T11
Compliance and migration
From a PBX toward a trunk, without a fake cutover. 3 lessons. Each lesson cites the pages that were opened, and marks the rest confirm.
Compliance starts by not pasting a secret
T11-R31
Twilio's webhook docs name signing with shared keys, and the security page opened with the title Security.
Leaving a PBX without inventing a cutover
T11-R32
Asterisk's article calls it a software PBX, created in 1999 by Mark Spencer, with voicemail, conferencing, IVR, and automatic call distribut
Avaya, UCCE, and the pages that did not open
T11-R33
The UC Lab Free University opened on this organization's site. Its own pages study CUCM-shaped systems.
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
- Wikipedia. Session Initiation Protocol last checked 2026-10
- Wikipedia. Platform as a service, Communications platform as a service section last checked 2026-10
- Confirm. Release-specific menus for this track. confirm. Not opened as a single checklist. last checked 2026-10