Specifications

4-16 Chapter 4: Collaboration
For More Information
For more information about the Cisco Media Convergence Server, visit:
http://www.cisco.com/go/mcs and http://www.cisco.com/go/swonly.
The Cisco ATA 186 Analog Telephone Adaptor brings analog telephones into
the networked world. The Cisco ATA addresses the low-end product portfolio
need by targeting the enterprise, business local services, small-office
environment, and the emerging managed voice-services market. These cost-
effective handset-to-Ethernet adaptors help enable analog devices, such as
phones and fax machines, to support voice-over-IP (VoIP) services.
Cisco ATA adapters can be configured to use the standards-based VoIP protocols Session Initiation Protocol
(SIP) and Skinny Client Control Protocol (SCCP).
Ideal for Companies That Need These Features
Key Features
• Autoprovisioning with Trivial File Transfer Protocol (TFTP) provisioning servers
• Automatic assignment of IP address, network route IP, and subnet mask through Dynamic Host Configuration
Protocol (DHCP)
• Optional web configuration through built-in web server
• Optional touch-tone telephone keypad configuration with voice prompt
• Administration password to protect configuration and access
• Advanced preprocessing to optimize full-duplex voice compression
• High-performance line-echo cancellation to eliminate noise and echo
• Voice activity detection (VAD) and comfort noise generation (CNG) to save bandwidth by delivering voice, not
silence
• Dynamic network monitoring to reduce jitter artifacts such as packet loss
Specifications
Selected Part Numbers and Ordering Information
MCS-7845-I2-IPC2 /
MCS-7845-I2-ESC1 /
MCS-7845-I2-ESC2 /
MCS-7845-I2-CCX1
CCX1/CCE2
Cisco Media Convergence Server 7845-I2 V02
Cisco ATA Analog Telephone Adapter
Cisco ATA Analog Telephone
Adaptors
• Analog devices such as phones and fax machines enabled to support VoIP services by
converting the analog signal into an IP signal
• Continuing use of existing analog phones with IP network
Feature Cisco ATA 186 Cisco ATA 188
Telephone and network
interfaces
2 RJ-11 FXS ports
1 RJ-45 interface for network connections
2 RJ-11 FXS ports
1 RJ-45 interface for network connections
1 RJ-45 “switch port” for connection to PC or
another downstream Ethernet device
Note: “Daisychaining” multiple ATAs together
through the second RJ-45 port is not
supported
Dimensions (H x W x D)
1.5 x 6.5 x 5.75 in.
(3.8 x 16.5 x 14.6 cm)
1.5 x 6.5 x 5.75 in. (3.8 x 16.5 x 14.6 cm)
Weights
15 oz (425 gm) 15 oz (425 gm)
VoIP Protocols
SIP (RFC 2543); SCCP SIP (RFC 2543); SCCP
ATA1 8 6 - I1- A
Cisco ATA 186 2-port adaptor, 600 ohm impedance
1
1. Some countries have telephone networks that list multiple impedance requirements., so closely approximate the impedance of the typical
handsets used in the region when selecting the proper configuration to avoid poor echo cancellation performance.
ATA186-I2-A Cisco ATA 186 2-port adaptor, complex impedance (270 ohm in series w/ 750 ohm and 150 nF
in parallel)
1