Hello, John156. Thanks for reaching out to us on the forums. You can certainly change the numbers of rings before the phone goes to voicemail. Please see the following link to see how this is done: https://www.xfinity.com/support/articles/change-number-of-rings-before-calls-are-forwarded
If you still need assistance, feel free to send me a PM with your first and last name so I may further assist you. To send a private message, please click my name "ComcastMichael" then select "Send a Message" on the right side.
Hello, John156. I have not heard back from you. If you still need assistance, please feel free to start a new thread.