The Cisco ATA 191 is a multi-platform adapter that connects analogue telephones, fax machines, and overhead (one-way) paging devices to Ethernet networks. It converts these devices into IP-enabled devices, offering a cost-effective solution for integrating traditional analogue equipment with modern IP networks.

The Cisco ATA 191 has physical dimensions of 100 x 100 x 28 mm (3.9 x 3.9 x 1 inches) and weighs approximately 132.1 grams (4.7 oz).

The Cisco ATA 191 ensures superior audio quality with features such as clear, synthesised acoustic and concatenated voice, full-duplex audio, noise cancellation, silence suppression/voice activity detection (VAD), and comfort noise generation (CNG).

The Cisco ATA 191 includes two RJ11 FXS ports, one 10/100 Mbps RJ-45 Ethernet port, a reset/problem reporting button (PRT), LED indicators (for power, network, phone 1, phone 2, PRT), and it can be conveniently wall-mounted.

The Cisco ATA 191 supports various networking protocols, including MAC address, IPv4 and IPv6 (dual-stack or individual), Session Initiation Protocol (SIP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Real-Time Protocol (RTP), Real-Time Control Protocol (RTCP), HTTP, and Secure HTTP (HTTPS).

The Cisco ATA 191 provides a range of telephony features, such as call forwarding (no answer, busy, all), call hold and resume, caller ID generation (name and number), call pickup and group pickup, call transfer, call waiting, conference calling, configurable ring frequency, country-specific tones and cadences, disconnect tone, distinctive ringing, forced authorisation code (FAC)/client matter code (CMC), failover and fallback, flash hook timer, hook flash event signalling, hotline and warm line calling, message waiting indicator (MWI) tones, and music on hold.

Yes, the Cisco ATA 191 is designed to convert traditional analogue devices into IP-enabled devices, ensuring compatibility with both analogue and IP devices.

Yes, the Cisco ATA 191 can be wall-mounted, providing flexibility in installation and saving space on a desk or tabletop.