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Cisco Analog Telephone Adaptor Overview
This section describes the hardware and software features of the Cisco Analog Telephone Adaptor
(Cisco ATA) and includes a brief overview of the H.323 protocol.
The Cisco ATA analog telephone adaptors are handset-to-Ethernet adaptors that allow regular analog
telephones to operate on IP-based telephony networks. Cisco ATAs support two voice ports, each with
an independent telephone number. The Cisco ATA 188 also has an RJ-45 10/100 BASE-T data port.
This section covers the following topics:
•
H.323 Overview, page 1-2
Hardware Overview, page 1-5
•
Software Features, page 1-7
•
Installation and Configuration Overview, page 1-9
•
Figure 1-1
The Cisco ATA, which operates with Cisco voice-packet gateways, makes use of broadband pipes that
are deployed through a digital subscriber line (DSL), fixed wireless-cable modem, and other Ethernet
connections.
The term Cisco ATA refers to both the Cisco ATA 186 and the Cisco ATA 188, unless otherwise stated.
Note
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Cisco ATA Analog Telephone Adaptor
C IS C O A
T A 1 8 6
A N A L O G
T E L E PH
O N E A D
A PT O R
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide for H.323 (version 3.0)
C H A P T E R
1
1-1
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