Call handling, transcription, and voice cloning improvements

Call Handling

• Reduced queue time during warm transfers for faster agent handoffs - Improved voicemail tone detection for higher accuracy in leaving messages - Fixed transcription repetition issues while using Babel language model

Editor & Logic

• Fixed issue where pressing Escape while editing the Custom Code Node would prevent changes from saving

Access & Plans

• Voice cloning is now available for all users to try on the Start plan