The Cisco ATA 191 Multiplatform Analog Telephone Adapter converts traditional telephony, fax, and paging devices into IP-enabled solutions, providing cost-effective access to IP telephony applications. Designed for enterprise networks, small offices, and cloud-based unified communications, it supports two independent FXS ports with SIP registrations, enabling seamless migration from analog to VoIP while preserving existing investments.
It is fully compatible with third-party call control systems (not Cisco call control) and offers broad protocol support including SIP, TCP, UDP, RTP, HTTP, ARP, ICMP, RTCP, and LLDP. Management is enabled via SNMPv3 and a web-based interface, while QoS ensures reliable performance. Security features include AES, HTTPS, SSH, and DMZ support.
Key features include noise reduction, caller ID, call waiting, conferencing, and fax compatibility (T.38). It supports G.711Mu, G.711a, G.726, G.729A, and G.729ab voice codecs. The ATA 191 includes 2x RJ-11 FXS ports, 1x RJ-45 Ethernet LAN port, reset button, and LED indicators.
Compact and lightweight (100×100×28 mm, 132.1 g), it operates within 0–40 °C and 10–90% humidity. Certifications include UL 60950, CE Marking, CAN/CSA, IEC 60950-1, and AS/NZS compliance. Designed for reliable integration, the ATA 191 ensures secure, high-quality IP telephony migration with advanced management and performance features.
