Can I extend ring time before call goes to voicemail?

[dalyer]

See here: 

• https://community.48.ie/t5/The-Knowledge-Base/How-do-I-use-my-Voicemail/ta-p/244

You can increase the time your phone rings from 5 to 30 seconds, or in multiples of 5 seconds. The default ringing time is 15 seconds.

Read the instructions very carefully as it's very easy to get the codes wrong. 

If you need to contact 48 support about this then see the links in my signature below.