Why does my iPhone go to vm when I am on the Facebook or TikTok app

Hi catrina136,

Are you using Wi-Fi Calling on your iPhone? If you are, it's possible this is impacting your incoming calls. Try to disable it at Settings > Phone > Wi-Fi Calling and ask someone to call you to test. Make a call with Wi-Fi Calling explains this feature in detail.

If your calls still go straight to voicemail when using Facebook or TIkTok, the developer of those apps may have more information. We encourage you to reach out to them for the best support options next.

How to contact an app developer - Apple Support

Contact the developer of an iOS, iPadOS, or watchOS app

1. Open the App Store on your iPhone or iPad.

2. Search for the app, then tap it. If you can't find it, tap the account button or your photo at the top of the screen, tap Purchased, tap "Not on this [device]," then tap the app.

3. The app's product page appears. Scroll to the Ratings & Reviews section, then tap App Support. If you don't see App Support, make sure that you're signed in with the correct Apple ID.

Thank you for being part of the Apple Support Communities.

Kindest Regards.