I’m trying to get info from a supplier and they are insistent that a trunk is a 1 to 1 with a call. Now I am 99.999% sure he's wrong, but before I tell him so I wanted to make sure someone who knows ...

I am setting up an IP phone system for an office with 20 people. Can anyone recommend a reliable SIP trunk provider? We have a Grandstream UCM6208 PBX. Most calls made will be international. I am ...

There will be at least three external interested parties to the SIP trunk implementation -- IP PBX/UC vendor, session border controller (SBC) vendor, and SIP trunk provider. In addition, there will ...

The annual Infonetics Session Initiation Protocol (SIP) Trunking Scorecard ranks the top 10 SIP service providers in North America. While the bottom half of the rankings usually change slightly from ...