Overview of Some Voice Over IP Calls and SMS Verifications Services Providers by Dr. Hidaia Mahmood Alassouli
Requirements: .ePUB, .PDF reader, 3.5 MB
Overview: 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.
Genre: Non-Fiction > Tech & Devices
Download Instructions:
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