Code for lengthening ringtone time doesn't work for me

[ennogs]

I have a new Samsung A55. I want to lengthen my ringtone time to 30 seconds.  I am entering

**61*121*11*30#

My ringtone length stays the same.

What am I doing wrong?

[Cynric]

Try **61*321**00# replace 00 with the delay you want (must be a multiple of 5).

[ennogs]

Thanks Cynric. Your code did not work. Your code switched off my voicemail. My voicemail number is 121.

[Cynric]

@ennogs OOopss sorry about that. I got that from the Samsung forum too.

[ennogs]

Does anybody know the correct code?

[AnnS]

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@ennogs wrote:

Does anybody know the correct code?

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Take a look at this previous thread, page 2 https://forum.vodafone.co.uk/t5/Android/Increasing-the-number-of-rings-before-voicemail-kicks-in/td-... @ennogs