FaxTalk can send and receive faxes through a traditional telephone line, or through the internet using a T.38 fax service. If you choose to send and receive your faxes using a traditional telephone line, you'll need a telephone line that produces a dial-tone. It can be a traditional land-line from a phone company or a land-line provided by your cable provider. It can also be a VoIP type line connected to an ATA device provided by many of the internet and VoIP providers but results may vary with these type of devices as they are dependent on the provider and your internet connection speed. If your telephone line can generate a dial-tone, you can connect a fax modem and use FaxTalk software with it. Please check with your provider to determine if the telephone line supports fax transmissions. Wireless phone lines and satellite phone lines are not recommended or supported. If you choose to use a T.38 internet fax provider, you don't require a telephone line or fax modem.