Cisco Systems Essential Cisco ATA 186 Manual for Network Card Audio Parameters and Defaults

Chapter 5 Parameters and Defaults

Operating Parameters

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.

RxCodec

Description

Use this parameter to specify receiving-audio codec preference. The following values are valid:

•0—G.723 (can be selected only if LBRCodec is set to 0)

•1—G.711A-law

•2—G.711µ-law

•3—G.729A (can be selected only if LBRCodec is set to 3)

Value Type

Integer

Range

0-3

Default

2

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)

OL-4008-01 5-21