Loading...
Topic of the week!
Each week SIPsense shares some interesting  SIP content we think you might find interesting. Why not Subscribe for regular updates.

Why are subsequent requests routed differently from intial requests?

SIP makes a big deal differentiating initial requests from subsequent requests. Why? Read on to find out. Learn more about Contact headers and Route Sets!

Exercises are autogenerated by the SIPsense SIP Engine. Try clicking Skip a few times in this exercise to see an endless stream of questions.

Note: On smaller screens this imported exercise may not be formatted correctly
For the best experience try on a larger screen