Call2WTSP (Call 2 WhatsApp)
Instant System Overlay & 1-Tap WhatsApp Lead Follow-Up Engine for Android
Call2WTSP is a B2B productivity and direct marketing Android application for sales teams, real estate brokers, and business owners. Automatically detects phone call completion, fetches the caller number, and renders a system overlay to launch pre-filled WhatsApp offer messages with a single tap.
Call2WTSP • WhatsApp Engine
Post-Call Automated Outreach
The Problem Statement
Sales professionals and real estate brokers spend excessive time manually saving phone numbers into contacts and copy-pasting promotional messages after every call. This causes friction, delayed follow-ups, and severe lead drop-off.
The Call2WTSP Solution
Call2WTSP automates the bridge between phone calls and WhatsApp communication. By intercepting call termination and rendering an instant system overlay popup with formatted numbers, follow-up friction is reduced to zero.
End-to-End User & Execution Flow (UX)
From Phone Call to WhatsApp Conversion
Onboarding & Grants
User installs side-loaded APK and grants Call Logs, Phone State, and Overlay permissions.
Offer Configuration
User edits offer text in Flutter control center, selects call filter, and enables Master Switch.
Call Interception
Phone call ends (IDLE state). Background service fetches number and formats +20.
1-Tap WhatsApp
Overlay pops up: "Send WhatsApp Offer?". User taps Send, opening WhatsApp pre-filled.
App Screenshots & Overlay Gallery
High-Resolution APK Screenshots Pending
Official Android app UI screenshots and interactive overlay video demonstrations will be uploaded shortly.