Touchtone

VentaFax is a full-featured fax and answering machine software with color fax support. It sends and receives faxes and turns your PC with a fax modem into a versatile answering machine with remote control and email integration. You can retrieve your fax and voice messages from any touchtone... Platforms: Windows

Telephonectld is a daemon for linux that allows shell commands to be executed in response to a user phoning the system and entering DTMF codes via a touch-tone phone. The daemon uses a voice modem to answer and interact with the user. Platforms: *nix