--- canonical: "https://www.softatlas.io/bird/products/voice" name: "Voice" provider: "Bird" category: "Productivity & Collaboration / Business Phone Systems / VoIP Platforms" review_count: 0 ai_powered: false website: "https://bird.com/en-us/products/voice" updated: "2026-07-28" --- # Voice By [Bird](/bird.md) The Voice API provides programmable voice capabilities including calls, IVR, recording, and TTS over PSTN and SIP. ## Features - Place and receive calls over REST or SIP - Compose declarative call flows in JSON - Record calls with optional transcription - Stream text-to-speech with sub-250ms latency - Provision virtual numbers in 100+ countries - Implement masked calls for privacy - Select least-cost carrier in real time per call - Receive per-call webhook events ## Built for DEVELOPERS, CUSTOMER_SUPPORT, OPERATIONS Source: https://www.softatlas.io/bird/products/voice