Voice calls cutting off and other party cannot hear me.

[Rivergreen]

We have 2 O2 Android phones in the house and for both we have these 2 problems since  Friday:
- Calls made get cut off

- Other party whether they are the caller or receiver, cannot hear me.

Calls made with What's App have no problems.
Microphone access is enabled.

O2 coverage check and text message response says there are no problems in this area.,

Any ideas?

[MI5]

@Rivergreen 

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you with this
Thanks

Guide: How can I sort out my network issues? 

[gmarkj · Accepted solution]

Sounds like there is an issue with signal if WhatsApp is fine @Rivergreen 

See if anything in the guide helps.

Guide: How can I sort out my network issues? 

You might also be able to use WiFi calling.

Contact o2 customer services and ask them to turn it on in your account.

24 hours later enable it in your My o2.

Finally turn it on for your phone.

Customer services are on social media: 

Facebook (https://o2uk.co/O2CFB), Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)

or call them on 202 or 0800 032 1402 (which you can use Skype to call for free) - Guide: A Guide to Skype 

This thread shows you where it should be on your account:

https://community.o2.co.uk/t5/Tech-Support/Wifi-calling/m-p/1532003#M19136