Signal failing

[Luke42]

In the past month my signal on my phone keeps dropping out when on phone calls or WhatsApp calls. It happens even when my iPhone says I have full signal. Can someone tell me what is wrong please. I never had this problem beforehand 

[MI5]

@Luke42 

All we can do is point you towards these guides for help.

Guide: How can I sort out my network issues? 

https://www.o2.co.uk/apps/my-network

Guide: How to find help & contact O2 

[japitts]

WhatsApp is just an app, and all usage is handled by both your phone & the mobile network, as data traffic. If usage of one app drops out. check whether other internet-based functions still work.

Voice calls dropping when coverage is still shown, along with coverage dropping without your phone moving, is indicative of a potential fault - but you'd need to test further to establish whether the device or network is the cause.

[MI5]

@Luke42 

The problem is with the data signal, clearly.

This can be proven further by using wifi calling or whatsapp over wifi rather than mobile data.

https://www.o2.co.uk/connectivity/wifi-and-4g-calling

[japitts]

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@MI5 wrote:

@Luke42 

The problem is with the data signal, clearly.

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VoLTE calls are not using mobile data. The OP did mention "phone calls", which I've taken to mean direct-dialled.

VoLTE would be the assumption here, but 3G/2G are equally possible.