Yes, dial-up internet, with those screechy ... Other options include the 5686G external modem with an RS232 interface, or the 5639 soft-modem if you simply have to have a USB interface.

The following acronyms are used with the status lights on an external analog dial-up modem. For some functions, there is more than one acronym that can be used. Acronym Meaning AA Auto answer mode ...