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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
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Chapter1 Cisco Analog Telepho ne Adaptor Overview
Installation and Configuration Overview

Fax Services

The Cisco ATA supports two modes of fax services, in which fax signals are transmitted using the G.711
codec:
•Fax pass-through mode—Receiver-side Called Station Identification (CED) tone detection with
automatic G.711A-law or G.711µ-law switching.
•Fax mode—The Cisco ATA is configured as a G.711-only device.
How you set Cisco ATA fax parameters depends on what network gateways are being used. You may
need to modify the default fax parameter values (see Chapter 7, “Configuring and Debugging Fax
Services”).
Note Success of fax transmission depends on network conditions and fax modem response to these conditions.
The network must have reasonably low network jitter, network delay, and packet loss rate.

Supplementary Services

H.323 supplementary services are services that you can use to e nhance your telephone service. For
information on how to enable and subscribe to these services, see the “CallFeatures” section on
page 5-24 and the “PaidFeatures” section on page 5-25.
For information on how to use these services, see AppendixA, “Using H.323 Supplementary Ser vices.”
The following list contains the H.323 supplementary services that the Cisco ATA supports:
•Caller ID
•Calling line ID presentation/rejection (CLIP/CLIR)
•Call waiting
•Call waiting Caller ID
•Three-way calling
Installation and Configuration Overview
Table 1 -1 provides the basic steps required to install and configure the CiscoATA to make it operational.
Table1-1 Overview of the Steps Required to Install and Configure the CiscoATA and Make it Operational
Action Reference
1. Plan the network and Cisco ATA configuration.
2. Install the Ethernet connection.
3. Install and configure the other network devices.
4. Install the Cisco ATA but do not power up the CiscoATA yet. What the CiscoATA Package Includes, page 2-2
5. Download the desired Cisco ATA release software zip file from
the Cisco web site, then configure the CiscoATA.
Chapter 3, “Configuring the Cisco ATA for H.323”