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 ...

This tutorial guides you through the design flow using Xilinx Vivado software to create a simple digital circuit using Vivado IP Integrator (IPI). A typical design flow consists of creating a Vivado ...

Barrett Lyon has created a don't miss resource that shows you how to configure P2P SIP URI (Uniform Resource Identifier) dialing on your Asterisk-based PBX. "There are thousands of people that operate ...

In the last newsletter we mentioned that the voice-over-IP sessions from Comnet 2003 are now available for general on-demand consumption. This time we’ll take a more detailed look at the abstracts for ...

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 ...