My phone line says LINE-IN-USE. All the handsets are securely on the charging units. Is there a way to reset the phone modem (located in a clothes closet) using Online tools. I cannot even find a Online Chat or technical Phone number.

I have an Internet modem, and a separate Phone modem (in a closet).  I'm getting a Line-In-Use message. I have re-seated each phone on the chargers.  Is there a way to go Online to reset this specific modem or is pulling the power cord, the only option (requires moving clothes).  I see an online Reset, but I believe it's for the internet modem, but not for the Phone modem.

I also could not find an Online Chat link in my Account.  Also no phone number for support, or these numbers are buried in some link....Bad!