Twilio を置き換える無料・OSS・DL可能な選択肢
Self-hosted realtime WebRTC audio video server — End-to-end realtime stack for connecting humans and AI
↔ 代替: Twilio、Agora、Daily.co
Turn your Android phone into an SMS gateway — Send and receive SMS messages using your Android phone programmatically via a simple HTTP API
↔ 代替: Twilio
