Voicemail notification not work on BYODevice Google Pixel 3a

Posting this message to reach Comcast Official Employee, "ComcastChrisL", relative to no voicemail notifications on Bring-Your-Own-Device with a Google Pixel 3a, and discussed in this other forum message ......

https://forums.xfinity.com/t5/Xfinity-Mobile/No-notification-of-voicemails/td-p/3300121