12.5. Conclusion

One of the dreams of VoIP was that it was going to make phone calls free. Over a decade later, we’re still paying for our phone calls. The technology has existed for some time, but the ease of use has not been there.

It costs nothing to register your ITAD and set up your system to handle ISNs. If every Asterisk system deployed had an ITAD, and people started publishing their ISNs on websites, vcards, and business cards, the weight of the Asterisk community would drive industry adoption.