Evaluation of Some Voice Over IP Services Providers

This book provides brief survey of the some Voice Over IP (VOIP) providers, including the providers that offers free calls to some countries. Then, I will mention some websites that offer virtual phone numbers from around the world to receive activation codes and SMS confirmations online.

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The report consists from the following parts:

1. How does VOIP work?
2. Getting free phone number in US or Canada and other countries
3. Betamax (Dellmont sarl) VOIP Service Provider.
4. Some free websites that can be used to receive SMS online using numbers from some countries.
5. Best websites that offer SMS verification, sending SMS and renting number services.
6. Inphonex VOIP Provider.
7. eFax
8. VOIP Frequently asked equestions.