Clean Up The Telephone Line
If you have any equipment connected to the same phone line as the modem then remove it. Some modems, particularly
the high speed modems, require very clean phone lines to work and other electrical equipment may cause line noise
or even lower the voltage of the phone line. A classic example of this is the older TF200 touchphones. These phones
have a capacitor that needs to be recharged every 15 to 20 minutes, and if attached to the same phone line as a
modem will cause it to disconnect by dropping the voltage on the line. Therefore, disconnect any telephones and
faxes from their sockets before using the modem.