Cisco ATA 191, G.711Mu, G.711a, G.726, G.729A, G.729ab, T.38, UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, IEC 60950-1:2005 (Second Edition)..., CE Markings per directives 2014/30/EU and 2014/35/EU, SIP, TCP, UDP, RTP, HTTP, ARP, RTCP,

The Cisco Analogue Telephone Adaptor (ATA) 191 Multi-platform Analogue Telephone Adapter turns traditional telephone, fax machine and overhead paging communications devices into IP phones and devices. Ideal for customers with enterprise networks, small offices and Unified Communications as a Service (UCaaS) from the cloud, this IP phone adapter is a great fit for daily use while protecting your analogue investments with transition to IP networks.