🗹 Handset-to-Ethernet Adapter
🗹 Convert Communications Devices to IP
🗹 2 Standard FXS Ports
🗹 Configures as Two SIP Registrations
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The Cisco ATA 191 2-Port Analog Telephone Adapter (ATA191-K9) is a reliable and compact device designed to easily incorporate analog phones into contemporary IP-based call networks. With its two RJ-11 FXS ports for analog phones and one RJ-45 10/100 Mbps Ethernet port for network communication, the ATA 191 turns ordinary analog phones into VoIP devices that work with full functionality. This adapter is perfect for small offices, remote workers and company sites making the switch to unified communications. It offers crystal-clear call quality and supports standard SIP protocols for broad compatibility. Voice deployment is made safe, effective, and scalable with the ATA 191's robust provisioning techniques, secure RTP media encryption, encrypted signaling (TLS) and simple web configuration. IT managers looking for an affordable analog-to-IP conversion will find it to be a sensible solution because to its small size, low power consumption and versatile mounting options.
• Two RJ-11 FXS Ports connect up to two analog phones, fax machines or modems, supporting legacy communication devices on IP networks.
• Single 10/100 Mbps RJ-45 Ethernet Port provides network connectivity with support for DHCP or static IP addressing for easy deployment.
• Supports SIP and Multiplatform Firmware that is compatible with leading SIP-based VoIP platforms ensuring flexible, wide-ranging interoperability.
• High-Quality Voice Codecs that includes G.729A/B, G.711A-law, G.711µ-law codec support for bandwidth-efficient, crystal-clear voice transmission.
• Fax Relay Support that supports T.38 Fax Relay and transparent faxing for reliable fax communications over IP networks.
• Comprehensive Security with secure provisioning, HTTPS web configuration, authentication, encrypted SIP signaling (TLS 1.1/1.2), Secure RTP (SRTP), image authentication, secure boot and SSH access protect device integrity and call privacy.
• Quality of Service (QoS) prioritizes voice traffic via 802.1p and DiffServ to maintain call quality even on congested networks.
• Power Efficient with low power consumption (approx. 5W) with universal AC/DC adapter support facilitates green operations.
• Multiple Deployment Options with wall mountable with included accessories and compact footprint ideal for various office or home environments.
• Easy Troubleshooting with LED indicators for power, network status and individual phone port activity simplify diagnostics.
🗹 Preserve investments in existing analog phones and fax machines with seamless IP integration.
🗹 Bridge legacy telephony to modern SIP networks smoothly, reducing complexity and cost.
🗹 Built-in encryption and authentication methods safeguard corporate voice data and device access.
🗹 Support for efficient codecs and QoS ensures clear voice calls without hogging network resources.
🗹 Easily deploy multiple ATA 191 units to adapt to growing business voice infrastructure needs.
🗹 Space-saving design and easy mounting options meet the needs of any small footprint environment.
| Manufacturer | Cisco |
| Manufacturer Part Number | ATA191-K9-RF |
| Product Name | Cisco ATA 191 2-Port Analog Telephone Adapter |
| Product Type | Analog Telephone Adapter |
Width | 3.9 in |
Depth | 1.1 in |
Height | 3.9 in |
Weight | 4.66 oz |
Form Factor | Wall mountable |
Connectivity Technology | Wired |
Data Link Protocol | Ethernet, Fast Ethernet |
Network / Transport Protocol | ARP, DHCP, RTP, RTCP |
Remote Management Protocol | HTTP, HTTPS, TFTP, SSH |
Status Indicators | Power, phone |
Features | Syslog support, DiffServ support, IPv6 support, full duplex mode, SNTP support, Quality of Service (QoS), reset button, LLDP support, DHCP client, Type of Service (ToS), Internet Control Message Protocol (ICMP), dual image support, AES encryption, Cisco Discovery Protocol, secure boot, VLAN Tagging |
Encryption Algorithm | AES |
Compliant Standards | IEEE 802.1Q, IEEE 802.1p, IEEE 802.1ab (LLDP) |
VoIP Protocols | SIP, RTCP, RTP, SRTP |
Voice Codecs | G.711, G.729a, G.729ab, G.711u, G.711a, T.38 |
Telephony Interfaces | 2 phone (FXS) |
IP Telephony Features | Echo cancellation, comfort noise generation (CNG), voice activity detection (VAD), call forwarding, caller ID, adaptative jitter buffer, call waiting, call hold, call transfer, silence suppression |
Interfaces | 1 x 100Base-TX - RJ-45 ¦ 2 x FXS - RJ-11 |
MTBF | 300,000 hours |
Compliant Standards | FCC Part 15 B, EN 61000-4-2:2009, EN 61000-4-11:2004, EN 61000-3-3:2013, EN 61000-4-3:2006+A1:2008+A2:2010, EN 61000-4-8:2010, EN 61000-4-5:2014, EN 55024:2010+A1:2015, Directive 2014/35/EU, Directive 2014/30/EU, EN 61000-4.4:2012, UL 60950 Second Edition, CAN/CSA C22.2 No. 60950 Second Edition, ANSI C63.4-2014, AS/NZS 60950-1:2015, EN 61000-3-2:2014 Class A, EN 55032:2015 Class B, AS/NZS CISPR32:2015 Class B, IEC 60950-1:2005 (ed.2)+A1:2009+A2:2013 |
Power Device | External power adapter |
Voltage Required | AC 120/230 V / DC 5 V |
Power Consumption Operational | 5 Watt |
Service & Support | Limited warranty - 1 year |
Min Operating Temperature | 32 °F |
Max Operating Temperature | 104 °F |
Humidity Range Operating | 10 - 90% (non-condensing) |