Executive
Bulletin
COMPUTERWORLD
INTRODUCTION
All Roads Lead to IP .................................2
TRENDS &STRATEGIES
Wading Into IP Telephony ..........................4
Getting ROI From VoIP ..............................7
VoIP Monitoring Tools ............................10
VoIP Security .......................................13
Call Centers and IP ................................15
Voice Over Wireless LANs .......................18
RESOURCES
QuickStudy:Session Initiation Protocol ......21
Emerging Technology:..........................23
IP Videoconferencing
IPCommunications
Voice-over-IP is changing the way we think of,and manage,communications.
Compliments of
Computerworld Executive Bulletin IP Communications 2
Converged IP networks allow for a wide variety of new applications to ride on the network and interact, including IP telephony,audioconfer- encing,videoconferencing,unified messaging and presence technolo- gies (like chat).
Getting Started
Corporate America is just starting down the road to voice-over-IP
(VoIP)communications,though
every analyst says it¡¯s just a matter of time before it becomes main- stream.¡°By 2009,the installed base of IP [communications]equipment will dominate the enterprise land- scape,but that¡¯s still a few years away,¡±says Robert Rosenberg,presi- dent of Insight Research Corp.in
Boonton,N.J.
There are several reasons why
VoIP hasn¡¯t been an overnight suc- cess.Companies started testing the waters of VoIP in 2001,but there were serious concerns about voice sound quality that slowed the mo- mentum (those concerns have been largely resolved).Moreover,one of the key reasons for implementing
VoIP was to reduce the long-distance charges associated with the tradi- tional phone networks,yet those charges have dropped so low that those cost savings are less dramatic.
The cost of IP phones is another reason for the slow pace.¡°The cost of going VoIP is certainly a factor here,since the price of newer IP phones will continue to be about
25%higher than the [traditional]al- ternative,¡±Rosenberg says.
¡°VoIP never was and never will be the least expensive way to deliver voice to the enterprise,but the al- lure of VoIP¡¯s rich applications like video telephony will slowly convert legacy customers,¡±he adds.
Indeed,there are a variety of rea- sons for moving to a converged IP network.Users report benefits such as the following:
¡öMuch lower costs for audiocon- ferencing. ¡öThe ease of moving,adding and changing phones.
¡öThe fact that the IT staff can manage a single network infrastruc- ture out of the data center,instead of two or more very different networks.
Thumbs Up
Early users are giving a thumbs up to converged networks,saying their technology choices have saved mon- ey and made their voice communi- cations setups more flexible.Some implement pure VoIP systems,while others rely on a hybrid of IP and cir- cuit-switched technologies.Either way,the users say they¡¯re realizing greater efficiencies just by starting to merge their voice and data net- works. IBM,for example,is rolling out a global VoIP network over the next five years that¡¯s expected to cut voice/data communications costs by
25%,according to Fred Spuleck,di- rector of global voice infrastructure at IBM.One efficiency will come from lowering the number of IBM¡¯s private branch exchange (PBX) switches from the current count of about 900 to just 11 IP-based PBXs,
Spuleck says.
Pure VoIP supporters say their systems are more resilient and can more easily support video or voice conferencing as well as new data ap- plications.For example,IBM¡¯s new
VoIP network will allow easy cre- ation of an audioconferencing sys-
Verizon Wireless cellular service is inelastic because the products and services it offers makes them the dominant leader in the wireless industry; therefore, a 10% change in calling plan prices (monthly access fees) would not affect the quantity demanded. Verizon Wireless can depend on this inelasticity in their pricing model because of the strength of its brand and the wealth of products and services it offers. Verizon Wireless' competitive advantage comes from its ultra-low churn rate (the percentage of customers who disconnect their service is less than one percent of its 60 million customer base). This indicator suggests that customers are satisfied with the service Verizon Wireless offers and a slight price increase probably would not drive its customers to the competition. This data also suggests that customers probably stay with Verizon Wireless because of its continued expansion of new technologies and services such as its all-digital nationwide CDMA network, EVDO' or its advanced data network (used to wireless send and receive email and other data almost anywhere in the US), and VoIP (Voice over Internet Protocol) that they use for their Push to Talk products. Verizon Wireless markets to a nearly all demographics nationwide and most of its services are offered in the smaller rural markets as a direct result of the one billion dollars per quarter it spends on improving its network as well as acquiring smaller wireless networks to make their nationwide network stronger and larger.
Cisco Designs, manufactures, and sells Internet Protocol (IP) - based networking and other products related to the communications and information technology (IT) industry and provide services associated with these products and their use. The company provides products for transporting data, voice within buildings, across campuses and globally. The products are utilized at enterprise businesses, public institutions, telecommunications companies and other service providers, commercial businesses, and personal residences. Cisco conducts its business globally and manages its business geographically. Its business is divided into the following three geographic segments: The Americans; Europe, M...
Program on Telecommunications and Cybersecurity Policy. (n.d.). The Global Information Society Project Program for Telecommunications Policy. Retrieved November 11, 2013, from http://www.telecom-program.org/
It is crucial that individuals take precautions when using technology to have conversations with others. Due to the fact that it can be dangerous, effective telephone communication is very important. Before using technology as communication devices, it is a good idea to know the main issues regarding it. It is also a good idea to know about any recent developments and how it affects its users. By making sure the technology has high ratings and positive feedback, there is a greater chance that you will be happier with the outcome of your purchase.
There are many techniques in the Criminal Justice field that are used to solve cases. DNA testing is one of the best ways to solve cases. Each individual has there own unique DNA profile. Also, in this case DNA testing proved that an innocent person did not do the crimes. Furthermore, I feel that Colin Pitchfork deserves life in prison without a chance of parole.
A. A. IP Cameras Keep Watching. PC World 30.10 (2012): 42. MAS Ultra - School Edition. Web. The Web.
In the article “Is Google Making Us Stupid” by Nicolas Carr published in The Atlantic in July, 2008, he debates a change that has happened since people began to use internet for information. Carr’s main reason is show to the people what the Internet has done to our brains; he showed how his life was before his use the Internet. The purpose of this article is to explain about how the Internet has affected our brains “Carr’s said the more time a person spent on the Internet, have greater difficulty in concentrating in a wider and deeper reading, like a book. He also said that his way of thinking had change and he did not have a lot of problem memorizing things. Before he used to be more focused when his read a book, but with Internet his became lazier, he could read a whole book, but with internet, he lost his concentration on reading. And reading was same thing that he used to do naturally, but it became obstacle for him”.
Telecommunications gained mainstream attention in the early 90’s; however the initial key market was business men and women, who used their phones whilst being on the move and so allowing them to communicate with their companies with ease. Though in the modern era, telecommunication went through segmentation in the market trends, and now in this day and age it would be difficult to find someone who does not own some form of mobile technology. Many phone providers battle to provide the best service for their customers (Figure 1).
Skype has a solid commercial viability since it’s introduction into the market because of the free calls between its users. Skype`s is one of the most popular paid services for communication it givers member the ability to make regular landlines and mobile phones from anywhere in the world. Skype`s also has a target concentration in place which helps boots populate rate with the young adults who have a much better understanding
Berean¡¦s existing network infrastructure is wire line, and uses a T1. Remote users access the network through a dial-up modem pool. Berean¡¦s wire line network model severely limits the accessibility and effectiveness of the Berean network. For example, employees in Berean facilities are unable to access the network easily from meetings, the cafeteria, or anywhere other than their offices. In addition, the effectiveness of remote users is limited by the slow speed of present-day dial-up modem connections.
There is a slowdown in sales of mobile handsets, in some markets like the UK, as the mature part of the product lifecycle is reached. Customers are exposed to a barrage of different images and messages by mobile phone companies, as the competition gets tougher. Vodafone appeals to new customers and aims to keep its existing ones by emphasising the uniqueness of the brand.
By 2001 the telecommunications market was softening; meaning prices were falling due to an excess of supply and a decrease in demand as the dot com boom ended. WorldCom had already signed contracts with third party telecommunication companies promising to complete their calls. These multi billion dollar contracts were actually costing more in expenses than what the company would or was receiving in revenue (Sandberg, Solomon, & Blumenstein, 2002).
Back in the late 70s and early 80s phones did not have cameras or web browsing or anything like that. They were basically just plastic boxes with wiring inside unlike today’s smartphones with glass touchscreens HD camcorders, video calling, and web capability, but if not for the first cellphone we would not have come so far since then. In 1973 the founder of Motorola Martin Cooper made it easier to call and chat with people and made the worlds first mobile phone. However, it was not approved by the FCC until September 21, 1983, when it became the first commercial portable cellphone. At a cost of $3,995 people thought of this as the future of communication and everyone wanted to get their hands on one though looking back on it now they might have been a little over priced compared to todays modern cellphone prices. We have come a long way since the 70s phones have become more compacted easier to take on the go and today mankind is still coming up with ever newer ways to stay close to ...
Since its inception, the telephone has become one of the most important inventions of all time. Although some were skeptical about its replacement over telegrams, in the end the advent of this fine communication equipment has won the hearts of many. As a matter of fact, the telephone system had come to numerous facelifts that it literally connected the world before the internet was born. Because of its importance, homes and businesses can not live without it. In the U.S. alone, most if not all have a phone in the house.
Making a telephone call no longer should conjure up visions of operators connecting cables by hand or even of electrical signals causing relays to click into place and effect connections during dialing. The telephone system now is just a multilevel computer network with software switches in the network nodes to route calls get through much more quickly and reliably than they did in the past. A disadvantage is the potential for dramatic and widespread failures; for as has happened.