Voip disadvantages - security threats

Although Voice over IP (VoIP) has many advantages, the use of voip gateway may expose to serious threats. This 10 minute podcast explains some of these threats.

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Voice Over IP

What is voip and how it works..

VoIP: Voice Over Internet Protocol: Voip hows and whys

Voice Over IP: PC-To-Phone VoIP, Voip Softphone

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Making international calls local

Fully sustainable mobile advertising-supported business model that benefits both callers and advertisers. Free World Dialing with the ability to make free international and long distance calls from cell phones, landlines, computers or VoIP phones. Also watch the Rebtel video bellow for a better understanding.

Make cheap international calls from your mobile. Call global and pay local. It works only with mobiles that can access the internet.

Make free international calls using Rebtel's "smart call".

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Making Free International Phone Calls

Free international calls to 64 destinations- poketalk.com

20 Minutes Free International Calls Anywhere-Mobile or Landline.

30 minutes free landline international calls every day, to 38 destinations with Adphone (formerly Sgoope). The free minutes are possible because they earn money displaying visual ads during calls.

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