Callcentric vs Tango
A side-by-side look at Callcentric and Tango. For an in-depth review of either product, follow the links below.
Callcentric
Online Services
Callcentric is a voice over IP (VoIP) phone service provider that offers unlimited calling plans and the ability to use your existing phones. It allows you to get a phone number in the area code of your choice and make inexpensive domestic and international calls over the internet.
voipphonecallinginternet-calls
Tango
Social & Communications
Tango is a free and open source, cross-platform program for video calling and instant messaging using Voice over IP. It offers encryption, group conversations, file transfers, customizable user profiles, and other features.
video-callingmessagingencryptionopen-source
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