Hermes Caller

Hermes Caller is an Android Twilio dialer with dual-channel call recording and Deepgram Nova-3 transcription. The app and Python calling service run with your own Twilio account.

Hermes Caller’s native Android dialer entering and clearing sample digits on a Pixel phone
Device artwork · Android Open Source Project · CC BY 2.5

Android calling

Place calls through Twilio’s native Voice SDK, using a short-lived token from your own Python server.

Recordings and transcripts

Store dual-channel recordings when enabled, then run the opt-in multilingual Deepgram workflow. Transcript files can feed the documented coaching handoff.

Your Twilio account

The setup guide covers caller ID, Voice API keys, TwiML, signed callbacks and the Android app’s private server configuration.