EchoMi: Your Personal AI Call Assistant

Never miss an important call again. Let your AI assistant handle it.

🌟 The Problem

What happens when you're busy, in a meeting or your phone is on silent and someone urgently needs to reach you? What about a delivery guy who's lost, or an unknown number that might be important?

You're forced to choose: interrupt your focus or risk missing something critical.

✨ Our Solution

EchoMi is an intelligent Android assistant that screens and answers calls on your behalf. It doesn't just block spam - it interacts with callers, understands their intent and takes smart actions, ensuring you only get alerted for what truly matters.

📱 For You (The User) Get "break-through" alerts for emergencies Approve/Decline OTP requests from the app Receive summaries from unknown callers Read full transcripts of AI-handled calls Stop being interrupted by non-urgent calls

🤖 For The Caller (The AI) Guide lost delivery drivers to your location Securely verify and provide OTPs Understand the caller's intent and urgency Politely get context from unknown numbers Provide a helpful experience, not a dumb voicemail

🚀 Key Features: Real-World Scenarios

🚨 The "Break-Through" Emergency Alert

• Scenario: Your phone is on silent, but a family member has an emergency.
• EchoMi's Action: The AI detects the caller's urgency. It immediately overrides your silent mode, raises the volume, and plays a loud, continuous alert sound. This alert won't stop until you personally open the EchoMi app, guaranteeing you see what's happening.

📦 Smart Delivery & OTP Automation

• Scenario: A delivery driver calls for an OTP, but you're in a meeting.
• EchoMi's Action: The AI takes the call.
  1. It asks the driver for a Tracking ID.
  2. The app securely scans your recent SMS messages for that specific ID.
  3. If a match is found: The AI provides the correct OTP to the driver. Your parcel is delivered.
  4. If no match is found (or no ID given): The AI sends a push notification to you with a simple "Approve" or "Decline" prompt. Only if you tap "Approve" will the AI share the OTP.

🗺️ AI Location Guide for Deliveries

• Scenario: A delivery driver is lost and can't find your address.
• EchoMi's Action: Instead of bothering you, the AI assistant accesses your saved location (via Google Maps integration) and provides clear, simple directions to the driver, guiding them directly to your doorstep.

📝 Unknown Caller Summaries

• Scenario: You miss a call from an unknown number. Is it a client? A scam? A wrong number?
• EchoMi's Action: The AI answers, politely talks to the person, and determines why they are calling. After the call, you get a concise summary in your call log (e.g., "John from XYZ Corp called about your job application"). You can then decide whether to call back—no guesswork needed.

📜 Full Call Transcripts

For every single call the AI handles, a full, word-for-word transcript is securely saved in the app. You can review the entire conversation at any time.

🛡️ Privacy & Security First

This power requires trust. EchoMi is built with privacy at its core.

🚫 Selective Handling EchoMi *only* interacts with calls the AI attends. Your personal calls remain 100% private.

🔐 Secure OTP Flow OTPs are *never* shared without Tracking ID verification or your explicit in-app approval.

🔒 Permission Control The app only accesses SMS/Location when *actively handling* an AI-assisted call for a specific task.

📄 Private Transcripts All call summaries and transcripts are stored securely on your device for your eyes only.

🛠️ Tech Stack

Kotlin

Android SDK

Node.js

Firebase (FCM)

MongoDB

Twilio

Deepgram

Google Maps

OpenAI

Python

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📱 System Architecture

┌─────────────────┐      ┌─────────────────┐      ┌─────────────────┐
│                 │      │                 │      │                 │
│  EchoMi Android │◄────►│  Firebase (FCM) │◄────►│  EchoMi Backend │
│      App        │      │ (Notifications) │      │    (Node.js)    │
│ (Kotlin/XML)    │      │                 │      │                 │
└────────┬────────┘      └─────────────────┘      └────────┬────────┘
  (Fetches SMS)                                  (Handles Call/AI Logic)
(Fetches Location)                                         │
         └─────────────────────────────────────────────────┘
                                                           │
                                        ┌──────────────────┬──────────────────┐
                                        │                  │                  │
                                        ▼                  ▼                  ▼
                              ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
                              │                 │ │                 │ │                 │
                              │  Twilio Voice   │ │  Deepgram STT   │ │     AI Model    │
                              │  (Call Gateway) │ │ (Transcription) │ │   (Bot/Logic)   │
                              └─────────────────┘ └─────────────────┘ └─────────────────┘

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⚙️ Implementation Status

Feature	Status	Notes
User Authentication	✅ Complete	Google OAuth via Firebase
AI Call Answering	✅ Complete	Twilio + Deepgram stream working
Emergency "Break-Through"	✅ Complete	Overrides silent mode and plays alert
Smart OTP Flow	✅ Complete	SMS scanning, ID matching, and in-app approval
AI Location Guide	✅ Complete	Google Maps API integration
Unknown Caller Summaries	✅ Complete	AI gets context and generates summary
Call Transcripts	✅ Complete	All AI-handled calls are transcribed and saved
Voicemail Feature	⏳ In Progress	Recording & storing voicemails

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🚀 Download the App

You can download the EchoMi APK for testing directly from our GitHub Releases page:

➡️ Download the Latest APK (v1.0.0) ⬅️

🔒 Note: This is an initial release. You will need to grant Call, SMS, and Location permissions for the app to function correctly.

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🔗 Related Repositories

• EchoMi AI Model
• EchoMi Backend

👥 Meet Our Team

Rudra Gupta App & Backend Developer

Ruchit Gupta AI & Python Developer

An intelligent assistant that's always there, even when you can't be.

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