Cisco 2-Port Analog Telephone Adapter with 2 RJ-11 FXS and 1 RJ45 Ethernet PortThe Cisco ATA 191 Multiplatform Analog Telephone Adapter turns traditional telephone, fax, and overhead paging communications devices into IP devices for greater cost effectiveness. Customers can take advantage of IP telephony applications by connecting their analog devices to Cisco analog telephone adapters. The ATA 191 is the preferred solution to address the needs of customers who connect to enterprise networks, small offices, or unified