The more dependent you are upon SIP trunks, the more diversity you'd better welcome into your configuration. In SIP Trunks: A Call To the Wild, I mentioned I would get with Chris Thompson, Senior ...
SIP trunking by itself is just a technology, but changing the entire telecom architecture so that it is centralized and VoIP/SIP end-to-end, is a big change. Google "SIP Trunking Calculator" and you ...
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