An organization that provides voice over IP (VoIP) service and enables calling from SIP phones to plain-old-telephone (POTS) lines and vice versa. SIP is the universal protocol used for Internet ...

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 ...

The VoIP landscape has changed over the years, with many providers evolving into more than just the desk-phone VoIP we used to know. VoIP companies continue to add ways to entice consumers and small ...

The SIP Survey recently published its eighth-annual SIP and Cloud survey, and as I looked over the data I expected the results to demonstrate a decrease in provider problems -- my expectation being ...

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 ...

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You would think that with the growth of SIP trunk deployments, the providers would be better at implementation and support. It does not seem so. Editor's note: This ...