SIP
Direct Connect and the edges
ITSP trunks, your SBC, gateways, bandwidth, NAT, and the ports that belong only to Studio.
SIP and carriers ยท advanced ยท 12 min full read
Direct Connect in the requirements is a Layer-3 handoff. There is no Layer-2 requirement. The port is 10, 100, or 1000 full duplex, and failover uses BGP. Equinix Fabric edges named in the PDF this lab read are Chicago CH3, Washington DC10, London LD5, Amsterdam AM4, Frankfurt FR8, Sรฃo Paulo SP4, Tokyo TY11, and Sydney SY5.
- Order Layer 3 with BGP
- Date the Equinix edge list
Those city codes are a snapshot. A new PDF can add or retire an edge. Write the date next to the list before a circuit is ordered.
Confirm before you order. October 2026 snapshot.
Date an edge
Copy one metro code and write why you will re-check it.
- Open the current PDF
- Copy the code with a date
- Name BGP and full duplex
The order form has a date.
- Handoff? Layer 3.
- Failover? BGP.
- London? LD5 in that PDF.
- Is the list forever? No.
- 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.
- confirm. CH3, DC10, LD5, AM4, FR8, SP4, TY11, and SY5 are the Equinix Fabric edges in the technical requirements read in October 2026. last checked 2026-10.
Glossary. Domain: The VCC tenant. Skills, users, lists, and campaigns stay inside it. Planning your implementation
Sister technologies. CRM SDK. Bring-your-own CRM when no named adapter exists. APIs and SDKs
Config. Copy one metro code and write why you will re-check it.
Troubleshooting. The PDF was not opened, and Layer 2 is the wrong handoff. Correct the order.
Cross-platform bridge. A mapping to another PBX or contact center is a teaching bridge. It is not an import button.
Future hook. The guide's cloud endpoint stays unset. Confirm before relying on a dated catalog or a case-study number.