March 24 — March 30, 2025

Call Transcription Improvements

• • Migrated from Assembly AI to Deepgram for faster transcription service

• • Fixed connection delay issues with transcription service

• • Optimized partial transcription settings to provide real-time transcription during calls

• • Users can now view audio transcription immediately when call screening starts

Call Handling System

• • Redesigned call waiting response system for improved reliability

• • Fixed issue where callers remained connected to calls even after all other participants had left

• • Improved call screening system with AI

• • Enhanced call invite acceptance and decline handling

• • Fixed timeout errors when waiting for user responses

Audio Functionality

• • Fixed missing audio issues in call screening

• • Added microphone toggle in settings

• • Investigating active call audio issues

Server Reliability & Performance

• • Improved WebSocket endpoint with better ping/pong implementation

• • Enhanced client tracking using in-memory maps

• • Fixed concurrency issues with revoking user access to phone numbers

• • Implemented better server-client synchronization for connection type and app state changes

• • Added better disconnect reliability, resource cleanup, and reconnect functionality

• • Optimized call response handling with centralized listener system

Bug Fixes

• • Fixed contact syncing on the server to prevent duplicate contacts

• • Resolved stuck loading views after call screening

• • Fixed bug where agents remained in calls for too long after users disconnected

• • Addressed server memory leaks (ongoing investigation)

• • Fixed issues with user onboarding flow

Infrastructure

• • Began investigating server performance metrics using Clinic JS

• • Identified need for proper observability stack (considering Datadog)

• • Fixed issue with spam notification emails for low balance alerts