Cheat code
Security cheat sheet
- PSTN-capable auto-registration is toll fraud waiting.
- TLS locks signaling. SRTP locks audio.
- 8090 is gateway recording HTTP. Consent is not a port.
- This lab stores no customer data and places no live call.
Sources: RFC 3711, RFC 7866, CUCM 15 port usage.
Sources and go deeper
Opened 2026-10. A row marked confirm has no link, because that page was not verified.
- RFC. RFC 3711, SRTP last checked 2026-10
- RFC. RFC 3550, RTP last checked 2026-10
- RFC. RFC 7866, session recording protocol last checked 2026-10
- Protocol and ports. CUCM 15 TCP and UDP port usage last checked 2026-10
- Community. Cisco Community, Collaboration knowledge base last checked 2026-10
- Wikipedia. Real-time Transport Protocol (Wikipedia) last checked 2026-10