Per that article:"Bottom line? These calls from your own number are illegal. Don’t pick up — or press buttons to be taken off the call list or to talk to a live person. That just leads to more calls. It’s best to ignore them, and move on with your day."
Unfortunately, Comcast cannot stop these actions from happening, but we do have some calling features that can help to combat these type of unwanted calls.
For Xfinity Home Phones
To Activate Call Screening
Lift the receiver and listen for the dial tone.
Follow the prompts to activate the feature and to add, delete or review the numbers on your list.
When creating your list, include the area code for local and long distance numbers.
To block calls from the last number that called you, press#when prompted.