5-25
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
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 5-23
• RxCodec, page 5-22
• TxCodec, page 5-22