AirBeep

Project Overview

AirBeep is an iOS utility that silences the built-in call-recording disclosure tones. It backs up the original tone files first, replaces the start and stop disclosure sounds with equal-length silence, and can restore them from the backup at any time. All replacements use silent assets from AirliftSilence and keep the original durations, with read-back verification after every write. Backup, silence, and restore are three separate actions with no ambiguous switch state.

Item	Value
Platform	iOS / iPadOS 18.0 - 27.2 B2
Language	Swift (Xcode project)
Package	Unsigned IPA (GitHub Actions build)
License	GPL-3.0

Back up first, silence second, restore anytime — three clear steps, no confusing state.

Key Features

• Tone silencing: replaces the start and stop call-recording disclosure tones with equal-length silence
• Separated actions: back up, silence, and restore are independent steps with clear state
• Backup protection: originals are backed up before any change, and backups are kept and never overwritten
• Read-back verification: every write is verified by reading the file back
• One-tap restore: restore the original tones anytime from the Documents backup
• Network settings: advanced settings with a custom device IP and a live network-interface table for the loopback connection
• Bilingual UI: English and Simplified Chinese

Target Audience

• Users in regions where call recording is legal
• iPhone users who need silent recording disclosures
• Users with frequent business calls
• Users who value backups and reversibility

Quick Start

1. Open airbeep.xcodeproj in Xcode, set your signing team, and build to a physical device, or build an unsigned IPA with GitHub Actions and sign it yourself
2. Open the app and run the backup action to save the original tones
3. Run the silence action to replace the start and stop tones with equal-length silence
4. To undo, restore the originals from the backup with one tap

Core Advantages

• Fully reversible: originals are backed up and never overwritten, so restoration is always available
• Read-back verification: every replacement is verified to avoid half-finished states
• Equal-length silence: replacement files keep the original durations and do not disturb the recording flow

System Requirements

Item	Requirement
OS	iOS / iPadOS 18.0 to 27.2 B2
Device	Physical iPhone or iPad
Build	Xcode 27 or later
Network	Loopback connection (LocalDevVPN, default 10.7.0.1)

Notes

• Version window: only iOS 18.0 to 27.2 B2 are supported; later versions are not guaranteed
• Law and consent: removing a recording disclosure affects whether the other party is notified; use only where legal and with the required consent
• Private behavior: relies on non-public system behavior; compatibility may change between iOS releases
• iOS 26.4 networking: from iOS 26.4, loopback connections also depend on the physical Wi-Fi subnet and must be reconfigured after network changes