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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for H.323 (version 3.0)
OL-4804-01
Chapter 5 Parameters and Defaults
Audio Configuration Parameters
AudioMode
Description
This parameter represents the audio operating mode. The lower 16 bits are for the Phone 1 port, and the
upper 16 bits are for the Phone 2 port. Table 5-1 on page 5-24 provides definitions for each bit.
Value Type
Bitmap
Default
0x00150015
Voice Configuration Menu Access Code
312
Related Parameters
• LBRCodec, page 5-23
• ConnectMode, page 5-32
• RxCodec, page 5-22
Table 5-1 AudioMode Parameter Bit Definitions
Bit Number Definition
0 and 16 0/1—Disable/enable silence suppression for all audio codecs. Silence suppression is enabled by
default.
1 and 17 0—Enable selected low-bit-rate codec in addition to G.711. This setting is the default.
1—Enable G.711 only.
2 and 18 0/1—Disable/enable fax CED tone detection. This feature is enabled by default.
3 and 19 Reserved.
4-5 and 20-21 DTMF Transmission Method:
• 0—Always in-band.
• 1—By negotiation.
• 2—Always out-of-band.
• 3—Reserved.
6-7 and 22-23 Hookflash Transmission Method:
• 0—Disable sending OOB hookflash message.
• 1—By negotiation (H.245 message).
• 2—Always out-of-band (H.245 message).
• 3—Use Q931message to send user keypad information for DTMF or hookflash transmission.
8-15 and 23-31 Reserved.