Cisco ATA 191 – VoIP phone adapter

SKU: ATA191-K9

$ 571 $ 342

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Manufacturer warranty included

Cisco ATA 191 – VoIP phone adapter


Voice quality
Offers clear, natural-sounding voice quality via advanced preprocessing, high-performance echo cancellation, Voice Activity Detection (VAD), and Comfort Noise Generation (CNG).

Central provisioning and configuration
Eases deployment via a Cisco Unified Communications Manager central interface.

Provides a complete security solution for both media and signaling.

Problem reporting (PRT)
Improves serviceability with a dedicated PRT button for problem reporting and log collection.

Enables an IPv4/IPv6 dual stack to help migration to IPv6.


Device TypeVoIP phone adapter

Width3.9 in

Depth1.1 in

Height3.9 in

Weight4.66 oz


Form FactorWall mountable

Connectivity TechnologyWired

Data Link ProtocolEthernet, Fast Ethernet

Network / Transport ProtocolARP, DHCP, RTP, RTCP

Remote Management ProtocolHTTP, HTTPS, TFTP, SSH

Status IndicatorsPower, phone

FeaturesSyslog 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 AlgorithmAES

Compliant StandardsIEEE 802.1Q, IEEE 802.1p, IEEE 802.1ab (LLDP)

IP Telephony


Voice CodecsG.711, G.729a, G.729ab, G.711u, G.711a, T.38

Telephony Interfaces2 phone (FXS)

IP Telephony FeaturesEcho cancellation, comfort noise generation (CNG), voice activity detection (VAD), call forwarding, caller ID, adaptative jitter buffer, call waiting, call hold, call transfer, silence suppression

Expansion / Connectivity

Interfaces1 x 100Base-TX – RJ-45 , 2 x FXS – RJ-11


MTBF300,000 hours

Compliant StandardsFCC 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 DeviceExternal power adapter

Voltage RequiredAC 120/230 V / DC 5 V

Power Consumption Operational5 Watt

Manufacturer Warranty

Service & SupportLimited warranty – 1 year

Environmental Parameters

Min Operating Temperature32 ?F

Max Operating Temperature104 ?F

Humidity Range Operating10 – 90% (non-condensing)

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.


We can ship to virtually any address in Australia. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full kilogram.