Update: We're in the last throes of winter break 2019, which means most Ars' home office phones can stay dormant for a few more days. As such, we've been resurfacing a few classics from the ...

Discover the differences between SIP vs VoIP and why those differences don’t really matter that much during the buying process. SIP vs VoIP is a common question, but it’s not going to help you during ...

Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, modifying and terminating real-time communications sessions between Internet Protocol (IP) devices. SIP ...

The maker of corporate telephone equipment recently began selling gear using Session Initiation Protocol (SIP), a standard supporting many popular Internet telephone, videophone and instant messaging ...

I'm back from Internet Telephony Expo and thought I'd recap the show and offer my observations. First, the show was very well attended, especially the first day. A picture, or in this case, a video, ...

Session initiation protocol (SIP) trunking allows any organization to upgrade its offline PBX to an internet-powered business phone system. Business leaders are using this technology to harness VoIP’s ...

The Session Initiation Protocol and voice over IP are two complementary, yet distinctive, technologies that have helped underpin internet communications. Both SIP and VoIP are core components in ...

In this chapter, we start putting into practice some of the SIP concepts learned so far. We will show some very simple programming examples that illustrate how SIP works. As was stated in previous ...

8.6 Programs and Practice 8.6.1 Structure of the Applications For the practices in this chapter – except for Example 1, which is not a full application – we will use a simple architecture. The SIP ...

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 ...