What are the problems with VoIP and how serious are they?
The transfer of voice traffic over packet networks, and especially voice over IP, is rapidly gaining acceptance. This growth is predicted to continue in rapid leaps over then next three years.
However there was a bit of hesitation in the market when the growing pains were affecting the overall call qualities and service performance.
In the beginning the VoIP, process had many hiccups. That like the voice mail would not work correctly, the call quality was choppy, and the call reliability was less than perfect as calls could be lost.
Another problem was with the fact that in order to use VoIP you had to have your computer on and the person you were talking to have the same software running as you did.
In addition, there were issues with power outages. When a 911 call was put through, the emergency services had difficulties in locating the recipient in the case of an emergency.
Now however with the improved technology of the hybrids in VoIP and the standard computer-to-computer VoIP systems these problems are outdated.
The service providers of VoIP resolve most if not all of these problems. Here is the list of some of the problems that have occurred and the solutions that have taken affect to create a more stable and consistent phone service.
Call and Service quality
With fair concern, the quality of calls as the voice was transferred, compressed, decompressed and then delivered may have been less than perfect. Now however, the technology that tells us that the network latency effects how much time a voice packet spends in the network, jitter controls the regularity in which voice packets arrive.
Most of the time, a voice source will generate voice packets at a constant rate. The matching voice decompression algorithm determines what to expect with the incoming voice packets that arrive at a constant rate.
However, this packet-by-packet delay may cause a conflict in the network and may be different for each packet. The result is then that the packets that are sent in equal spacing from the left gateway arrive with irregular spacing at the right gateway.
Therefore, with this idea in mind we know that the receiving decompression algorithm requires fixed spacing between the packets, the typical solution is to implement a jitter buffer within the gateway.
This jitter buffer deliberately delays incoming packets, pacing them in order to present them to the decompression algorithm at fixed spacing. The jitter buffer will also fix any errors that are out-of-order, by looking at the sequence number in the RTP frames.
At the beginning, the VoIP services were directly a result of you needing to have your computer on, the software running, and the person you are communicating with needed to have the same.
Now, there is only a need for a broadband connection and either a VoIP phone, or the adapter and a regular phone.
When the power goes out, there is still the factor that the router will lose the power to it. So the solution is simple, either you or your VoIP provider will need to hook up a back up battery source. This usually lasts for 24 hours and will make it so you will not have to do any type of resetting when the power is reinstated.
With the emergency 911 call issues, most of the VoIP providers now have resolved this issue with providing 911 services specifically. The only real reason this issue was there, is that there were a few mobile Internet connections that were being used for VoIP, therefore the location was harder to track.
With the standard connection through DSL and cable, this was not an issue. The best way to know what your provider has done where this concern is involved, the best thing is to ask them
With better programming, the right equipment and have already gone through most of the growing pains as I have said the current VoIP services have little to no problems and is definitely an option that can save money on your regular monthly bill and all your long distance and international calling.