CoreCall

CoreCall is a bring-your-own-account dialer for developers. Connect your own Twilio or Telnyx account and get a full-featured softphone: voice calls, SMS conversations, and optional AI-powered live subtitles and interpretation via your own self-hosted AI server. BYOA — your keys, your bill, your data: • Paste your Twilio Account SID + Auth Token (or API key). CoreCall auto-provisions the TwiML app, serverless function, and API key in YOUR account. • Or use a Telnyx API key — outbound voice profile, credential connection and SIP credential are set up automatically. • Credentials are stored only in the device Keychain and never leave your device. Features: • Voice calls over Twilio or Telnyx WebRTC with CallKit integration • Dual-provider SMS conversations • DTMF keypad, mute, speaker • Optional AI Call Assistant (requires your self-hosted CoreCall server plus your own OpenAI/Deepgram keys): live word-by-word subtitles, consecutive interpretation, AI-operated calls with human takeover • Demo Mode — explore every screen without any account • English and Simplified Chinese localization CoreCall has no backend of its own: the app talks only to Twilio, Telnyx, and any AI server you configure yourself. No analytics. No ads.