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
NumTxFrames
Description
Use this parameter to select the number of frames per packet that the Cisco ATA transmits:
• The frame size for each G.729 data packet is 10 ms.
• The frame size for each G.723 data packet is 30 ms.
Note The frame size for G.711 is fixed at 20 ms per packet and is not configurable.
Examples
• To obtain 60 ms of G.723 audio, set the parameter value to 2.
• To obtain 120 ms of G.723 audio, set the parameter value to 4.
Note Cisco recommends using the default value of 2.
Value Type
Integer
Range
1-6
Default
2
Voice Configuration Menu Access Code
35
Related Parameters
• LBRCodec, page 5-19
• RxCodec, page 5-21
• TxCodec, page 5-22

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