| Voice codecs | G.711Mu,G.711a,G.726,G.729A,G.729ab |
| Fax compatibility | T.38 |
| Noise reduction | Y |
| Reset button | Y |
| LED indicators | Y |
| Power LED | Y |
| Safety | UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, IEC 60950-1:2005 (Second Edition) + A1:2009 + A2:2013 and/or AS/NZS 60950.1:2015 |
| Certification | CE Markings per directives 2014/30/EU and 2014/35/EU |
| DHCP client | Y |
| Web-based management | Y |
| Quality of Service (QoS) support | Y |
| Caller ID | Y |
| Conference call | Y |
| Call waiting | Y |
| VoIP protocols | SIP |
| Supported network protocols | TCP, UDP, RTP, HTTP, ARP, RTCP, ICMP, LLDP |
| Management protocols | SNMPv3 |
| Security algorithms | AES,HTTPS,SSH |
| DMZ support | Y |
| Ethernet LAN (RJ-45) ports | 1 |
| Modem (RJ-11) ports | 2 |
| Operating temperature (T-T) | 0 - 40 °C |
| Storage temperature (T-T) | -10 - 60 °C |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 10 - 95% |
| Dimensions (WxDxH) | 100 x 100 x 28 mm |
| Weight | 132.1 g |
| Description |
| Cisco ATA 191. Voice codecs: G.711Mu,G.711a,G.726,G.729A,G.729ab, Fax compatibility: T.38, Safety: UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, IEC 60950-1:2005 (Second Edition).... VoIP protocols: SIP, Supported network protocols: TCP, UDP, RTP, HTTP, ARP, RTCP, ICMP, LLDP, Management protocols: SNMPv3. Security algorithms: AES,HTTPS,SSH. Dimensions (WxDxH): 100 x 100 x 28 mm, Weight: 132.1 g |