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Faxing with VOIP

Last Updated: Jun 20, 2013 05:10PM EDT


Faxing over VOIP is not recommended as the VOIP codecs can alter the fax tones/signals and also latency on the network can affect the timing of the fax signals. Here's web page that describes the problem in more detail:

The Mainpine folks also have an excellent blog post on the problems with VOIP at

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