1998: Microsoft Cordless Phone System
Today we have the wonders of Skype to make calls from our PCs, but back in the 90s, telephony pioneers relied on a cordless phone. Microsoft's MP-900 was the first 900 MHz phone to link up with a PC. It could work independently to make and receive calls, but required a system in order to utilize the Call Manager software.
The program provided a digital address book, Voice Command dialing, Caller ID, an easy way to manage voice mail, and other various phone-related conveniences. Unfortunately, a year after its release, the product was discontinued and the software was no longer supported after Windows 95/98.