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

Policy gate sinch-shared-policy@5 (sha256:4864cf0fa8d6): The policy digest below is binding as written. Before implementation or live execution, read the full shared Sinch policy once per conversation — skip it if this exact ID/version/fingerprint is already loaded; read it if the version is newer or the fingerprint differs. This skill's canonical operation routes live in its Agent Instructions and Links sections.

Sinch policy digest (binding):