Sinch Voice API v2

Overview

The Sinch Voice API v2 provides project-scoped REST resources for creating, receiving, and controlling calls with SVAML v2 commands. Use it for PSTN and SIP calls, IVR, bridging, recording, batch calling, and for connecting AI voice agents through Voice Relay or raw WebSocket audio streams.

Version scope: Voice API v2 (public preview) only. This skill covers the /v2/projects/... API, SVAML v2 commands, and CloudEvent webhooks. Voice API v1 (/calling/v1, application key and secret, ICE/ACE/PIE callbacks) has a different surface; do not adapt the guidance below to v1. Load the sinch-voice-api skill for v1 instead. Preview contracts can change; confirm every wire detail against the linked docs in the current session.

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):