Fax Services; Methods Supported - Cisco ATA-186 Administrator's Manual

Chapter 1 Cisco Analog Telephone Adaptor Overview
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Fax Services

The Cisco ATA supports two modes of fax services, in which fax signals are transmitted using the G.711
codec:
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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
Services").
Success of fax transmission depends on network conditions and fax modem response to these conditions.
Note
The network must have reasonably low network jitter, network delay, and packet loss rate.

Methods Supported

The Cisco ATA supports the methods listed below. For more information, refer to RFC3261 (SIP:
Session Initiation Protocol).
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OL-3410-01
SIP proxy server redundancy
Outbound-proxy support
DNS SRV support
User-configurable, call-waiting, permanent default setting
Comfort noise during silence period when using G.711
Advanced audio
Billable features
Caller ID format
Ring cadence format
Silence suppression
Hook-flash detection timing configuration
Configurable on-hook delay
UDP Type of Service (ToS) configuration
Debugging and diagnostic tools
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.
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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide (SIP)
Chapter 7, "Configuring and Debugging Fax
Software Features
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