VoIP Ranking Methodology
VoIP Top100
VoIP provider ranking methodology:
Each VoIP provider is evaluated according to their international calling rates, and obviously we can only rank VoIP providers already included in our database. As of early September 2005 we are in a position to compare 160 VoIP providers with all their current international call rates. This database will grow on a daily basis to include new service providers.
Methodology:
-
Individual country ranking:
First the individual country ranking of each VoIP provider to each destination in the world is determined. Currently the database includes 565 destinations with over 100000 individual call rates (September 2005). Every VoIP provider (unless they are resellers) have their own list of destinations. Their rate schedules are formatted to suite our records.
-
Summary of country rankings
The individual country ranking of each provider to each destination is summarized and then divided by the total number of destinations listed for each VoIP provider in the database.
The result is a figure between 1 and the number of VoIP providers being calculated.
Theorectically if a provider had a summarized result of 1.0, it would mean that this particular VoIP provider ranks number 1 (cheapest) to each destination in the world. A provider with a result of 50 would indicate that on average this VoIP provider ranks 50th to each destination in the world.
-
Ranking of results
The VoIP providers are then ranked according to their summarized results. The lower the figure the cheaper the provider.
The VoIP Provider - Top100 Ranking is published monthly at the beginning of each month.
Next release of the VoIP Top100
In the next release of our VoIP Provider - Top 100 Ranking we will include a weighting of each destination. Currently each destination carries the same weight, but we do recognize that rates to the US, Germany, UK or Japan should be rated higher than Vanatu, Tonga, East Timor or other tiny destinations with very low voice traffic volumes. Some VoIP providers have excellent rates to unknown destinations and currently this will boost their ranking. This does not give a true reflection of their overall pricng structure.
Please feel free to send any comments or recommendations, be it positive or negative.






















