Cisco ATA 186 Administrator's Guide

1-7
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter 1 Cisco Analog Telephone Adaptor Overview
Software Features
Software Features
The Cisco ATA supports the following protocols, services and methods:
• Voice Codecs Supported, page 1-7
• Additional Supported Signaling Protocols, page 1-7
• Other Supported Protocols, page 1-7
• Cisco ATA H.323 Services, page 1-8
• Fax Services, page 1-9
• Supplementary Services, page 1-9
Voice Codecs Supported
The Cisco ATA supports the following voice codecs (check your other network devices for the codecs
they support):
• G.711µ-law
• G.711A-law
• G.723.1
• G.729
• G.729A
• G.729B
• G.729AB
Additional Supported Signaling Protocols
In addition to H.323, the Cisco ATA supports the following signaling protocols:
• Session Initiation Protocol (SIP)
• Skinny Client Control Protocol (SCCP)
• Media Gateway Control Protocol (MGCP)
H.323 and SIP share the same software image. SCCP and MGCP also share a software image, which is
separate from the H.323/SIP image. If you wish to perform a cross-protocol upgrade from H.323 to
another signaling image, see the “Upgrading the Signaling Image from a TFTP Server” section on
page 8-1.
Other Supported Protocols
Other protocols that the Cisco ATA supports include the following:
• 802.1Q VLAN tagging
• Cisco Discovery Protocol (CDP)
• Domain Name System (DNS)
• Dynamic Host Configuration Protocol (DHCP)

Cisco ATA 186 Specifications

General

Operating Temperature	32°F to 104°F (0°C to 40°C)
Protocol	SIP, H.323
Network Interface	10/100BASE-T Ethernet
Audio Codec Support	G.729a, G.723.1
Power Supply	5V DC
Weight	0.23 kg (0.5 lb)
Relative Humidity	10 to 90% noncondensing
Ports	2 RJ-11 FXS ports