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How to change an extension on VoIP

Updated on October 28, 2010

Extensions in VoIP

VoIP extensions have two meanings. The one we're going to talk about relates to the assignment of a short number which acts as a kind of "speed dial" to your colleagues or those whom you dial frequently. Extensions can have various scopes and can be specific to you or company wide in nature. The other kind of extension relates to add ons for your VoIP system which perform various tasks. We'll look at the latter type of extensions in a later article.

Extensions are an important part of a VoIP system. They serve many useful functions including letting the company set a few key extensions for important services which are standardized across all branches. Depending on the VoIP system, it can be configured in such a way that irrespective of the actual telephone number across branches, the extension remains the same. This maintains a consistent experience and reduces the likelihood of people forgetting it.

Of course, extensions can also be assigned to people within the organization. These extensions can follow the user around the office even when their instruments and rooms change - once again allowing consistency to be maintained. Of course, inter office calls are free just like a regular system with the difference that users will be able talk to each other using VoIP with HD voice.

Changing Extensions

One of the advantages of VoIP is that it behaves just like a regular Internet application - which in fact it is. This means that unlike PSTN phone systems which have an arduous configuration procedure requiring manuals and the like, VoIP systems typically have a simple GUI configuration screen which brings immense usability. This might not matter so much to those who know how to operate an old system and have been working with it for a long time, but for those new to it, it can be an immense help to realize that you need not spend time figuring out esoteric procedures.

Also, the knowledge that the configuration is easy to change allows people to experiment with it and use all the various features which brings you even more value for money.

So depending on your VoIP provider, you'll need to simply log in to your VoIP administration screen and change your extension preferences. Hosted PBX services generally allow great flexibility in their extensions configuration and you'll need to poke around to figure out what works best for you. With a bit of luck, it'll be as easy as clicking a few buttons here and there and you're ready to go!


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