Posts Tagged ‘telecommunications’

Introduction To VoIP Technology And Phone Calls

Wednesday, December 21st, 2011

VoIP technology is based on the integration of the internet with telephony applications, equipment and networks. In essence, voice data is transmitted over the net in digital form instead of the analog signals that go over public switched telephony networks (PSTNs). This Voice over IP technology makes the traditional phone and landline redundant, since it only needs the internet and a special broadband phone.

Technology: The technology is based on converting voice signals that are analog into digital packet data that conforms to the Internet Protocol or IP. These digital packets can then be transferred over packet-switched networks such as the internet, and other LAN and WAN networks. At the other end, the digital packet data is again decoded and converted back to analog signals.

By converting their data into little packets similar to the data flowing on the internet, Voice over IP providers are able to piggyback on internet infrastructure and bypass the telecom companies’ PSTN networks. Voice signals can be transmitted to any place on earth which has internet connectivity. All it needs is a broadband phone with the required voice codecs to convert analog signals to digital data and vice-versa.

The user is required to have an ADSL modem and internet line, along with an active internet account with a local ISP. In other words, there should be broadband internet available for use. The VoIP phone looks just like a cordless phone, although it can also be software installed on a computer and used with the mike and earphones of a headset.

Usage: A computer is not necessarily required to operate the phone, if the broadband phone is purchased. Note that a computer may still be needed once for the initial installation and configuration of the phone. Apart from buying the high-tech phone, using Voice over IP is about the same as using a landline phone – just dial, talk and listen, and hang up when the conversation is over.

Features: VoIP phones offer most of the standard services and features available to subscribers of normal land lines and mobile phone networks. This includes caller ID, voice mail, call waiting, forwarding and transfers, three-way calls, etc. Accounts can be managed online, and the calls made with prepaid credits and topups, or postpaid on a monthly basis.

Calling rates: The free and cheap phone calls are probably the biggest advantage of using VoIP phones and technology. Calls between these phones on the same network are always free, since it is the same as two people chatting on the internet using computers. When more people start joining these Voice over IP networks, more and more calls will become free.

Even calls made to landline or mobile phones outside the provider’s network are a lot cheaper. National and international calling rates for VoIP can even be 50% lower than landline rates. The costs of using Voice over IP phones will go down even more once traditional telecom companies start routing the majority of their voice data through the internet to reduce the cost and load on their old congested networks.

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Get Unlisted Phone Number

Tuesday, November 1st, 2011

Searching for personal information on a phone number that just called you earlier is as simply as going online and using a 411 search. However, what if the number you are looking for is not listed? Should this be the case, then what you might want to learn is on how to get unlisted phone number information. It turns out that the number you are trying to gain information from is actually either a cell phone number or perhaps even a landline number where the owner deliberately kept his details private.

But this does not mean that it is impossible to get the information you want simply because there is still a specialized method you can resort to which is commonly called reverse phone number search. Reversing phone numbers comes with a lot of benefits. And to get unlisted phone number information is just one of the many useful information you can get from doing so. If you are looking for someone who has been missed for quite some time yet all you have is an old phone number, reversing it might just give you some details such as knowing the person’s present whereabouts.

This reverse processing in fact is also being used by private detectives to help out in most of the cases they are working on. Not only will it prove to be convenient, you can also save a great amount of time should you get the results upon doing your search.

There are many other situations wherein to get unlisted phone number details will prove to be very helpful. One good example is when you often get calls from someone you actually know nothing about or during those times where whether you like it or not, your phone just keeps on ringing and it seems that there is simply nothing you can do. Calling back the number on the other hand will only result to a waste of your time simply for not getting any answers in return.

Whenever situations such as these arise, it is high time to learn how to get unlisted phone number details right away. The moment you spend for not getting some clear answers can only add to the anxiety you might already be suffering from getting such phone calls. This process is quite legal so there is nothing for you to worry about aside from making sure not to use the information you can gain for malicious acts.

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The Invention Of Cell Phones

Saturday, August 14th, 2010

Images of old cell phones from the 90s are a surefire way to spark laughter-they are big, cumbersome, and look ridiculously outdated compared to the small gizmos we have today. So it should be surprising to learn that the first conception of crude, mobile phones actually dates all the way back to 1947. Researchers tried to evolve the technology used in walkie talkies. They realized that by using small cells instead of relying on single frequencies they could reuse the same frequencies, and thereby dramatically increase the traffic capacity. In other words, the initial kernel of invention was present, but unfortunately its potential was halted.

The FCC (the organization in the U.S which regulates anything to do with broadcasting or sending television or radio waves) blocked AT & T’s request to allocate a large number of radio spectrum frequencies. This would have provided the groundwork for widespread cell phone use and would have given AT & T incentive to further develop the technology. Under the strict FCC regulations of the time, airwaves only allowed for twenty-three phone conversations to take place at any given time. This mentality was symbolic of the limited understanding of cell phone technology’s potential. In hindsight it looks like a boneheaded decision, but it should be remembered that this was 1947, so the FCC should be at least partially excused for not understanding the full implications of modern communications technology. Still though, the idea lay buried for decades.

It wasn’t until 1973 when Dr. Martin Cooper, former general manager of the Systems division at Motorola, was credited with making the first ever call on a portable cell phone-a privilege he enjoyed as its chief creator. Ironically, the first call was made to the head of research labs at Bell, their chief competitor. Perhaps this was actually fitting since Bell was responsible for inventing the crude mobile phone that was designed to be used in police cars in the 40s. Four years later, Bell created a prototype that was used on trial in Chicago by up to two thousand people. Two years after that, in a completely unrelated venture, a separate operation was undertaken in Tokyo. There was considerable international buzz about the new technology as it went from being something existing only in science fiction to something that would appear imminently.

In 1981 Motorola joined with American Radio Telephone to start a second U.S. cellular telephone system test in Washington and Buffalo. The movement was gaining momentum, and by 1982 the FCC finally authorized commercial cellular services for the United States. Ameritech made the first American commercial analog cellular service available in Chicago. Still, the technology was expensive and it was far from being as accessible as cell phones are today. But by 1987 cellular phone subscribers exceeded one million and airways were crowded.

The 90s brought on a new wave of cell phone technology that ushered in the modern era where one belongs to the average person. Yes, those big 90s clunkers look old, but who would have believed that the cell phone was actually conceived of so many decades ago?

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2 Small Tweaks To Get More Performance Out Of Windows Vista

Friday, July 16th, 2010

If you have switched over from XP to Vista you surly will have known by now that Vista is much slower. This lack of speed has to do with Vista dedicating a lot of its resources to trying to “look pretty”. Making the operating system look nice is great and all but when it comes time to actually get some work done it can be a huge problem. In this article I am going to show you two quick ways to make your Vista perform a it faster but you are going to have to be willing to sacrifice some of Vistas looks in order to get more function. Keep in mind that there really is no point in having your computer look really nice since you are the only person that is really going to be seeing it.

If you are using Vista Home Premium, Business, Enterprise or Ultimate, chances are that you have the Aero effect turned on. The Aero effect is designed to make your computer’s windows have more of a glass like effect to them, which no one really needs at all. It also enables Windows Flip 3D which is something that no one really needs (if you don’t know what Windows Flip 3D is, open a few windows, hold the Windows Button down and press the Tab button. You should be able to cycle through all of your currently opened windows in a fancy format). These features are really just pointless things that Windows has added to make your computer look really cool. Here’s how to get rid of the Aero effect:

What your going to want to do now is to click Start, click on the Control Panel and then on the left hand side make sure that the Control Panel Home is selected. Now click on Appearance and Personalize, click on the Personalize link, click on the Windows Color and Appearance and at the bottom of the window select “Open classic appearance properties for more color options”. A new window should appear and in this window where it has the Color Scheme drop down box just select Windows Vista Basic. Now click Apply and then OK and this should turn off the Aero effect.

The second thing that you probably don’t need that Vista has to offer is the sidebar. Now, unless you actually use the gadgets on the sidebar regularly (the clock doesn’t count, there’s one in the bottom right hand corner of your screen that is perfectly good) then I suggest that you get rid of it. It really serves no function to the average user except to make your computers desktop look cool. Here’s how to do it:Right click on the windows sidebar icon in the System Tray and select properties (the system tray is that little group of icons in the bottom right hand corner next to the clock). In the Windows Sidebar Properties dialog box uncheck the box the “Start Sidebar when Windows Starts” and select Apply and then OK. Now just right click on the Windows Sidebar Icon in the system tray again and select Exit.

By doing both of these things you have now given yourself some more resources to use which in the long run will make your computer faster.

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A Brief Understanding Of Choosing Registry Cleaners

Friday, July 16th, 2010

As you may have realized, there is a vast amount of registry cleaners that are available. Most of them offer various options that can be used to treat problems that are occurring on your computer. If you are not familiar with using a registry cleaner, then some of the following information make make them easier to understand and choose.

For the most part, when there are repeated issues occurring on a computer, it is likely because of the registry. This can happen when there have been numerous programs installed into the computer, which later edit the registry in some format. If the registry never updates after the deletion of these programs or there are too many conflicting keys in the registry, it results in problems.

There is a large amount of registry cleaner programs which can be used for treating the issue. You need to understand that though these are all cleaners, they are not going to give the same results. You will find many programs that will be offering various solutions to treat your computer problem. You should take time to research about the program before you commit to buying it.

Some computers are going to need a very thorough cleaning. You may have to do repeated scans and runs of the program before you can get the desired result on your computer. Likewise, if you are using a very reliable and professional program, you may be able to choose settings that will allow you to get an in depth cleaning.

Almost every registry cleaner will have to scan your computer before you can take any sort of action to fix the problem. If the program isn’t scanning the computer, it has no way of knowing what the issues are with your registry. You should consider using a cleaner that will be able to tell you about the specific problems that are in your registry. This way you will know what programs you should avoid installing into your computer again in the future.

It is always a concern to choose a program that is known to be trustworthy and safe for your computer. Though there are many various programs that are promoted, not all of them are going to be able to give you the top results that you need. You may also discover that there are a number of programs on the internet which are promoted as cleaners, but only cause more problems because they are a form of malware.

If you suspect that you are having computer crashes because of your registry, trying a few cleaner programs may be able to help you. Overall, the use of registry cleaners can be useful and important for helping you to solve problems with your computer. It is important to understand that these programs may not be able to solve every issue you are having. If you continue to have computer crashes, you may want to allow a technician to analyze your computer.

Now you can find all the information and details you need to make your computer run more effectively and efficiently when you use the best registry cleaners available. When you see the registry cleaners reviewed, you will be able to select the best cleaner for your system.

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Make Your Choice From One Of Many Registry Cleaners

Tuesday, July 13th, 2010

Have you heard of registry cleaners? If not you might want to learn more about them. If you have, you might be wondering if you should use this software. Some computer experts agree, that this software will help your computer operate better. If you believe your computer is not operating at its full capacity, you might want to use this software.

Your computer registry tracks your system in general. This means your computer settings and hardware configuration. If also tracks the computer user preferences, association files, and the computer software. In addition, the registry tracks the system relationship between hardware and software applications.

Some computer experts believe that the registry cleaner will untangle what can become a complicated mess in your registry. This will help your system run faster and more efficiently. Your computer registry will become over sized and hard to manage if left uncleaned.

The result could be an unstable computer. If your computer takes longer than normal to start up, your system might need to be cleaned. Some feel their computer runs faster after a registry cleaning. Of course the process of cleaning your registry is a very complicated process, but you are probably only interested in getting your computer to run faster rather than understanding all the technical processes involved.

No matter the registry cleaning software you use, make sure to back up your system before you start the cleaning process. Many cleaning software have a backup system function. Before you do anything back up your system. The registry is a very sensitive component of your computer.

If a necessary key is deleted by the software, you might not be able to reboot your system and you will have to restore you entire computer. You will discover that there are many software programs available online to clean your registry. Some are free, some you pay for.

If you need to free up space on your hard drive, you can do so by deleting temporary files. Some people like to leave their recycle bin intact in case they need to recover a file they deleted. But you can safely empty your recycle bin if you know you no longer need the files in the bin.

Read the reviews on all of the registry cleaners you are considering using. The reviews will give you an idea of how effective a particular program is and if a non technical person should use it, or if it should be used only by those who have computer knowledge. If you know someone who is a computer expert, ask his advice on which software to use to clean your computer registry.

When it comes to cleaning unneeded software on your hard drive, it’s important to get software known as registry cleaners. You can read our registry cleaners reviewed and see which ones work the better. You will find what your looking for.

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Registry Cleaners Are Able To Certainly Provide A Number Of Advantages

Friday, July 2nd, 2010

Registry cleaners provide some useful benefits and are basically a set of software applications that can be used to resolve certain Windows operating system problems. These software applications are able to remove any unwanted or even redundant items which in turn help to ensure that the Windows registry is restored to its proper functional state. However, not everyone agrees that there is need to use such applications and those that oppose its use mention that these programs are neither useful nor even necessary.

Registry cleaners are used to solve problems related to the elimination of configuration data from the Windows registry, especially that information that is no longer required or wanted by the Windows operating system. The data to be removed can be information that has been left behind by software that has not been uninstalled and it can also be information that is redundant or even settings that malware use to do damage to the computer. Cleaning up the registry will help in picking out unnecessary values which will then be repaired or even deleted.

Software applications that help in clearing out the registry provide users with some notable benefits not least of which are that of improving the functionality of the computer which will work much more efficiently after the registry has been cleaned up. The computer registry contains complex and lots of information which means that manually sifting through this information is not an easy task.

Therefore, there is need to automate this function which is done through registry cleaners that will search out the different invalid entries and other things including broken links and missing references. After locating this information the cleaner will resolve the issue and clean up the registry.

Correcting registry keys that are invalid can prove to be very beneficial which is why such software programs are much in demand. Some of these cleaners can also do other services such as backing up the hard drive and also restoring certain functions that will help to restore the registry to a state before any changes were made. This is especially useful when some changes are made but which are undesirable and so it is necessary to restore the registry to its original condition.

For people that add and remove programs often there is need to use the cleaning software applications in order to keep the registry clean and uncluttered with useless information.

There are a few downsides to using such software as well. The biggest such downside is that the cleaner does not address the severity of the fault and can easily flag an error (erroneously) as being critical when in actual fact there is nothing serious wrong. So, before using such software, it makes sense to determine whether using such programs is desirable or even necessary.

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Preserving Essential Documents With Registry Cleaners

Friday, July 2nd, 2010

Anyone who is familiar with computers is well aware of the registry in their machine. It is the database, sometimes called the brain of the computer, and holds all the memory of what is entered in the machine. Registry cleaners are software specifically designed for the Microsoft Windows operating system to keep it running smoothly.

Registry in this PC is responsible for holding a huge number of settings and can lead to a large amount of problems if it is not cleaned on a regular basis. Things such as broken links, invalid entries, missing references and other such things can occur. Finding the right registry cleaner for this task is very important.

Problems sometimes encountered with the registry can include such things as the system crashing, numerous errors in operation and the computer suddenly ‘freezing up’. This causes not only an interruption of one’s work but complete frustration with the breakdown of the system. Being in the middle of important work and suddenly have a blank screen can be devastating.

This software is designed to remove repeated or undesired items from the Windows registry. This might include something left over from previous removed software or other problems. The frequency in which this cleaner is to be used varies. For this reason, a person having problems with their computer should have someone analyze the situation and recommend the correct steps to be taken.

With the large number of these cleaners on the market today, one has a wide choice of selection and should carefully read what each company says about its product. Having one that scans for invalid or obsolete information and then lists the errors found is a good choice. With this backup of errors one can then retrieve anything that was removed should the need arise.

When a registry goes on the blink, everything in the machine can go into default and fail to work properly. In extreme occurrences, one might not be able to boot their machine and have to call in a computer technician to get it running properly. This technician will use a registry cleaner to get things back in working order but this usually turns out to be rather expensive when done by an expert.

It is obvious, with the complicated structure of a computer, that it must be properly cared for if it is to operate smoothly and do the job for which it was purchased. To keep this machine in tiptop condition, having the proper software for this purpose is important. Fortunately, one can find a number of companies with this software available.

The computer of today stores data in huge amounts. This has replaced the many hours of handwriting that was required, before it became available for everyone’s use. Having this data secure against any loss is essential in today’s world. For this reason, every effort should be made to keep this information readily available and safe. Keeping one’s computer in first class working order with software can be done with registry cleaners.

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Are Registry Cleaners Truly Necessary?

Tuesday, June 29th, 2010

Registry cleaners are one of the controversial topics among computer users. Some claim the regular use of them is necessary for optimal computer performance, increasing speed and disk space. Others claim they do more harm than good, and should be avoided at all costs.

Registry cleaners basically scan your computers registry for entries like malaware, invalid or unused files, DLL files that may not be of use, and corrupted or fragmented files. They then delete these files, and the theory then is that your computer will run faster and will have less problems. However, the questions arise – is all this cleaning really necessary? Are you given the option of manually removing the files that are listed as unnecessary and harmful?

Using a registry cleaner can be dangerous, according to some experts. It may remove files that are necessary for programs to load or perform properly. It can even cause a full system crash. They state that the best results may be the gain of a few kilobytes of disk space, and maybe a faster start up. However, with the storage and disk space on most computers that is a negligible result. Are these programs just ’snake oil, ‘ as one expert reviewer has stated?

It is possible that the free trials of cleaners give ambiguous information about registry errors, in hopes you will buy the program. Once installed and run, you may find that your computer is faster, and loads better. However, alternatively, you just may find that it has removed some necessary registry entries and you have lost or impaired functionality. Running the program will probably not speed up your computer noticeably, and you may even find it slower because it fragments the registry.

Most of the registry cleaners on the market claim that you will need to run the program periodically in order to keep your registry clean and free of errors. However, just because there are a few orphaned entries and files, they do not affect your computer’s speed or performance in a noticeable way. It may even mark some ‘good’ files as bad, and schedule them for removal.

Experts advise that if you feel the need to fix your registry, you should do it manually. If you don’t have the skill, then either leave it alone or hire an expert to do it for you. Do not rely on registry cleaners that may have received some good reviews, but have little in the way of real hard data to back up their claims.

Instead, to avoid problems, install only licensed programs to your system, and keep them up to date. Back up your critical data regularly. Be very cautious about installing and uninstalling trial or beta software programs. Always have a good anti-virus and malaware system running, and keep its files updated. Regularly defragment your system and delete temporary files. Just these simple stems will keep your system cleaner, and you won’t need to consider the dilemma of whether or not to use registry cleaners.

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2 Tricks To Shorten Your Waiting Time Of A Slow Computer

Sunday, June 13th, 2010

Having a slow computer can be very frustrating. If you like me, you are probably trying to do just about everything in order to speed up the process of what it is that you are doing. One of the best ways to do this is to get to your most commonly used applications as quickly as possible. Just think of how much time is wasted when you are looking all over your computer trying to find the applications that you use all of the time.

If you were to add up all of that time spent looking around your computer it would eventually accumulate to a fair bit by the end of the week. So what’s the alternative? In this article I’m going to show you two little tricks that you can do so that you will be able to find your applications much quicker.

Let’s start with the quick launch (the quick launch is the group of icons that are right beside your start button). If you don’t see a group of icons right beside your start menu, just right click on the taskbar and select Properties and then select Show Quick Launch. In order to do anything you are going to have to unlock the quick launch and to do that, just right click on the task bar and select Lock Taskbar. Now you should see dotted lines which will allow you to resize it. Now find the top 3 applications that you frequently use by going through your All Programs list in the start menu and right click on their icons and select Copy. Now go to your desktop, right click and select Paste. You should now see a copy of that icon on your desktop – just drag it into the quick launch area and the icon should be in bottom right hand corner next to the start menu (you can delete the shortcut that you copied to your desktop now since you will not be needing it). Now when you start up your computer or just log on you don’t have to look all over the place those 3 programs – there right in front of you.

Now let’s work with the Start menu. If you click on your start menu you will notice that there is a faint horizontal line on the left hand side. Everything that is above this line is permanent unless you manually remove them and below this line are programs that you have most recently used. What you’re going to want to do here is to add 3-5 programs that you use regularly to the permanent (the top part) of the list. Just go to the All Programs on the start menu, right click on the program icon and select “Pin To Start Menu”. This will then put it on the permanent part of the start menu so that you can quickly get to them without having to search around your messy desktop.

Another thing that you can do is to spend some time cleaning up your desktop. Only keep icons for programs – everything else, like random files, you should either delete or place into folders so that they are completely organized and in order so when you go looking for them you know exactly where they are.

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