07 Aug 10 VoIP and how it works
VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.
The Internet Protocol (IP) was originally designed for data networking. The success of IP in becoming a world standard for data networking has led to its adaptation to voice networking.
Some background history:
Although VoIP has been creating quite a stir in the press recently, it’s actually not a new idea at all. VoIP has been around in one form or another since 1973 when it began as an experiment by the US Department of Defense.
Why VoIP is better ?
The number one reason to switch to VoIP technology for telephone service is cost reduction. VoIP has become popular largely because of the cost advantages to consumers over traditional telephone networks. VoIP slashes your monthly phone bill by a whopping fifty percent. Let’s put some light over these claims.
It offers cheaper international long distance rates which are generally one-tenth of what is charged by traditional phone companies. Its portability makes it a very good option and one could avoid expensive hotel phone charges and cell phone roaming charges. What one requires is just a high speed connection where one could plug the adapter into and people could reach you at your local number irrespective of your location.
Most Internet connections are charged using a flat monthly fee structure. Using the Internet connection for both data traffic and voice calls can allow consumers to get rid of one monthly payment. In addition, VoIP plans do not charge a per-minute fee for long distance.
By making VoIP calls using internet enabled cell phones one could avoid wireless roaming fees and long distance rates which generally touch north. Most of the times in-network calls to other VoIP service subscribers are free even if the calling parties are located in different parts of the world.
How does it work?
Just to confuse people, there are many kinds of VoIP. Using voice chat in MSN , G Talk or Yahoo messenger could be regarded as VoIP, so could the highly publicised Skype; but these are all proprietary systems. To talk to someone using MSN, the person at the other end also needs MSN. The same applies to Yahoo and, to a great extent, to Skype. They use their own special system that isn’t open and won’t connect to other systems easily.
True VoIP should really be based on the SIP system which is the recognized standard. Any SIP compatible device can talk to any other; you don’t even use a PC. Any SIP telephone can call another right over the internet, you don’t need any additional equipment or even a phone provider. Just plug your SIP phone into the internet connection, configure it and then dial the other person right over the internet.
In all VoIP systems, your voice is converted into packets of data, like little files, and then transmitted to the recipient over the internet and decoded back into your voice at the other end. To make it quicker, these packets are compressed before transmission, a bit like zipping a file.
Actual Cost of VoIP:
The promise of free international calls whenever you want them probably sounds a little too good to be true – there must be a catch, right? Well, yes and no. Provided you only wish to use VoIP to communicate with other VoIP users, everything is very straightforward. If however you want to be able to use VoIP to make and receive calls to and from people who don’t have VoIP, you’ll need to subscribe to a gateway service that provides a bridge between VoIP and the conventional phone networks.
Getting Started with VoIP :
Getting started with VoIP could hardly be simpler. Assuming you already have the two most important ingredients (a Windows or Mac computer and a broadband Internet connection), all you need to get started is the following:
* Some free phone or messaging software.
* A microphone.
* Headphones or speakers (headphones are best because they won’t cause as much feedback).
An alternative to a microphone and headphones is an integrated headset, as this will leave your hands free.
When it comes to choosing which software to use, it’s worth considering whom you plan to call, since most VoIP software is proprietary. Check with any friends or relatives who already use VoIP and see what they’re using. If you plan to use VoIP to call people who use different software, you may need to install more than one program!
Examples of VoIP software you might choose to use are MSN Messenger, Yahoo Messenger, SkyPe and ICQ, all of which are available as free downloads. All of these are designed to be beginner-friendly, so follow the installation instructions and you’ll be ready to go in a matter of minutes.
So what’s the catch?
Obviously nothing is ever as simple as it sounds. New technologies aren’t perfect and pricing often reflects this, if it wasn’t cheaper nobody would switch.
The main problem with VoIP applications is bandwidth contention. This complicated term isn’t as difficult as it sounds. You might have anything from a 512Kb broadband connection to 8Mb and beyond, dial-up isn’t suitable for VoIP. It doesn’t matter how big this connection is, it can still get busy.
VoIP phone call requires at least 100Kb or dedicated bandwidth and without this, you may find your phone calls less than satisfactory. To resolve this problem, there are now ranges of internet routers to use with your existing cable or DSL connection. These are VoIP aware and will dedicate the bandwidth to your phone call when you need it but free up all the bandwidth for other use when you’re not on the phone. Some VoIP service providers will supply a compatible router with your connection package, it’s essential.
Source: Programmer World
Tags: communications, IP, telephone, VoIP
10 Jul 10 How to Delete Friendster Account
For any reason, you intend to delete your Friendster account but at the same time you’re wondering how you can do that. It’s a little bit tricky to do that for the first time since Friendster placed their ‘delete account’ button at hard-to-be-seen place and I couldn’t find the instructions on that matter in their FAQ page either. Anyhow, you can refer below in how to furnish it :
1. Login to your Friendster account.
2. Click on “Settings” located on the top right corner of web page.
3. Scroll down to the bottom of the “Settings” page, and then click on “Cancel Account” link.
4. A new page will load. Scroll down to the middle of the page. At “Cancellation Form:” section, fill in the following fields details:
- Email address: Enter the email address you use to login to Friendster.
- Password: Enter the password you use to login to Friendster.
- Optional: Check and select or state the reason why you want to leave Friendster from the selection and options or text field given.
5. Check (tick) on the check box “Yes, I want to cancel my Friendster account” verification.
6. Click on “proceed” button and your Friendster account will be deleted.
Note that the deletion of Friendster profile or account is permanent and irreversible. You won’t be able to revert or retrieve back the account as the data is permanently deleted, so impossible for Friendster to reactivate or reinstate the profile.
Tags: Delete, Friendster, How To, Info, Remove, Tips & Tricks
10 Jul 10 21 Things You Should Never Buy New
If you’re looking to get the most value for your money, it would do your wallet good to check out secondhand options. Many used goods still have plenty of life left in them even years after the original purchase, and they’re usually resold at a fraction of the retail price, to boot. Here’s a list of 21 things that make for a better deal when you buy them used.
1. DVDs and CDs
Used DVDs and CDs will play like new if they were well taken care of. Even if you wind up with a scratched disc and you don’t want to bother with a return, there are ways to remove the scratches and make the DVD or CD playable again.
2. Books
You can buy used books at significant discounts from online sellers and brick-and-mortar used book stores. The condition of the books may vary, but they usually range from good to like-new. And of course, check out your local library for free reading material.
3. Video Games
Kids get tired of video games rather quickly. You can easily find used video games from online sellers at sites like Amazon and eBay a few months after the release date. Most video game store outlets will feature a used game shelf, as well. And if you’re not the patient type, you can rent or borrow from a friend first to see if it’s worth the purchase.
4. Special Occasion and Holiday Clothing
Sometimes you’ll need to buy formal clothing for special occasions, such as weddings or prom. Most people will take good care of formal clothing but will only wear it once or twice. Their closet castouts are your savings: Thrift stores, yard sales, online sellers and even some dress shops offer fantastic buys on used formalwear.
5. Jewelry
Depreciation hits hard when you try to sell used jewelry, but as a buyer you can take advantage of the markdown to save a bundle. This is especially true for diamonds, which has ridiculously low resale value. Check out estate sales and reputable pawn shops to find great deals on unique pieces. Even if you decide to resell the jewelry later, the depreciation won’t hurt as much.
6. Ikea Furniture
Why bother assembling your own when you can pick it up for free (or nearly free) on Craigslist and Freecycle? Summer is the best time to hunt for Ikea furniture–that’s when college students are changing apartments and tossing out their goodies.
7. Games and Toys
How long do games and toys remain your child’s favorite before they’re left forgotten under the bed or in the closet? You can find used children’s toys in great condition at moving sales or on Craigslist, or you can ask your neighbors, friends, and family to trade used toys. Just make sure to give them a good wash before letting junior play.
8. Maternity and Baby Clothes
Compared to everyday outfits that you can wear any time, maternity clothes don’t get much wear outside the few months of pregnancy when they fit. The same goes for baby clothes that are quickly outgrown. You’ll save a small fortune by purchasing gently used maternity clothes and baby clothes at yard sales and thrift stores. Like children’s games and toys, friends and family may have baby or maternity clothing that they’ll be happy to let you take off their hands.
9. Musical Instruments
Purchasing new musical instruments for a beginner musician is rarely a good idea. (Are you ready to pay $60 an hour for piano lessons?) For your little dear who wants to learn to play an instrument, you should see how long his or her interest lasts by acquiring a rented or used instrument to practice with first. Unless you’re a professional musician or your junior prodigy is seriously committed to music, a brand new instrument may not be the best investment.
10. Pets
If you buy a kitty from a professional breeder or a pet store outlet, it can set you back anywhere from a few hundred dollars to several thousand dollars. On top of this, you’ll need to anticipate additional fees and vet bills, too. Instead, adopt a pre-owned pet from your local animal shelter and get a new family member, fees, and vaccines at a substantially lower cost.
11. Home Accent
Pieces Home decorating pieces and artwork are rarely handled on a day-to-day basis, so they’re generally still in good condition even after being resold multiple times. If you like the worn-out look of some decor pieces, you can be sure you didn’t pay extra for something that comes naturally with time. And don’t forget, for most of us, discovering a true gem at a garage sale is 90% of the fun!
12. Craft Supplies
If you’re into crafting, you probably have a variety of different supplies left over from prior projects. If you require some additional supplies for your upcoming project, then you can join a craft swap where you’ll find other crafty people to trade supplies with. If you have leftovers, be sure to donate them to your local schools.
13. Houses
You’re typically able to get better and more features for your dollar when you purchase an older home rather than building new. Older houses were often constructed on bigger corner lots, and you also get architectural variety in your neighborhood if the houses were built or remodeled in different eras.
14. Office Furniture
Good office furniture is built to withstand heavy use and handling. Really solid pieces will last a lifetime, long after they’re resold the first or second time. A great used desk or file cabinet will work as well as (or better than) a new one, but for a fraction of the cost. With the recession shutting down so many businesses, you can easily find lots of great office furniture deals.
15. Cars
You’ve probably heard this before: Cars depreciate the second you drive them off of the dealership’s lot. In buying a used car, you save money on both the initial cost and the insurance. It also helps to know a trusty mechanic who can check it over first. This way, you’ll be aware of any potential problems before you make the purchase.
16. Hand Tools
Simple tools with few moving parts, like hammers, hoes and wrenches, will keep for decades so long as they are well-made to begin with and are well-maintained. These are fairly easy to find at neighborhood yard or garage sales. If you don’t need to use hand tools very often, an even better deal is to rent a set of tools or borrow them from a friend.
17. Sports Equipment
Most people buy sports equipment planning to use it until it drops, but this rarely happens. So when sports equipment ends up on the resale market, they tend to still be in excellent condition. Look into buying used sporting gear through Craigslist and at yard sales or sports equipment stores.
18. Consumer Electronics
I know most folks like shiny new toys, but refurbished electronic goods are a much sweeter deal. Consumer electronics are returned to the manufacturer for different reasons, but generally, they’ll be inspected for damaged parts, fixed, tested, then resold at a lower price. Just make sure you get a good warranty along with your purchase.
19. Gardening Supplies
This is an easy way for you to save money, and all you need to do is be observant. Take a look outdoors and you’ll likely find such gardening supplies as mulch, wood, and even stones for free or vastly reduced prices. Used garden equipment and tools are also common goods at yard sales.
20. Timeshares
Buying timeshares isn’t for everyone, but if you decide that it suits your lifestyle, purchasing the property as a resale would be a better deal than buying it brand new: on average, you’ll save 67 percent on the price for a comparable new timeshare. If you’re new to timeshare ownership, give it a test run first by renting short term.
21. Recreational Items
It’s fairly easy to find high ticket recreational items like campers, boats, and jet skis being resold. Oftentimes, they’re barely used at all. As long as they’re in safe, working condition, they’ll make for a better value when purchased used than new.
Source : Yahoo!
