In the early days of VoIP, one and all were discussion about how the excellence was inferior than that of a PSTN call with recurrent drop offs and delays. At that time, such stories were almost certainly true as the world was still impending to grips with high Internet speeds and VoIP technology in general. However as anyone who’s actually used VoIP these days knows, VoIP call quality has not only improved dramatically, it’s also out of date that available on normal phone lines. Internet speed test is very vital for all the internet users. It’s very important to have quality internet service if you want to bring efficiency in your work.
Technology such as HD voice for example has revolutionized the prospect for businesses and VoIP continues to spread. But what speeds do we need to get excellent VoIP quality at a minimum? The answer very much depends on what we call “good quality.” Regular users expect good quality to be exactly that which is provided by the telephone itself. With the Internet being what it is today, that’s the very least you can expect. By VoIP principles, the old handset voice worth is pretty poor. Usual telephone lines encode voice signals at just 8 KHz which sacrifices some of the advanced and lower frequencies to achieve good throughput. That is why you can easily perplex certain letters such as “p” and “b” for example. VoIP however, has the capability to encode at many levels. Depending on the obtainable bandwidth, a higher or a lower codec can be used. Better quality uses more bandwidth. Some programs such as Skype become aware of the amount of bandwidth obtainable and choose the codec accordingly. This allows almost anyone to use VoIP efficiently. Ptcl speed test is fine example of quality internet service. I think that’s the reason that thousands of people using Ptcl internet in Pakistan.
To get the bandwidth necessary for a telephone call like superiority, we need to shape out how much is desirable to carry the corresponding of a 4 kHz voice programming. It turns out that this is a mere 64 kbps. Except in the most prehistoric parts of the Internet space, everyone has considerably higher bandwidth than this. So at face value, VoIP calls which are at least as good as PSTN calls are available to just about everyone. To use better HD voice with VoIP, we encode it at 16 kHz or more. In which case, we need standby bandwidth of approximately 128 kHz which again in the age of Mbps speeds is very small. Indeed, the warning factor is usually the fact that not all the participants in a VoIP call are using an IP phone. If they did, everyone would be able to speak in pure HD voice all the time. Dsl internet speed in another fine example of quality internet service. Whenever we check internet speed of Dsl, w will see that Dsl speed test will always be high almost every time.