HotlineGuard

Forensic Audio Watermarking
System Online

Dashboard Overview

Real-time system metrics and status

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0 Total Configs
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0 Blocked Callers
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0 Watermarked Files

Welcome to HotlineGuard

HotlineGuard is a forensic audio watermarking system designed for secure hotline and call recording environments. It embeds invisible, inaudible watermarks into audio streams that uniquely identify each caller or session. If a recording is leaked, the embedded watermark can be extracted and traced back to the original source — enabling rapid forensic attribution.

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Embed Watermarks

Inject imperceptible caller-ID watermarks into audio files at configurable intervals.

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Forensic Analysis

Extract and decode watermarks from suspicious audio to identify the source caller.

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Caller Blocklist

Maintain a blocklist of compromised or suspicious caller IDs for proactive defense.

Watermark Test

Embed a forensic watermark into an audio file

Drag & drop audio file here

or click to browse

Forensic Analysis

Analyze audio files for embedded watermarks

Drag & drop audio file to analyze

or click to browse

Configuration

Manage watermarking configurations for recordings

Add / Update Config

Lookup Config

Upload Base Audio to Drive

Drag & drop base audio

Caller Blocklist

Manage blocked caller identifiers

Add to Blocklist

Blocked Callers

Caller ID Reason Created At Action
No blocked callers found

Call History

View a log of all incoming calls to the hotline

Recent Calls

Caller ID Status Date & Time
No calls found

System Settings

Manage Google Drive connection and Webhook URLs

Google Drive Setup

Drag & drop or click to upload

Twilio Webhook URL

Copy this URL and paste it into your Twilio Phone Number's "A CALL COMES IN" webhook field.