startRingtone() does not start playing ringtone when I receive an incoming call(IOS)

When I call InCallManager.startRingtone('_BUNDLE_'); I expect my phone to play the ringtone when I recive an incoming call on IOS.

The logs suggest that I called InCallManager.startRingtone('BUNDLE'); correctly but I dont hear any ringtone.

Logs

2021-08-20 11:15:28.939125+0100 MyApp[890:264486] RNInCallManager.startRingtone(): type: _DEFAULT_
2021-08-20 11:15:28.944606+0100 MyApp[890:264486] RNInCallManager.storeOriginalAudioSetup(): origAudioCategory=AVAudioSessionCategorySoloAmbient, origAudioMode=AVAudioSessionModeDefault
2021-08-20 11:15:29.061621+0100 MyApp[890:264486] RNInCallManager.startRingtone:ringtoneCategory:: audioSession.setCategory: AVAudioSessionCategorySoloAmbient, withOptions: 0 success
2021-08-20 11:15:29.062718+0100 MyApp[890:264486] RNInCallManager.startRingtone:ringtoneCategory:: audioSession.setMode(AVAudioSessionModeDefault) success

I have placed the ringtone files in the correct folder but still no sound/ringtone on IOS please help

Start by reproducing the iOS behavior with InCallManager.startRingtone('BUNDLE') and compare the logged AVAudioSession setup with whether audio is actually emitted. Inspect the iOS startRingtone path and verify that the bundled ringtone resource is loaded; done means an incoming-call ringtone is audible.