SIP session requests leverage the “session description protocol (SDP)” to define session characteristics such as media type, codec, and so on. While the IETF and SIPforum have standardized many of the ...

This is one in a series of articles from the ebook “The Real World of AoIP.” Radio World asked several manufacturers to identify the most important technical development or trend in the use of AoIP.

What's VoIP's Big Security Problem? SIP Session Initiation Protocol (SIP) is a must for voice over IP (VoIP) communication. But by itself, SIP is insecure and easily hacked. Here's what you need to ...

Last time I gave a high level overview of SIP and also took a look at SIP network element types. This time, I’ll be looking at SIP message and method types, and describing how SIP network elements ...

How To Set Up Free SIP Calling On Any Device Your email has been sent Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t.