adjust number of voice mail rings

I think you're talking about a wireless home phone. Please provide the model number of the device you're talking about. I'm assuming the cord from the phone plugs directly into it.

Like you we are users and not AT&T employees or representatives. So why or how you create an account I can't answer. Part of the problem I had when trying to help was trying to figure out just what you were talking about and now I see you wanted to extend your rings so your home answering machine would pick up the calls. So if those on this forum who give freely of their time can't get the correct information we sure can help find a solution. So that's my speech, now this is my input

I have a Verizon wireless home phone, up front I told them I didn't want the phone company voicemail and to turn it off, which I'm sure AT&T can also do. I have online access to my account, but I can't change options or access the feature codes, if that's what you want to do. Also this is just cell phone service and most of the voice features of a cell phone are the same for your unit, not apps, calling features. I would imagine a bit of Internet searches would fine most if not all of the feature codes for you.