incoming phone calls keep getting intercepted

yes, that is correct, but it is entirely random. For example, our mother in laws calls ring through, both her landline and her cellphone, but several of her health care providers phone calls are intercepted and sent to voicemail, but not all of them. I haven't made any changes to the modem, although your tech support has restarted it numerous times. Thank you for your help, this is frustrating to say the least but also a bit dangerous given the precarious health of my elderly mother in law. My wife is her primary caregiver.

user_s5q94b Are those health care providers numbers coming from a toll-free number? Here is a great link that explains how to modify the spam and call block features. I believe that the number they are calling from is being caught in that loop of the call block feature. 

https://www.xfinity.com/support/articles/change-spam-blocker-settings

Thanks for getting back, some of the numbers are toll free and some are not. I went through the entire spam and call block features, even allowing all calls and we are still experiencing this issue. Not sure what this could possibly be, but don't want to spend any more time on the phone with tech support. If not resolved soon, I think we will just drop xfinity and figure out another way to keep a landline

@user_s5q94b, thank you for following up with us and the additional information! This is not the experience we want you to have, especially after going through the spam and call block features. 

We'll need to take a deeper dive on this issue. When you have a moment, please send us a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forum's page.

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