Archive for the 'Computers' Category
Why You Should Invest in Compatible Ink Cartridges
If you’ve invested in your printer, you might as well make sure you get Compatible ink cartridges, to save on cost & to make sure you get quality prints. Printer owners are often surprised by how much ink cartridges, those that share the same brand as their printers, cost these days. When you keep purchasing branded or original ink cartridges, it will not be long until you realised you’ve spent an amount more than the price of the printer it self. So you end up buying the right kind of printer ink cartridge, remember to check the printer make and model. You can find this info on the printer’s user manual and on the ink cartridge that came with your printer.
No commentsLaser Toner Cartridges Some Facts You Should Know
You can’t just buy any printer cartridge as it might not work in your printer. The printer you own or plan to buy is either a laser printer or an inkjet printer. For the former, your replacement cartridges are laser toner cartridges; the for the latter, inkjet cartridges. Each uses a different kind of printer cartridge. Simply put, laser toner cartridges are containers for a dry substance that fuses on the surface of any kind of paper. Laser printers, because they can print thousands of pages fast, save both time and money via fewer cartridges bought over time. If you don’t need massive quantities of documents to print out regularly, as some offices do, then inkjet printers are fine for you. One way to cut down on costs when you replace laser toner cartridges and inkjet cartridges is to use remanufactured cartridges.
No commentsVoIP Networking Equipment
The major components of a VoIP network are very similar in functionality to that of a circuit-switched network. VoIP networks must perform all of the same tasks that the PSTN does, in addition to performing a gateway function to the existing public network. Although using different technology and approach, some of the same component concepts that make up the PSTN also create VoIP networks. There are three major pieces to a VoIP network.
- Media gateways
- Media gateway/signaling controllers
- IP network
Media Gateways
Media gateways are responsible for call origination, call detection, analog-to-digital conversion of voice, and creation of voice packets (CODEC functions). In addition, media gateways have optional features, such as voice (analog and/or digital) compression, echo cancellation, silence suppression, and statistics gathering.
The media gateway forms the interface that the voice content uses so that it can be transported over the IP network. Media gateways are the sources of bearer traffic. Typically, each conversation (call) is a single IP session transported by a Real-time Transport Protocol (RTP) that runs over UDP. Media gateways exist in several forms. For example, media gateways could be a dedicated telecommunication equipment chassis, or even generic PC running VoIP software. Their features and services can include some or all of the following.
Trunking gateways that interface between the telephone network and a VoIP network. Such gateways typically manage a large number of digital circuits.
Residential gateways that provide a traditional analog interface to a VoIP network. Examples of residential gateways include cable modem/cable set-top boxes, xDSL devices, and broadband wireless devices.
Access media gateways that provide a traditional analog or digital PBX interface to a VoIP network. Examples include small-scale (enterprise) VoIP gateways.
Business media gateways that provide a traditional digital PBX interface or an integrated soft PBX interface to a voip network.
Network access servers that can attach a modem to a telephone circuit and provide data access to the Internet.
Discreet IP telephones units.
Media Gateway Controllers
Media gateway controllers house the signaling and control services that coordinate the media gateway functions. Media gateway controllers could be considered similar to that of H.323 gatekeepers. The media gateway controller has the responsibility for some or all of the call signaling coordination, phone number translations, host lookup, resource management, and signaling gateway services to the PSTN (SS7 gateway). The amount of functionality is based on the particular VoIP enabling products used.
In a scalable VoIP network, you can breakup the role of a controller into signaling gateway controller and media gateway controller. For calls that originate and terminate within the domain of the VoIP network, only a media gateway controller might be needed to complete calls. However, a VoIP network is frequently connected to the public network. You could use a signaling gateway controller to directly connect to the SS7 network, while also interfacing to the VoIP network elements. This signaling controller would be dedicated to the message translation and signaling needed to bridge the PSTN to the VoIP network.
The services of these devices are defined by the protocols and software they are running. There are several protocols and implementations that any number of vendors could deploy. Knowing the details of how the devices use their suite of protocols is important to designing the IP backbone that is to service the VoIP elements.
IP Network
You can view the VoIP network as one logical switch. However, this logical switch is a distributed system, rather than that of a single switch entity; the IP backbone provides the connectivity among the distributed elements. Depending on the VoIP protocols used, this system as a whole is sometimes referred to as a softswitch architecture.
The IP infrastructure must ensure smooth delivery of the voice and signaling packets to the voip elements. Due to their dissimilarities, the IP network must treat voice and data traffic differently. If an IP network is to carry both voice and data traffic, it must be able to prioritize the different traffic types.
There are several correlations to the VoIP and circuit-switching components, however there are many differences. One is in the transport of the resulting voice traffic. Circuit-switching telecommunications can be best classified as a TDM network that dedicates channels, reserving bandwidth as it is needed out of the trunk links interconnecting the switches. For example, a video phones conversation reserves a single DS-0 channel, and that end-to-end connection is used only for the single conversation.
IP networks are quite different from the circuit-switch infrastructure in that it is a packet-network, and it is based on the idea of statistical availability. Class of service (CoS) ensures that packets of a specific application are given priority. This prioritization is required for real-time applications to ensure that the voice service is unaffected by other traffic flows.
No commentsInternet Conferencing With Video Phones
Conferencing through the Internet
Internet phone conferencing is becoming more and more commonplace and more popular as awareness of VoIP and the services that it makes available increase. Internet conferencing allows people in a variety of locations to communicate with one another through the Internet, real-time. This can be in the form of text Instant Messages in the same chat room, voice conferencing or video telephone conferencing. Large companies have held phone conferences for years and paid an arm and a leg for them. These days everyone is saving money through Internet phone conferencing instead.
Internet conferencing at a low price
For businesses and individuals, Internet phone conferencing provides a cheap alternative to traditional teleconferencing through the phone line. If all members of an Internet phone conference are on they same system or using the same VoIP service provider, crystal clear Internet conferences can take place with absolutely no cost and without hassle.
Save time and money with Internet Conferencing
Conferencing, in general, saves a lot of time and resources. This is because information only needs to be dispersed one time, instead of in a relay of email messages or phone calls. Conferencing saves times and it saves money so it really is a practical option when you are considering ways to communicate with a large number of people in your organization at one time.
Internet phone conferencing equipment
If you are considering using voip to conduct conference calls, you must ensure that all participants have all of the correct equipment to make the call voip go smoothly. It makes sense to send out a checklist of some sort to remind people and to show them how to prepare for the conference call. This will eliminate communication problems and information being lost by certain parties during conversations where important issues will be discussed.
Prepare for Internet phone conferences
If you have taken on the task of promoting technology in your company and warming people up to the idea of using the latest technology on an every day basis then you must work hard to present things well. In all honesty, the only way that clients and executives will be sold on using Internet phone conferencing is if calls run smoothly and equipment functions correctly. You can completely avoid and eliminate unnecessary problems by ensuring that anyone that will be involved in your conference calls has all of the necessary equipment. You do not want people entering the conference call, saying “testing, testing, 123″; very unprofessional!
Instant Messenger Conferencing
All of the major VoIP companies offer some type of conferencing options. In addition to this, Instant Messenger systems also offer video conferencing. It is a good idea to ensure that everyone that you want to talk with is using a broadband Internet connection so that the flow of the conference call is not interrupted by a bad connection. All participants must be able to hear what is being said clearly and also heard by all parties. If you decide to use an Instant Messenger conference service be sure to use the voice option so as to make the conference smooth and easy. Almost every major Instant Messenger company offers a voice to voice option.
Review Of Voip Routers
Voip sends your phone call through the Internet
A Voip router is a very small device that is used by the majority of Voip users to make calls over the Internet. One of the main differences between traditional telephones and Voip is that traditional phone signals are analogue and are sent physically through wires. Voice over IP sends a digital signal and sends it as packet data through the Internet. Therefore, for a person to continue to use the same phone that they have always used for voice over IP calls, they need a device to convert their analogue signal to a digital signal. This is what the Voip router is designed to do.
Voip technology is advancing rapidly
Digital phones allow Voip users to plug directly into their Internet connection or their computer to make telephone calls, thus eliminating the need for a router. Furthermore, it will only be a matter of time before our homes are fully networked for Internet access in every room, thus making IP calls easier and the delivery of other services that will soon be provided through the Internet.
Make your move to Voip as soon as possible
Voip is the telephony of the future. This is indicated by how the large traditional phone companies have all converted over to this technology. What you can expect with a switch to Voip is much lower telephone bills and the closest communication with long-distance family members and loved ones than you have ever known. When they say that the world is getting smaller, it can now truly be seen.
Voip is easy
Although many people fear new technologies or are slow to convert over to a new way of doing things because they are so comfortable with the old, IP calls is something that you should switch over to without hesitation. Of course, the voice over IP company that you choose to work with is your decision. Just understand that any switch to Voip is better than not switching. For those that hate new devices and new gadgets, a Voip router makes everything so simple and easy to use. Basically, a voice over IP router will have a socket for you to plug your phone into and another socket for you to plug your internet connection in to. Once you plug in those two things, you will never have to think about your VoIP router again. Now, that is simplicity!
Jim Francisto
No commentsSatellite Tv For Your Pc
Twenty years ago, every one was shouting that the home computer revolution
would save twenty man hours per week for every person. Computers were going to bring greater wealth to each family and improve
the family unit by cutting down the workweek. The only reason I remember this false declaration is because I have been patiently waiting for this to happen
and guess what? It hasn’t.
Nope. I’m Just getting older and busier with the gizmo’s and gadgets that are being created each day, in fact , it’s overwhelming! I can’t hardly keep
up anymore. I get addicted to CNET reviews, blog feeds on coming technologies and learning the in’s and out’s of latest technological advances.
I must say though, with all the busyness and the buzz, I am having a lot more fun. Every now and then you find a real Jewel, a diamond in the rough, something
you know is going to explode and you get to be one of the first to drop the jaws of the people in the circles you run with.
My latest experience with this was with a product called DTV4PC at Television4pc.com. As a techy, whenever I come across an acronym I’m unfamiliar with,
it immediately spikes my interest and the Hunt is on!
As it would turn out, DTV4PC didn’t cut 20 hrs off my work week but it did cut my cost of living. At home DTV4PC is saving me almost a $1000 a year. No joke… a thousand dollars a year, just think about how much you pay in cable or satellite bills every year. My savings continue by using this product in my job related travels as well.
So, what is DTV4PC? DTV4PC at Television4pc.com is a product that was developed to deliver 1000’s of television channels to your
personal PC through just an internet connection and a simple software installation that is instantly downloadable.
Sounds expensive doesn’t it?
Believe it or not, at $29.99 DTV4PC most likely will be the cheapest television bill you have seen in a long time. Also, the genuine folks at
DTV4PC don’t bill you monthly, they bill you ONCE! That’s right, you heard it correctly, just one time.
Now, before you whip out the calculator to figure what you will save each month or year compared to your current monthly cable and or satellite package, let me
tell you where else you can save.
The amazing thing about DTV4PC is that it is PC based all you need is an internet connection, so wherever your laptop goes so does your programming. My mobile
cell card allows me to have an internet connection wherever I go, but I can also jump on wirless hotspots as well.
With all the traveling I do, it’s nice to have access to just about any programming I want straight from my mobile computer. It sure beats those expensive hotel movies.
Also, when at home I can catch up with my favorite television episodes during my 50 mile morning and evening bus commute to and from work.
This allows me to spend more time with the family at home without fretting about what’s happening on with LOST or HERO’s, two of my favorite television programs.
So it looks like the old prophecy but just a little off. Technology isn’t saving me twenty hours off my fourty hour work week, but it is saving me time and money so
that the family and I can do more together like go on vacation once in awhile. Plus, it has allowed me to keep up on my dose of weekly entertainment without sacrificing
the important things in life when I get home (the wife and kids). Hats off DTV4PC for creating a superior product and making it available to all of us at an unbelievable price. You owe it to yourself, to check it out at Television4pc.com!
http://www.squidoo.com/satellite-tv-for-pc–
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