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    AI-Powered Voice Assistant & Call Intelligence

    Solving the missed-call problem with intelligent call handling, spam filtering, and visual voicemail transcription

    Zero missed-call revenue loss with AI-automated call triage and response
    Client
    Confidential — Consumer AI startup
    Industry
    AI / Consumer Technology
    Timeline
    4 months
    Technologies
    8+ tools

    The Challenge

    !

    Small businesses and sole traders lost leads every time they missed a call during busy hours

    !

    Spam callers wasted significant time that should be spent on genuine customer interactions

    !

    Existing voicemail was audio-only — users could not scan or search through call content efficiently

    !

    No warm, personalised greeting could be configured per caller category or time of day

    !

    Lack of call analytics meant businesses had no data on call volume, peak hours, or missed-call patterns

    Our Solution

    Built a mobile AI voice assistant that answers calls with configurable warm greetings when users are unavailable

    Implemented an active spam-detection layer using call pattern analysis and known-spam number databases

    Developed real-time speech-to-text transcription for all voicemails with searchable text in a visual inbox

    Created time-of-day and caller-category routing rules for personalised handling per business context

    Built a call analytics dashboard showing volume trends, spam intercept rates, and missed-call heatmaps

    Deployed audio recording storage with automatic retention management and user-controlled access controls

    Measurable Impact

    Missed calls captured

    100%

    AI assistant answers every call regardless of user availability

    Spam intercept rate

    94%

    Active spam detection filters unwanted callers before they reach the user

    Voicemail scan time

    10× faster

    Searchable text transcripts replace slow audio playback for review

    Lead recovery

    Measurable lift

    Businesses report recovering missed-call leads that previously went to competitors

    "Every missed call was a missed sale. Now our AI handles the call professionally, and I can read the transcript when I'm free. We've recovered real business from it."
    F
    Founder
    Consumer AI Platform (NDA)

    Technology stack

    React Native
    Node.js
    Python
    OpenAI Whisper
    Twilio
    PostgreSQL
    Redis
    AWS Lambda

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    AI-Powered Voice Assistant & Call Intelligence | Case Study | SystimaNX