Intro Let’s immediately pick up where we left off in Part 1: TURN Server. The Allocate Request and Response I mentioned there is in fact part of the STUN protocol. Again, me liking to decode acronyms: Session Traversal Utilities for NAT. It’s defined in RFC5389 and is the protocol used by TURN and ICE. Allocations […]

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Intro Before I start discussing TURN, just want to set the scene here. I’ve decided to write a series of articles on Interactive Connectivity Establishment (ICE). Why a series you might ask? To be honest with you I never really liked very long technical articles and discussing ICE would definitely be one. Instead, I’ll divide […]

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Everyone is familiar with the basic SIP headers like CSeq and Call-ID (I’m not gonna mention From and To :)). Some might even know Remote-Party-ID or Contact headers. What I’ve noticed throughout the years though, is that not many are familiar with the Record-Route and Route SIP headers. Not sure why as they’re pretty useful […]

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