Device Guides

Samsung Galaxy S4

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I can't make voice calls

This troubleshooting guide will take you through a number of possible causes
to help you find a solution to your problem.


Try again later when you're in an area with better network coverage.View our network coverage map.If you have broadband at home and can’t access your network try using WiFi Talk, which lets you make and receive calls and SMS using your Optus mobile number over a Wi-Fi connection.

Possible cause 1:

Poor or no network coverage

Solution:

Try again later when you're in an area with better network coverage.

View our network coverage map.

If you have broadband at home and can’t access your network try using WiFi Talk, which lets you make and receive calls and SMS using your Optus mobile number over a Wi-Fi connection.

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