sinch-elastic-sip-trunking
Sinch Elastic SIP Trunking API
Overview
The Sinch Elastic SIP Trunking (EST) API lets you programmatically provision SIP trunks and route voice traffic between customer infrastructure and the PSTN. The core workflow is: create a trunk, authorize it (ACL or credentials), attach endpoints, assign phone numbers.
Agent Instructions
Before generating code, ask the user these clarifying questions:
- Direction — Do you need inbound (receive calls from PSTN), outbound (send calls to PSTN), or both?
- Auth method for the trunk (if outbound or both) — ACL-based (static IPs) or Credential-based (digest auth / dynamic IPs)?
- Endpoint type (if inbound or both) — Static endpoint (fixed IP/port) or Registered endpoint (SIP UA registers dynamically)?
- Language — curl, Node.js SDK, Python, Java, .NET?
Only ask questions 2-3 when relevant to the user's direction. Wait for answers, then follow the matching workflow below.
Decision Tree
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