Configuring The Cisco Ata For Fax Pass-Through Mode; Audiomode - Cisco ATA 186 Administrator's Manual

Using Fax Pass-through Mode
The Cisco ATA can also accept standard-based protocol-level codec switch requests, but cannot send
Note
such requests. Therefore, to interoperate with a Cisco gateway, use the Cisco-proprietary codec switch.
This section contains the following topics:
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Configuring the Cisco ATA for Fax Pass-through mode

Fax Pass-through mode requires configuring two configuration parameters:
AudioMode, page 7-2
ConnectMode, page 7-3

AudioMode

Description
The AudioMode parameter is a 32-bit value. The lower 16 bits apply to the Phone 1 port of the
Cisco ATA and the upper 16 bits apply to the Phone 2 port of the Cisco ATA.
Example
The following is an example of configuring the Phone 1 port of the Cisco ATA for fax pass-through
mode:
0xXXXX0015
Translation
This setting translates to the following bitmap:
xxxx xxxx xxxx xxxx 0000 0000 0001 0101
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The values
Note
To configure the same value for the Phone 2 port of the Cisco ATA, the value would be
The configuration of one port is independent from the configuration of the other port.
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide (H.323)
7-2
Configuring the Cisco ATA for Fax Pass-through mode, page 7-2
Configuring Cisco IOS Gateways to Enable Fax Pass-through, page 7-3
Bit 0 = 1—Enables G.711 silence suppression (VAD)
Bit 2 = 1—Enables Fax CED tone detection and switchover upon detection
Bit 4 = 1, Bit 5 = 0—DTMF transmission method = out-of-band through negotiation
Bit 6 = Bit 7 = 0—Hookflash transmission method = disable sending out hookflash
in the example apply to the Phone 2 port of the Cisco ATA.
XXXX
Chapter 7 Configuring and Debugging Fax Services
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0x0015XXXX
OL-4008-01