Cisco 2-Port Analog Telephone Adapter for Multiplatform

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Cisco 2-Port Analog Telephone Adapter for Multiplatform

SKU: cis-ATA191-3PW-K9

Availability: In stock

The Cisco ATA 191 Analog Telephone Adapter is a 2-port handset-to-Ethernet adapter that brings traditional analog telephony devices into the IP world.


Manufacturer: Cisco

The Cisco® ATA 191 Analog Telephone Adapter turns traditional telephone, fax, and overhead paging communications devices into IP devices for greater cost-effectiveness. Customers can take advantage of IP telephony applications by connecting their analog devices to Cisco analog telephone adapters.

The Cisco ATA 191 Analog Telephone Adapter is the preferred solution to address the needs of customers who connect to enterprise networks, small offices, or the emerging unified communications as a service from the cloud. It has two standard FXS ports, which can be configured independently as two Session Initiation Protocol (SIP) registrations. With the ATA 191, customers can protect and extend their existing investment in analog systems, as well as smooth their migration to pure voice over IP in an affordable and reliable way.

The Cisco ATA 191 Analog Telephone Adapter is designed to work with Cisco call control systems.

Cisco ATA 191 Core Features:

  • 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
  • Security - 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
  • IPv6 - Enables an IPv4/IPv6 dual stack to help migration to IPv6
  • Platform support - The Cisco ATA 191 Analog Telephone Adapter is compatible with Cisco call control systems
  • Licensing - Phone licensing depends on the call control platform and its policies. For Cisco Unified Communications Manager, the Cisco ATA 191 Analog Telephone Adapter requires one Essential User Connect License (UCL) per port
  • Interface: Two RJ11 FXS ports, one 10/100 Mbps RJ-45 Ethernet port, power button: reset and PRT
  • LED indicators: Power, Network, Phone 1, Phone 2, PRT
  • Wall mountable
Subscriber Line Interface Circut (SLIC)
  • Ring voltage: 40 to 90 Vpk configurable
  • Ring frequency accuracy: 1%
  • Ring waveform: Trapezoidal or sinusoidal
  • Maximum ringer load: 3 Ringer Equivalence Numbers (RENs)
  • On-hook voltage (tip and ring): -46 to -56V
  • Off-hook current: 25mA +/-10%
  • Terminating impedance: 600 ohm resistive, 900 ohm resistive, or 220 ohm + 820 ohm
  • 120 nF complex impedance
  • Frequency response: 300 to 3400 Hz
  • Return loss (600 ohm, 300 to 3400 Hz): up to 26 dB
  • Idle channel noise: <-65 dBm 0p
  • Longitudinal balance: 58 dB (typical)
  • Voice quality Mean Opinion Score (MOS): >4.0
  • Voice quality jitter: < 150ms
  • MAC address
  • IPv4 only
  • IPv6 only
  • IPv4/IPv6 dual stack
  • Session Initiation Protocol (SIP)
  • Transmission Control Protocol (TCP)
  • User Datagram Protocol (UDP)
  • Real Time Protocol (RTP)
  • Real Time Control Protocol (RTCP)
  • HTTP
  • Secure HTTP (HTTPS)
  • Trivial File Transfer Protocol (TFTP)
  • Address Resolution Protocol (ARP)
  • DNS A and AAAA records
  • Dynamic Host Configuration Protocol (DHCP) client
  • Internet Control Message Protocol (ICMP)
  • Simple Network Time Protocol (SNTP)
  • Cisco Discovery Protocol (CDP)
  • Link Layer Discovery Protocol (LLDP)
Quality of Service (QoS)
  • IEEE 802.1p/Q (QoS and VLAN tagging)
  • Differentiated Services (DiffServ) / Type of Service (ToS)
  • Call forwarding: No answer, busy, and all
  • Call hold and resume
  • Caller ID generation (name and number): Bellcore, BT, and European Telecommunications Standards Institute (ETSI)
  • Caller ID with name and number
  • Call pickup and group pickup
  • Call transfer
  • Call waiting
  • Conference
  • Configurable ring frequency
  • Country-specific tones and cadences
  • Disconnect tone
  • Distinctive ringing: Calling and called number
  • Forced Authorization Code (FAC)/Client Matter Code (CMC)
  • Failover and fall back
  • Flash hook timer
  • Hook flash event signaling
  • Hotline and warm line calling
  • Message Waiting Indicator (MWI) tones
  • Music on hold
  • Off-hook warning tone
  • Polarity control
  • Redial
  • Share lines
  • Speed dial
  • Tip and ring voltage adjustment setting
  • Visual Messaging Waiting Indicator (VMWI) using Frequency Shift Keying (FSK)
  • Codec: G.711 a-law, G.711 µ-law, G.729a, G.729ab
  • Full duplex audio
  • Echo cancellation
  • Voice activity detection
  • Silence suppression
  • Comfort noise generation
  • Adaptive jitter buffer
  • Frame loss concealment
  • Adjustable audio frames per packet
  • Call progress tone generation
  • Impedance and gain adjustment
  • Dynamic audio payload
Fax and Modem
  • Real-time fax over IP via T.38 fax relay (Group 3)
  • Fax pass-through via G.711 (Group 3)
  • Fax tone detection and pass-through
  • Auto negotiation on transmission rate
Provisioning and Management
  • Central configuration
  • Interactive Voice Response (IVR)
  • Automated provisioning and upgrading via HTTP and TFTP
  • HTTPS with factory-installed client certificate
  • Advanced Encryption Standard (AES) encryption
  • SIP over Transport Layer Security (TLS) 1.1 and 1.2
  • Secure (encrypted) calling using Secure RTP (sRTP)
  • Encrypted TFTP configuration files
  • Image authentication
  • Secure boot
  • Secure Shell (SSH)
  • System reset to factory default
  • Password-protected administrator access authority
  • Provisioning, configuration, and authentication
  • TR-069
  • HTTP Push
  • PnP
  • DC input voltage: 5V DC at 2.0A maximum
  • Power consumption: 5W
  • Switching type (100 to 240V) automatic
  • Power adapter: 100 to 240V and 50 to 60 Hz (26 to 34 VA) AC input, with 6-ft (1.8-m) cord
  • Mean Time Between Failures (MTBF): 300,000 hours
  • Operating temperature: 32° to 104°F (0° to 40°C)
  • Nonoperating temperature: 14° to 140°F (-10° to 60°C)
  • Humidity: Operating 10% to 90%, noncondensing; nonoperating 10% to 95%, noncondensing