This is a brief paper that describes how sending external email to an account automatically maps things like a graphic if a person's personal email address maps to it. We tested this and it does work, but Facebook does add a little icon saying the sender isn't verified. However, the average user will probably overlook this.
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This is a short whitepaper on VOIP hacking. It more or less just goes over setting up Asterisk and using VOIP.
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