cnPilot Home & Business R200 802.11n 300 Mbps Wi-Fi WLAN Router with Analog Telephone Adapter (ATA) VoIP Gateway, 4 port Network Switch and 2 phone ports, RoW. No power cord - WirelessUnits.com
USRobotics : faqs/analog/analog.html
File:One analog 56k modem and an ISDN modem from ELSA, one ISDN modem TKR FastLink.jpg - Wikipedia
ACS808MEAC-001 - 8-Port ACS800 Serial Console with analog modem - US Power Cord
USRobotics V.Everything 56K Analog Modem 002806-00 With Console Cable | eBay
ac - Question about modem (analog/digital) - Electrical Engineering Stack Exchange