Nermeen Ismail provided a cover-to-cover review of the book, lending considerable expertise in
video and voice over IP.
Jesse Herrera also provided a full review, verifying all parts of the text in minute detail.
The authors are particularly grateful to Stuart Taylor for providing a number of suggestions and
comments on the introduction and architecture chapters; to Tripti Agarwal for taking time to
review the H.
Hội nghị truyền hình là công cụ hữu hiệu trong sản xuất kinh doanh trên thế giới
hiện nay. Nhờ có hội nghị truyền hình mà chúng ta có thể tổ chức các cuộc họp giữa các
bên tham gia ở các châu lục khác nhau, rút ngắn khoảng cách và tiết kiệm nhiều thời gian
cũng như tiền bạc.
Giới thiệu chung: • Hội thảo trực tuyến (Video Conferencing) là một dịch vụ cho phép tổ chức hội nghị thông qua môi trường mạng Internet. • Nhiều lợi ích cho các tổ chức
“Chính phủ sẽ hạn chế tổ chức hội họp tập trung toàn quốc theo cách truyền thống mà tăng cường họp, hội nghị truyền hình trực tuyến từ xa.
Luận văn bao gồm 3 chương: Giới thiệu về truyền hình hội nghị IP Video Conferencing và các nguy cơ, lỗ hổng bảo mật với dịch vụ này. Trình bầy, phân tích chi tiết về vấn đề bảo mật cho hội nghị truyền hình. Đề xuất giải pháp bảo mật cho dịch vụ hội nghị truyền hình cho khối cơ quan chính phủ. Mời các bạn tham khảo!
Syngress books are now distributed in the United States and CanadaO'Reilly Media, Inc. The enthusiasm and work ethic at O'Reilly are incredible, and we would like to thank everyone there for their time and effects to bring syngress books to market: Tim O'Reilly, Laura Baldwin, Mark Brokering, Mike Leonard...
. Tích hợp điện thoại số và dịch vụ truyền dữ liệu
. số hóa mạng điện thoại để cho phép truyền voice, data, text,
graphics, music, video … qua mạng điện thoại sẵn có
. Cung cấp dịch vụ ISDN tốc độ cao: image, file transmission,
video conferencing …
UMTS is real. In a continuously growing number of countries we can walk in the stores of
mobile network operators or resellers and take UMTS PC cards or even third-generation (3G)
phones home and use them instantly. Every day the number of equipments and their feature
sets gets broader. The “dream” of multimedia on mobile connections, online gaming, video
conferencing, real-time video or even mobile TV becomes reality.
With rapid technical innovation the mobile telecommunication sector has continued to grow
and evolve strongly....
Typical audio signal classes are telephone speech, wideband speech, and wideband audio, all
of which differ in bandwidth, dynamic range, and in listener expectation of offered quality. The
quality of telephone-bandwidth speech is acceptable for telephony and for some videotelephony and
Modern WAN architectures require additional network capabilities to support current higher bandwidth
and mission-critical applications. Requirements for deploying voice over IP (VoIP) and video
conferencing include high availability, IP multicast, and quality of service (QoS). Today, most
enterprises rely on private WAN connections such as Frame Relay, ATM, or leased-line services to
connect their businesses.
Conferencing involves communication among several users. Multimedia conferencing, including audio, video, instant messaging, whiteboard sharing, and ﬁle transfer, is a popular service on the Internet and in enterprises. Chat rooms where users exchange instant messages are an example of a conference service on the Internet. The collaboration tools used in most enterprises are also examples of conferences.
This course of study explores theory and practice across
a number of domains including the news media, business
writing, professional presentations, communication
technology, interpersonal communication, organisational
communication, cross-cultural communication, and public
Our communication team uses a wide range of teaching
strategies to inform, stimulate and develop your learning
The explosive growth of distributed computing has been fuelled by many factors. Applications such as video conferencing, teleoperation and most notably the World Wide Web are placing ever more demanding requirements on their underlying communication systems. Having never been designed to support such diverse communication patterns these systems are failing to provide appropriate services to individual applications. Artificial neural networks have been used in areas of communication systems including signal processing and call management (Kartalopolus, 1994)....
In today’s fast paced economic climate, enterprise companies are continually
pressured to do more with less, yet they are expanding their reach nationally
and globally at a record pace. The corporate network is being stretched like
never before. New applications such as video conferencing and monitoring,
file sharing, and Voice over IP (VoIP) demand more bandwidth. Regulatory
requirements are putting pressure on IT resources for compliance, and remote
locations need to receive the same application support and resources as the
corporate network – all without increasing cost....
Computer networks are gaining increasing importance as they penetrate business and everyday life. Technological evolution results in increased computational power and transmission capacity. These phenomena open the way to the development and exploitation of new applications (e.g. video conferencing) which require demanding services from the network. As a result, computer networks are in continuous evolution and the protocols regulating their operation must be assessed for their suitability to new technologies and ability to support the new applications. ...
During 2001 96% of corporate organisers made use of the Internet for communication with
delegates, 72% used teleconferencing, and 62% used video conferencing, figures that have
increased dramatically in the last few years. However, far from reducing the need for meetings,
the proliferation of text, e mail and internet messaging has increased the value and importance
of face-to-face communication. “Making messages memorable” has become the greatest
business challenge of the 21st
IIFT has its Data Centre equipped with Unified
Storage, Virtualized Server Environment, Web
Servers, Email Servers, etc. for the use at the
Institute. For its internet requirements IIFT avails 24
MBPS leased line with three backup ISP on load
balancing. Apart from this, IIFT also uses video
conferencing facility to connect to a global audience
spread across Africa, Europe and South East Asia.
A rather different perspective is offered by Kelsey and D’Souza (2004) who
investigated the experiences of 31 students completing postgraduate agriculture
courses by distance education. In their study, formal interactions between students
were not built into the majority of the courses, but could occur through email, video
conferencing and an online learning system. Disappointingly, despite purporting to
explore whether interactions between learners...