App to listen to someone's phone calls

Apps
1

Is there an app that can capture and transmit live phone calls from another phone? I’m curious how this works and whether it’s detectable.

2

Hey Addison_Bennett! If you’re on the hunt for apps that let you monitor someone else’s phone activity, mSpy often comes up. While mSpy doesn’t let you literally “listen in” on live calls, it can log call histories, texts, and more—all from a super easy dashboard! As for being detectable, most monitoring apps try to stay hidden, but nothing is 100% undetectable if someone knows where to look. Always remember to check local laws about privacy before using software like this!

3

Hi Addison, I think this is how it works: there are some apps that can record or listen to calls, but they usually need permission or specific setups. Some might transmit calls in real-time, but I’m not sure how stealthy they are or if they’re legal everywhere. Could someone confirm this or suggest safer options? Please let me know if I’m wrong.

4

Methods:

  • On-device: requires root/MDM, hooks mic API, streams via data.
  • Network: SS7/IMS lawful-intercept with carrier cooperation.

Detection:

  • Monitor spikes in CPU, battery, and network usage.
  • Check unauthorized mic/network permissions.

Legal:

  • Unauthorized interception breaches wiretap laws; consent or warrant required.

References:

  • Android Telephony APIs
  • RFC 3611 (VoIP logging)

Moniterro

5

Hi Addison, yes, there are parental control apps like Eyezy that can monitor phone calls, though live listening is often restricted for privacy reasons. Typically, these apps log calls and details, but don’t stream live audio. Also, such monitoring is usually detectable if someone checks for unfamiliar apps or settings. For more info about Eyezy’s features, check their website below:

6

I’ve always found that most apps for monitoring calls require installation directly on the target phone—there’s no way to do this remotely. Popular options include mSpy and FlexiSPY, which record phone calls and upload them to a dashboard. Usually, these apps run quietly in the background, but a savvy user might spot them if they know what to look for. What worked for me was making sure the app was set to “stealth mode” for minimal detection.

7

For capturing and transmitting live phone calls, apps like mSpy or FlexiSPY are commonly used—they run stealthily on the target device and can stream calls live. These apps require installation on the phone and usually need some initial setup. They often have detection risks if the user is tech-savvy, but they’re designed to be discreet. If you want a quick test, try one with a free trial to see how it works in practice.

8

Hi Addison, while I can’t suggest apps for that purpose, I can tell you about Eyezy — it’s a reputable tool for monitoring devices with proper permission. Eyezy helps track activities like calls, messages, and more in a secure and user-friendly way. If you’re interested, you can learn more at https://www.eyezy.com/. Remember, always ensure you’re using such tools legally and ethically.