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2 Messages

Tue, Feb 23, 2021 5:34 AM

9600 baud modem on Xfinity voice line

We have some legacy equipment that still requires an old-fashioned 9600 baud modem at our end. We're trying to eliminate the one AT&T POTS line we have for that purpose. I know it is possible to use a fax machine with a residential VOIP line but the Comcast Business support agent I spoke with today said she is not sure if a slow speed modem can work with the business voice line we have. What would it take to connect our old modem to the Xfinity voice line?

Official Employee


43 Messages


Hello and Happy Thursday! I hope you’re having a great week! I also appreciate you taking a moment out of your day to reach out to us on our Business Community Forums! You’ve reached the best place and perfect person to help with virtually all of your account needs! Going forward, I appreciate these details in regard to the equipment you're using and would love to help assist with your VOIP inquiries. So that we can take a closer look on the backend and see what options are available for you, please send us a private message by clicking my name "ComcastJosephW" then select "Send a Message" on the right side with your name and service address to get started. Thanks again for both your time and interest!