If you are not comfortable, then the best option will be Acrobits Softphone, and setup where callers will ring your phone from Sunday 12AM – Saturday 11:49PM. This will give you the basics, and you would just need to setup your voicemail which should be about as hard as setting up your cellular’s voicemail. Another option will be to pay a friend to set things up for you. However, I would like to think that the steps are pretty clear as long as you follow them in order.