Those with jailbroken iDevice have a great ability to keep music from resuming after hanging up a call on iOS 9 iPhone with jailbreak tweak, called PauseAfterCall. Usually, whenever you receive phone or FaceTime calls, when music is playing, your iPhone will automatically pause the music till you will finish the phone call. When it does, iOS will resume the song where it left off.
If you don’t like how the music resumes after a phone call then there is no option to turn off this feature on a stock iPhone. Instead, you have to navigate back to the app that is playing the music and then pause it manually. PauseAfterCall prevents this problem.
How To Keep Music From Resuming After Hanging Up A Call In iOS 9
To install PauseAfterCall tweak your iPhone must be jailbroken. Use Pangu jailbreak tool for iOS 9 - 9.0.2 devices. Note that currently the recently released iOS 9.3.1update isn't jailbreakable, so if you have upgraded to it you won't be able to jailbreak your device.
Once you are jailbroken, head to Cydia and download PauseAfterCall tweak. The tweak is available as a free download package. Then install it on your device.
Once you install PauseAfterCall, there are no options to configure. You can start enjoying having your music remain paused even post-phone call. The tweak works with iOS 7, iOS 8 and iOS 9 firmware versions.
PauseAfterCall tweak works with such third-party music-playing apps as Pandora, Rdio, and Spotify. What is strange enough that this Cydia tweak doesn’t work with the stock Music app, especially with Apple Music or Beats 1.
In conclusion we can say that if you often find yourself getting busy after ending phone calls, you can use PauseAfterCall tweak to keep music from resuming after hanging up a call on iOS 9 iPhone.