Vodafone Australia Vodafone Australia
How can we help?
Apple iPhone 8

Apple iPhone 8

iOS 16.0
iOS 16.0 iOS 15.2 iOS 14.0 iOS 13.1 iOS 12.0 iOS 11.0
  • Home
  • Device help
  • Apple
  • iPhone 8
  • Messaging
  • I can't make voice calls
  • Your phone is overloaded for unknown reasons
  • Parent page

Select help topic

Getting started

Basic use

Calls and contacts

Messaging

Apps and media

Connectivity

Specifications

swipe-right

I can't make voice calls on my Apple iPhone 8 iOS 16.0

Cause 6 of 10: Your phone is overloaded for unknown reasons

If your phone is overloaded, you won't be able to make any calls. It may help restarting it.

Solution: Restart your phone.

Step 1 of 3

Restart your phone

Press the Top volume key.

Step 2 of 3

Restart your phone

Press the Bottom volume key.

Step 3 of 3

Restart your phone

Press and hold On/Off until your phone restarts.

1 Restart your phone

Press the Top volume key.
Press the Bottom volume key.
Press and hold On/Off until your phone restarts.

Did this solve the problem?

Yes - All solved No - Go to next cause

Email this article to your friend

Required information *

Get information on...

Or select...

Another device

Are you ready to upgrade your device? Check out our latest mobile phones

© 2025 TPG Telecom Limited ABN 76 096 304 620 We acknowledge the Traditional Custodians of the land on which we live, work and connect. We pay respect to Elders, past, present, and emerging.