ATA190 Cisco ATA 190 2-Port Analog Telephone Adapter

The ATA 190 (part number ATA190) is a Cisco 2-port analog telephone adapter that connects analog phones and fax machines to an IP network. Each of its two RJ-11 voice ports has its own phone number and handles voice or fax, and both ports can be used at the same time.

The network side is one RJ-45 10/100BASE-T Ethernet port. Signaling is SIP, with SRTP and TLS over SIP. Voice codecs are G.729A, G.729AB, G.711 a-law and G.711 mu-law. Fax runs as pass-through or T.38 relay, up to 14 kbps in T.38 mode and 34 kbps in pass-through mode, negotiated automatically. Voice activity detection, comfort noise generation, a dynamic jitter buffer and per-port line-echo cancellation with double-talk detection are included.

Configuration uses a web server, a touch-tone keypad with voice prompts, or TFTP autoprovisioning with DHCP addressing; Cisco Unified Communications Manager provisioning works with UCM 8.5(1), 8.6(2), 9.1(2), 10.0(1) and later.

Power comes from a universal AC supply for 100 to 240 V, with 5 VDC at 2.0 A on the DC side and 5 W maximum consumption. The unit measures 3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm), weighs 5.40 oz (153 g) and operates from 0 to 45 °C (32 to 113 °F). MTBF is 100,000 hours. A related Cisco adapter is the ATA191-K9 2-port analog telephone adapter, and more voice parts are in Cisco miscellaneous parts.