In the VoIP Speed Test — How Many VoIP Phones Can Your Internet Connection Support? article. Within the “VoIP Speed Test: How To Do The Math” section you state:
Divide your result from step 1 by 445. This will tell you the recommended number of phone lines your connection can support.
Where is the 445 number derived from?
It’s a conservative approximation of the amount of bandwidth required for a clear, stable, and high-quality call while also taking into account other internet activity that may be occurring at the same time. Please note that it’s only an approximation, however.
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