Studio has regions

Pick the region that matches the domain.

Sources and go deeper

Technical requirements PDF. vendor. last checked 2026-10. Fetched for this lab in October 2026. Re-read before you buy hardware or open a firewall.
IANA service names and port numbers. ports. last checked 2026-10.
RFC 3261, SIP: Session Initiation Protocol. rfc. last checked 2026-10.
RFC 1035, domain names. rfc. last checked 2026-10.
RFC 2782, DNS SRV. rfc. last checked 2026-10.
RFC 9293, Transmission Control Protocol. rfc. last checked 2026-10.
RFC 768, User Datagram Protocol. rfc. last checked 2026-10.
confirm. Studio signaling ports in the PDF are easy to misread as universal VCC trunk ports. Confirm which SBC your domain uses. last checked 2026-10.