Change amount of rings before voicemail

[Ian_Mac]

Hi, how do I change length of time phone rings fir before ot goes to voicemail. I have Samsung S10+ and is set to the default of 15 seconds before transferring to voicemail and I would like to extend that to the max of 30 seconds pls

[Bambino · Accepted solution]

@Ian_Mac See this guide: How to Lengthen Ringtime on any O2 Mobile - O2 Community

[gmarkj]

Yes you can, up to a point @Ian_Mac 

See help in the guide below:

https://community.o2.co.uk/t5/How-to-Guides/How-to-Lengthen-Ringtime-on-any-O2-Mobile/ba-p/1175217 

You will need to turn off mobile data before sending the short codes (it's explained in the link above).