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RFCs & Standards Voice over IP

SIP SIMPLE – Instant Messaging with SIP

A look into Instant Messaging using SIP

Categories
RFCs & Standards Voice over IP

SIP Extensions – Path

In vanilla RFC3261 SIP, a UA can only send a REGISTER request to a SIP Registrar. It can’t go via any intermediary proxies. That’s obviously a bit of a problem, as we build out our network we might have a series of load balancers that send traffic to a pool of Registrars, but according to […]

Categories
RFCs & Standards Voice over IP

SIP REGISTER status & why it’s not what you think it is.

SIP Register status, expires and why it’s often misunderstood.