The Cisco ATA 192 Analog Telephone Adapter is designed to connect analogue devices to enterprise networks, small offices, or unified communications as a service from the cloud. It enables connectivity for analogue devices via two standard FXS ports, allowing integration into modern communication systems. Additionally, it includes two 100BASE-T Ethernet ports with an integrated high-performance router to extend local network connectivity.

The Cisco ATA 192 supports the following audio codecs for communication: G.711 a-law, G.711 μ-law, G.729a, G.729ab, and G.726.

The Cisco ATA 192 has the following physical dimensions: 3.9 x 3.9 x 1.1 inches (100 × 100 × 28 mm) and weighs 4.7 oz (132.1 g).

The Cisco ATA 192 provides two RJ-11 FXS ports for connecting analogue devices and two 10/100 Mbps RJ-45 Ethernet ports for network connectivity.

The Cisco ATA 192 supports dual-stack networking, including IPv4/IPv6 dual stack (with support for both IPv4 only and IPv6 only). It also supports various networking protocols, such as SIP, TCP, UDP, RTP, DHCP, ICMP, SNTP, and CDP. The device is specifically designed for connecting analogue devices and does not include additional phone features.

The Cisco ATA 192 offers a variety of call management features, including anonymous call and call blocking, call forwarding (no answer, busy, and all), call hold and resume, caller ID blocking and generation, call pickup, group pickup, call transfer, call return, call back on busy, and call waiting.