last chance to help mom before she cancels

[MisterEd]

I assigned a static IP, forwarded ports, have no backup programs running in the background. Her system has not worked with any consistency since I installed it almost 2 weeks ago. She can receive calls intermittently but has no dial tone if she trys to call out right after making or receiving a call.
She's 83 and needs oxygen, I need to know that a 911 call will work if she needs it, right now voipo is a safety concern for me.

She spent 6 minutes on hold waiting for tech support to answer one day last week and gave up.

With no disrespect meant to you or any voip provider OR Voipo specifically if a 911 emergency is a possibility due to a chronic illness I wouldn't rely on ANY voip service especially for an elderly parent. What if she picks up the phone and there is dialtone? What if the call doesn't complete? What if the audio is unintelligible or out in either or both directions? Worse yet, what if her INTERNET goes down? Both my parents are in their 90's and my mother has had heart problems. They wanted to save some money by getting a voip provider but I talked them out of it real quick. WAY too many things could happen even if the service looked as if it were up and running. Penny wise pound foolish. There are just too many variables with voip.