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Backup Calling

Tiddybrook82
Level 1: Joiner
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I have a Samsung Galaxy A51 with a SIM only O2 contract.

Just recently I've noticed that beside my Data icon a second icon keeps appearing of a handset with a small SIM with a number 1 in it. It signifies "Backup Calling" apparently.

Does anyone know what it means, is it detrimental and is there anything or indeed do I even need to do anything to stop it appearing?

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MI5
Level 94: Supreme
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@Tiddybrook82 

I'd guess it was more to do with you using your sim in sim slot 1 and nothing to worry about at all.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)

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MI5
Level 94: Supreme
  • 127431 Posts
  • 614 Topics
  • 22123 Solutions
Registered:

@Tiddybrook82 

I'd guess it was more to do with you using your sim in sim slot 1 and nothing to worry about at all.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
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