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VoIP Sound Troubleshooting

Updated on May 3, 2011

Problems with VoIP Sound

VoIP sound quality is a crucial factor which will decide whether or not a business chooses to stick with it. Because of its novelty and due to the fact that it's under scrutiny, a VoIP line cannot get away with problems which might even be ignored on a regular phone line. Mean Opinion Scores (MOS) can help with detecting problems only up to a point.

When VoIP was new, many users found the quality to be poorer than regular phone lines. Of course, that was in the days of dial up when bandwidth was at a premium. These days however, things have changed drastically. The environment is such that the meager bandwidth requirements of VoIP are easily met and advances in VoIP systems have made quality issues even less of a problem.

However, there are times when you might want to improve your VoIP sound quality and in this article, we look at a few things which may be going wrong and how to correct them.

VoIP Sound Quality
VoIP Sound Quality

Probable Causes

It's a known fact that the usage of the Internet expands to fill the amount of bandwidth available. So even though we're in an age when we have speeds reaching up to dozens of Mbps, the applications we use are equally demanding. Streaming videos from sources like Netflix and downloading large files can eat up your available bandwidth and leave you with scarcely anything left.

The overwhelmingly large number of VoIP problems have to do with bandwidth related issues. Either on the side of the caller, or the receiver. There's no use in having great systems if the person at the other end has their own bandwidth choked. Home users need to do little more than make sure that all other Internet hogging applications are closed. Not just on their own systems, but any other device that may be sharing the same connection even over wifi. This can also include mobile devices in range.

Businesses however can't afford to take chances. They need a guarantee that a channel will always have space for their VoIP applications. They make use of Virtual LANs or VLANs which create a dedicated channel for VoIP with guaranteed bandwidth. Even this needs to be revised regularly to ensure that growing VoIP needs have enough space.

Other reasons for poor voice quality can include misconfiguration of the network apparatus. Administrators can run a trace to find out where the plug lies. They can also monitor important parameters such as packet loss and average round trip times to analyze any points of trouble.

To avoid doing this by yourself, you can use business hosted VoIP services. They will also provide you with hosted HD voice services which will deliver a much better quality of sound than regular phone systems. Call an ITSP today to find out more.


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