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Enable Native Call Recording [OOS] [ROOT/NON-ROOT] [APP/MAGISK/ADB/TASKER/BUILD.PROP]

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By shadowstep, Senior Member on 9th July 2017, 09:16 PM
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Introduction
Hello everyone! You might/might not know that OxygenOS (and ROMs based on it) have an in-built/native call recording feature. However, it is not enabled for everyone as it is region-locked and it might/might not be illegal to record calls where you are, with/without notifying the other party that the call is being recorded.

This thread has been created with the intent of enabling this call recording feature on OxygenOS (and ROMs based on it). There are several ways to achieve this, which have been listed below. You can use any method, as per your preference, and it should work. Let's get straight to it then!

Ways to Enable
Non-Root Method(s)
  • ADB command via a computer
Root Method(s) (in order of recommendation)
  • App which runs on boot
  • Magisk module
  • Script which runs on boot
  • Tasker profile
  • App which doesn't run on boot
  • Build.prop edit

Detailed Information and Usage
Non-Root Method(s)
  • ADB command via a computer
    • Requirements: A working ADB interface on a computer, USB debugging enabled on the device
    • Usage: Run the following command to enable native call recording:
      Code:
      adb shell settings put global op_voice_recording_supported_by_mcc 1
    • Reboot Survival: No, the command would have to be run again after every reboot.
Root Method(s) (in order of recommendation)
  • App which runs on boot
    • Requirements: A rooted device
    • Usage: Download and install the attached Enable Call Recording v2.0.apk and run it. At the first launch, grant root access to the app.
    • Reboot Survival: Yes, the app will automatically run at every boot and enable native call recording.
  • Magisk module
    • Requirements: Magisk 14.0
    • Usage: Download and copy the attached Enable Native Call Recording on OOS v2.0 to your device. Once done, import it in Magisk as a module.
    • Reboot Survival: Yes, Magisk will automatically run the module at every boot and enable native call recording.
  • Script which runs on boot
    • Requirements: Magisk 14.0
    • Usage: Download the attached 99callrecord.txt and rename it to remove the .txt extension. Once done, copy it to your device, move it to the /magisk/.core/service.d folder and set permissions of the file to 0755 (rwxr-xr-x).
    • Reboot Survival: Yes, Magisk will automatically run the script at every boot and enable native call recording.
  • Tasker profile
    • Requirements: A rooted device, Tasker app
    • Usage: Download and copy the attached Call_recording.prf.xml to your device. Once done, import it in Tasker as a profile.
    • Reboot Survival: Yes, Tasker will run the profile at every boot and enable native call recording.
  • App which doesn't run on boot
    • Requirements: A rooted device
    • Usage: Download and install the attached Enable Call Recording v1.0.apk and run it. At the first launch, grant root access to the app.
    • Reboot Survival: No, the app will have to be run manually after every reboot to enable native call recording.
  • Build.prop edit
    • Requirements: A rooted device, root file editor/app to edit build.prop
    • Usage: Open your device's build.prop file (located to /system folder) and look for the persist.sys.oem.region entry. The present value of this entry would be OverSeas, and this has to be changed to CN. Once done, save your changes, making sure that the permissions of the file stay the same, i.e. 0644 (rw-r--r--).
    • Reboot Survival: Yes, the entry change changes your OEM region to China, where the native call recording is already enabled.

Compatibility
Device(s)
  • OnePlus 5
ROM(s)
  • OxygenOS 4.5.x

Changelog
Enable Call Recording App
  • v1.0 - Initial release
  • v2.0 - Enable run-on-boot
Enable Native Call Recording on OOS Magisk Module
  • v1.0 - Initial release for Magisk v13.1, v13.2, v13.3 (Template version 4)
  • v2.0 - Update for Magisk v14.0 (Template version 1400)
99callrecord.txt
  • v1.0 - Initial release
Call_recording.prf.xml
  • v1.0 - Initial release

Important Read-Me Points
  • (App method only) After your device fully boots up, a notification message will appear in the status bar/pull down notification panel to let you know that call recording has been enabled (which will go after 10 seconds if you don't swipe it away).
  • (App method only) There is also a "Read Me" link in the notification message if you want to read a short information regarding the app.
  • (All methods) All your recordings will be stored at /storage/emulated/0/Record/PhoneRecord in the aac format.
  • (All methods) The mod works only works when using the stock OxygenOS dialer, and it may/may not run on a different dialer.
  • (All methods) If something (the app/magisk script/anything) that is supposed to run on boot is not executing on boot, you need to turn off advanced optimisation: Settings -> Battery -> Battery optimisation -> Three dot menu (⋮) -> Advanced optimisation -> Turn off.
  • (All methods) The mod enabled the native call recording feature, but may/may not turn on auto-recording of the calls. If you wish to do that, after using one of the methods listed above, open the Stock Dialer App -> Three dot menu (⋮) -> Settings -> Auto-record calls -> Turn on.
  • (Build.prop method only) There may be side-effect(s) to changing this value. One known effect is that your on/off-screen buttons will swap (recents and back), but they can be swapped back using the buttons settings. There may/may not be other side-effect(s) as well. Use caution!

Disclaimers
  • I am not the developer of the Enable Call Recording app. I merely stumbled upon it in OnePlus 3T's Themes, Apps and Mods forum and I take no credit for it. Please direct all your thanks and/or donations towards @padlad, the original developer of the app. Link to the original thread is here.
  • You are doing this at your own risk. I am not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed. Please do some research if you are unsure of how to go about something.
  • It might be illegal in your country to record calls with/without notifying the other party that the call is being recorded. Either ways, you are responsible for using this mod.

Thanks To
  • @padlad, for creating the Enable Call Recording app and the Tasker profile
  • @topjohnwu, for Magisk and all the work he's ever done for the community
  • @Crafty Apps EU, for Tasker
  • @Tomek Kondrat, for the mention in this XDA article
  • All of you guys for viewing this thread

OP Update Information
Created: July 10, 2017
Last Updated: September 21, 2017
The Following 22 Users Say Thank You to shadowstep For This Useful Post: [ View ] Gift shadowstep Ad-Free
 
 
10th July 2017, 07:17 AM |#2  
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Tried it on my OOS 4.5.5 stock. Works flawlessly!
11th July 2017, 04:29 PM |#3  
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Simple word: COOL!

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13th July 2017, 04:32 AM |#4  
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Works great for me. I've been played by these customer service representativeslately. No more. I'm recording all their bs so I can play it right back to them when they try to act like "Who said that?". Thank you! 😁

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14th July 2017, 08:08 AM |#5  
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14th July 2017, 09:20 AM |#6  
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You know you're supposed to tell the other party that the call is being recorded? That's why every support line you ever call will warn you that "Calls may be recorded". It's a legal requirement.
14th July 2017, 09:31 AM |#7  
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Quote:
Originally Posted by djsubterrain

You know you're supposed to tell the other party that the call is being recorded? That's why every support line you ever call will warn you that "Calls may be recorded". It's a legal requirement.

It's probably true in UK that you need to warn if the phone call is recorded. In some other countries it might be completely illegal to record phone calls. But at least in Finland you may record every phone call if you are a participant in that conversation without warnings or notifications.
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14th July 2017, 10:07 AM |#8  
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Working on FreedomOS - thanks!
14th July 2017, 02:15 PM |#9  
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Awesome! Can we perhaps enable this using adb shell commands when not rooted somehow?
14th July 2017, 02:54 PM |#10  
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Thanks, I had to disable battery optimization for the app option 1 in order to be runned at boot.

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14th July 2017, 03:33 PM |#11  
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Quote:
Originally Posted by Flint2

Thanks, I had to disable battery optimization for the app option 1 in order to be runned at boot.

Instead of doing that, go to Settings -> Battery -> Battery optimisation -> Three dot menu (⋮) -> Advanced optimisation -> Turn off. That should help. Try it after adding the app back to the battery optimized list.
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