Calls from Ring Groups don't ring as call waiting to members of the group

[bminker]

We are on the newest version of 3CX with all updates. We have a variety of Yealink phones.
If an employee is on a call and a call comes into a Ring Group they are a member of, they don't get the call waiting beep. Also, if they hang up the call, the new call does not ring their extension.
They are all set to accept multiple calls and they can get multiple calls if dialed directly. It just doesn't work from a Ring Group.
Is there a Ring Group setting I'm missing?

 

[cobaltit]

https://www.3cx.com/community/threads/multiple-incoming-calls-for-reception-desk.59617/#post-250709

 

[Saqqara]

Ring groups and queues ignore ‘accept multiply calls’

Ring group will poll the extensions at the beginning of the call hitting the ring group and if the phone is busy it will not ring that extension even if the phone becomes free