the communication industry where many new terms and concepts are being added each day. It includes directories of magazines, associations and other essential trade resources to help industry professionals find the information they need to succeed in this rapidly growing industry. To ensure this dictionary contains the latest definitions, a senior editor, a panel of 15 experts, and more than 1,025 industry reviewers added, validated, and edited definitions. This book is an essential reference book for those involved in all aspects of the Internet and voice over data network (VoIP) industry.

If you want to grasp the full length and breadth of the rapidly developing computer telephony field, this book is the place to start. Author Richard Grigonis thoroughly explains even the most abstruse ideas in a concise manner that is aimed at all kinds of readers -- students, business executives, telecom managers, call center supervisors or entrepreneurial developers. Each encyclopedia entry is both an adroit explanation of computer telephony technology and a buyer's guide-like discussion of real-world products based upon technology currently available for business and residential communications solutions. ;

Introduction to EVDO explains the fundamentals of the EVDO system, the products it uses, how it operates, what services it can offer, and how EVDO fits and compares with other mobile radio technologies. This book explains how the 1x Evolution (1XEV) data only (EVDO) system modifies (optimizes) the 1.25 MHz IS-95 radio channel structure to provide high-speed data services (up to 2.4 Mbps) to wireless customers. The EVDO system allows cellular service providers carriers to use one of more IS-95 CDMA radio channels (with changes) to provide broadband high-speed data services to their customers. The EVDO is an "always-on" system that allows users to browse the Internet without complicated dialup connections. You will learn that the key types of EVDO devices include external radio modems, wireless PCMCIA cards, embedded radio modules, and mobile telephones. External radio modems allow the customer to simply plug in their EVDO device to their USB or Ethernet data port to their desktop or laptop computer. EVDO PCMCIA cards can be added to most laptop computers or embedded radio modules allow devices such as PDAs and Laptops to integrate high-speed wireless without adding PCMCIA cards. Some CDMA mobile telephones include both IS-95 CDMA (voice and low speed data) and EVDO (high-speed packet data) capability. Because the needs of voice and data communication are different, the airlink design of the IS-95 and EVDO radio channel structures are different. 1xEV devices can have single mode (only EVDO) or dual mode (both IS-95 voice and EVDO data) capability. You will discover how single mode devices can only access the high-speed data rate (HDR) services on the EVDO radio channel and dual modedevices can access either the EVDO HDR channel or the IS-95 voice and medium-rate data traffic channels. This book provides the basic technical components and operation of EVDO technology. You will learn the physical radio channel structures of the 1xEV system along with the basic frame and slot structures. Described are the logical channels and their functions. Explained are the key EVDO network components and how they communicate with each other. Explained is the fundamental capabilities and operation of the EVDO radio channel including asymmetric data rates, adaptive modulation (QPSK, 8-PSK, or 16-QAM), and the use of a single control channel with multiple capabilities. You will discover how a scheduling algorithm can be used to fairly allocate the necessary data rates for EVDO users is provided. Described are the 64 coded channels and how up to 60 of them are available to provide data services to active users and how many other users (possibly 600 per channel) can be added who have a 10% usage activity factor. To make the EVDO data channels transparent with the IS-95 CDMA voice channels, handoffs can occur between IS-95 CDMA radio channels and EVDO radio channels.

Perfect for self-studiers or students, this Farsi language education book takes a user-friendly and clear approach. Farsi is the language of Persia (present-day Iran)--the mellifluous mother tongue of famed 13th-century poet Rumi, whose works are still among the best-selling poems in America today. Farsi for Beginners is a complete language course by experienced teacher Dr. Saeid Atoofi which can help you to speak the language and understand this beautiful work of art in its original, as well as open doors to Persian culture. Whether for pleasure, travel or business, language learners will find these lessons clear and easy to follow. By the end of this course, you'll be able to understand short sentences, express your basic needs, and read and write the 32-letter Farsi alphabet. Farsi for Beginners contains the following essential features: Downloadable native-speaker audio recordings help you to pronounce Farsi accurately. Dialogues and stories about a family traveling to contemporary Iran. Idioms, sayings and poems introducing you to the cultures in which Farsi is used. Extensive exercises with answer keys to guide your learning process. Photos and insider cultural tips teach you about Persian culture. Nearly one million Iranian-Americans live in the U.S. today, and a part of Los Angeles is referred to as "Tehrangeles". Farsi is also considered a "critically needed" language by the U.S. government. Learning Persian with Farsi for Beginners and its accompanying audio disc, can open opportunities for travel, for work, or simply to meet new people and understand their lives in a totally new way.

Colloquial Persian is easy to use and completely clear. Specially written by experienced teachers for self-study or class use, this course offers you a step-by-step approach to written and spoken Persian. No prior knowledge of the language is required. What makes Colloquial Persian your best choice in personal language learning? * interactive - lots of dialogues and exercises for regular practice * clear - concise grammar notes * practical - useful vocabulary and pronunciation guide * complete - including answer key and special reference section By the end of this rewarding course you will be able to communicate confidently and effectively in a broad range of situations. Accompanying audio material is available to purchase separately on CD/MP3 format, or comes included in the great value Colloquials Pack.

Digital violence continues to increase, especially during times of crisis. Racism, bullying, ageism, sexism, child pornography, cybercrime, and digital tracking raise critical social and digital security issues that have lasting effects. Digital violence can cause children to be dragged into crime, create social isolation for the elderly, generate inter-communal conflicts, and increase cyber warfare. A closer study of digital violence and its effects is necessary to develop lasting solutions. The Handbook of Research on Digital Violence and Discrimination Studies introduces the current best practices, laboratory methods, policies, and protocols surrounding international digital violence and discrimination. Covering a range of topics such as abuse and harassment, this major reference work is ideal for researchers, academicians, policymakers, practitioners, professionals, instructors, and students.

An introduction to a broad range of topics in deep learning, covering mathematical and conceptual background, deep learning techniques used in industry, and research perspectives. “Written by three experts in the field, Deep Learning is the only comprehensive book on the subject.” —Elon Musk, cochair of OpenAI; cofounder and CEO of Tesla and SpaceX Deep learning is a form of machine learning that enables computers to learn from experience and understand the world in terms of a hierarchy of concepts. Because the computer gathers knowledge from experience, there is no need for a human computer operator to formally specify all the knowledge that the computer needs. The hierarchy of concepts allows the computer to learn complicated concepts by building them out of simpler ones; a graph of these hierarchies would be many layers deep. This book introduces a broad range of topics in deep learning. The text offers mathematical and conceptual background, covering relevant concepts in linear algebra, probability theory and information theory, numerical computation, and machine learning. It describes deep learning techniques used by practitioners in industry, including deep feedforward networks, regularization, optimization algorithms, convolutional networks, sequence modeling, and practical methodology; and it surveys such applications as natural language processing, speech recognition, computer vision, online recommendation systems, bioinformatics, and videogames. Finally, the book offers research perspectives, covering such theoretical topics as linear factor models, autoencoders, representation learning, structured probabilistic models, Monte Carlo methods, the partition function, approximate inference, and deep generative models. Deep Learning can be used by undergraduate or graduate students planning careers in either industry or research, and by software engineers who want to begin using deep learning in their products or platforms. A website offers supplementary material for both readers and instructors.