Extending the amount of rings before

[Edtomo]

Hello,

I am using the OnePlus 5T and am trying to extend the amount of times the phone rings before it goes to voice mail. I tried the code:

• **61*901*11*30# then simply press 'call'.

But keep on getting

• MMI code started

Then the following error message shows up

• Call forwarding
• Connection problem or invalid MMI code
• (o)

Any advice would be appreciated. 

[MI5]

Temporarily turn off WiFi calling in your MyO2 then try again.

[jonsie · Accepted solution]

Enabling wifi definitely throws up those type of error messages for MMIcodes. Help here too if you need it

https://community.o2.co.uk/t5/Pay-Monthly/How-to-Lengthen-Ringtime-on-any-O2-Mobile/m-p/362784#U3627...

[EmilieT]

Hi @Edtomo  I just wanted to check if the advice above had helped you get the ringing time increased in the end?