After the first attempt failed, I was meaning to enter a prefix and forgot to do so before hitting fax. Only putting the fax number in worked but it messed up feeding the last page so I resent it using the *96 prefix and worked for it.
So I decided to do some tests sending to my uncles fax machine sending one page.
The first faxing using *96 worked and took 56 seconds
The second fax trying to just dial the number failed
The third fax just dialing the fax number worked in 50 seconds
The fourth fax used *98 and it worked also in 50 seconds.
The first time could have been off some because of maybe the printer/fax needing to turn on at my uncles shop so it is hard to go off of time on the experiment.
What prefix should I use or set as the default on the fax. Is one better than the other when it comes to faxing. It does seem like faxing to a regular number will work sometimes but might cause issues.
Why would the *99 prefix not work anymore if that is what it was designed for. Just seems like if Ooma wanted to change it, they would make it known or send an email to their customers so they would know about the faxing issues. Luckily for me, I kind of already knew about the issue with *99 maybe not working anymore.