Cisco ATA 186 Administrator's Guide

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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter 5 Parameters and Defaults
Operating Parameters
• DNS2IP, page 5-31
• UDPTOS, page 5-31
• SigTimer, page 5-32
• OpFlags, page 5-33
• VLANSetting, page 5-34
MediaPort
Description
Use this parameter to specify the base port where the Cisco ATA transmits and receives RTP media. This
parameter must be an even number. Each connection uses the next available even-numbered port for RTP.
Value Type
Integer
Range
1 to 65535
Default
16384
Voice Configuration Menu Access Code
202
Related Parameters
• UDPTOS, page 5-31
• VLANSetting, page 5-34
LBRCodec
Description
This parameter allows you to specify which low-bit-rate codecs are available. The Cisco ATA is capable
of supporting two G.723.1 connections or one G.729 connection. When G.723.1 is selected as the low-bit-rate
codec, each FXS port is allocated with one G.723.1 connection. When G.729 is selected, only one FXS port
is capable of operating with the G.729 codec. The allocation of the G.729 resource to the FXS port is dynamic.
The G.729 resource, if available, is allocated to an FXS port when a call is initiated or received; the resource
is released when a call is completed.
The following values are valid:
• 0—Select G.723.1 as the low-bit-rate codec.
• 3—Select either G.729 as the low-bit-rate codec.

Cisco ATA 186 Specifications

General

Operating Temperature	32°F to 104°F (0°C to 40°C)
Protocol	SIP, H.323
Network Interface	10/100BASE-T Ethernet
Audio Codec Support	G.729a, G.723.1
Power Supply	5V DC
Weight	0.23 kg (0.5 lb)
Relative Humidity	10 to 90% noncondensing
Ports	2 RJ-11 FXS ports