sipgate REST API Client

Official client library for the sipgate REST API v2. Current stable version 5.30.1. Maintained actively by sipgate. Key differentiators: native Promise-based API with built-in error handling for non-2xx responses (since 5.0.0, breaking change), configurable response interceptor, and support for legacy error handling opt-out. Covers all sipgate API endpoints (users, calls, SMS, contacts, etc.) with automatic authentication via API token. No external HTTP dependencies.