Play
Order the jobs this lab can defend. Signaling is not media. A token is not a license.
Put the jobs in study order
What correct means
The drill asks for registration and session setup before RTP, because RFC 3261 separates the registration function and the session from RTP in RFC 3550. A Zoom token hour is an API fact, not a call-flow step, so it stays off this list.
Simulation
Call-flow sketch
Click a node, type the digits the caller pressed, and read a SIP sketch. This page did not call Zoom, Talkdesk, Avaya, or any carrier. The sketch is not run on a network.
Choose a node, then show the sketch.
Sources and go deeper
Opened 2026-10. A row marked confirm has no link, because that page was not verified.
- RFC. RFC 3261, SIP last checked 2026-10
- Zoom. Zoom Contact Center product page last checked 2026-10
- Talkdesk. Talkdesk home last checked 2026-10
- Avaya. Avaya Aura platform last checked 2026-10
- Confirm. Release-specific steps for this page. confirm. last checked 2026-10