Voicemail too quickly

[HarrowBaggie]

How do I prolong  the amount of time it goes to voicemail when the call is not answered immediately. 

As currently I only have about 10 seconds. 

S21 ultra.

[gmarkj]

There are instructions in the guide below @HarrowBaggie to change the time.

Guide: All you need to know about O2 Voicemail 901 

[gmarkj]

The section you want is this one:

Divert calls when there is no reply
To activate ** 61 * phone number * 11 * no seconds# SEND

Where it says "no seconds", enter a number between 5 and 30 in a multiple of 5 (so 5, 10, 15, etc)

[HarrowBaggie]

I've tried  that  and it does not work, 

I get an error message ,

I have tried 

901

+447802091901

And my actual phone number but still get error.

[HarrowBaggie]

I get the message

Connection problem or invalid  mmi code.

Thanks 

[Cleoriff]

@HarrowBaggie 

Another guide here if it helps Guide:How to Lengthen Ringtime on any O2 Mobile 

If nothing works then you need to contact O2 to reset your VM account.

Give O2 a call on 202  or 0344 809 0202.

Or you can message O2 on Facebook ( https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW) or Instagram ( https://o2uk.co/O2CIG), hopefully they should be able to help.

[MI5]

@HarrowBaggie 

You need to turn off wifi and wifi calling to send mmi codes.

[HarrowBaggie]

Thanks all.

I've  tried everything. 

Wifi, wifi calling off.

5g, lte off, still no joy.

I'll contact customer service tomorrow. 

[HarrowBaggie]

I logged  a call with the help desk, still no solution. 

It's definitely an O2 network issue as its the same on my , my wifes and my work phone/sim. So all 3.

The common factor being that all on the O2 network!

I can see why O2 can't fix this, as was fine on my previous network. 

I've even tried the help chat, bit no joy too.