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 ...

In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...

TDM trunks have long served to connect corporate PBXs to the public switched telephone network (PSTN). But with more companies moving to VoIP, SIP trunking has become an increasingly popular ...

We are becoming less and less dependent on mobile networks. You can get a data signal almost everywhere that you can get a mobile signal and most of us are around WiFi most of the time anyway.

They’re more cost-effective, flexible, and scalable, and they’re full of features that can help your business look and sound more professional. By 31 January 2027, traditional analogue/PSTN phone ...

In Part 1 of our SIP primer, I covered the SIP foundation layers starting from the message structure and ending with the SIP transactions. We saw how phone registrations and proxies could work using ...

Just what is SIP trunking? Let’s take it one part at a time. SIP refers to Session Initiation Protocol, the standard developed in the 1990s by the Internet Engineering Task Force that is used to set ...