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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
Chapter 1 Cisco Analog Telephone Adaptor Overview
Software Features
• Configurable tone (dial tone, busy tone, confirm tone, reorder tone, call waiting tone)
• IP address assignment—DHCP-provided or statically configured
• Cisco ATA configuration by means of a TFTP server, web browser, or voice configuration menu.
• VLAN configuration
• Caller ID format
• Ring cadence format
• Silence suppression
• Low-bit-rate codec selection
• RTP media port configuration
• Hook-flash detection timing configuration
• Cisco Discovery Protocol (CDP)
• User interface password
• Type of Service (ToS) configuration for audio and signaling ethernet packets
• Debugging and diagnostic tools
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 6, “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 that the Cisco ATA Provides
Table 1-1 lists the supplementary phone services that the Cisco ATA provides for MGCP. Table 1-1
includes links to the corresponding parameters that allow you to configure these services.
Table 1-1 Supplementary Services that Require Configuration on the Cisco ATA
Service Parameter
Caller ID CallerIdMethod, page 5-21
Call Waiting SigTimer, page 5-26
Call-Waiting-Caller ID CallerIdMethod, page 5-21, SigTimer, page 5-26
Three-way Conference ConnectMode, page 5-24—Bit 23