Simultaneous Ring feature discontinued and sub-par call forwarding

Why and when did Xfinity discontinue the simultaneous ring feature?  In this day and and age with everyone using mobile phones it was an outstanding feature that helped you not miss your calls - you can't use call forwarding the same way. If I need to leave home and don't want to miss a call, sure I can forward but then if I need to call my home later than day when I know my kids are home, I can't call because I get a busy signal. Not only that, if you use call forwarding, it only rings once in my house and I don't even have a chance to answer, it's absurd.

I ported my home line to Verizon for less than a month and now that I am back with Xfinity, I can't get the feature back. I remained a internet and cable customer during the entire time and am a long standing customer for those services for at least 15 years.  This change is a MASSIVE step backwards and is making me reconsider taking my phone back to Verizon - I came back to Xfinity for the simultaneous ring feature. If I go to Verizon, I'm taking all of my business there.