No phone service after new modem installed

user_5cbgfn Hey there and Welcome to our Forums. I am sorry to hear that you are having some problems with your phone service not working after installing a new modem. Our team is here to start working together to get to the bottom of this and make sure your home phone is connected. In order to get started can you send us a DM with your complete name and service address?
Here's the detailed steps to direct message us: 
• Click "Sign In" if necessary 
• Click the "Direct Message" icon (upper right corner of this page) 
• Click the "New message" (pencil and paper) icon 
• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list 
• Type your message in the text area near the bottom of the window 
• Press Enter to send your message