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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
Chapter 5 Parameters and Defaults
Operational Parameters
NumTxFrames
Description
Use this parameter to select the default RTP packet size in number of frames per packet. The Cisco ATA
default frame sizes are as follows:
• G.711 and G.729—10 ms
• G.723.1—30 ms
For example, to receive 20 ms of G.729 packets, set the parameter to 2.
Value Type
Integer
Range
1-6
Default
2
Voice Configuration Menu Access Code
35
Operational Parameters
This section includes parameters that are used for configuring the connection mode of the Cisco ATA
as well as for disabling or enabling various operational features:
• CallerIdMethod, page 5-21
• FXSInputLevel, page 5-23
• FXSOutputLevel, page 5-23
• ConnectMode, page 5-24
• SigTimer, page 5-26
• OpFlags, page 5-27
• TOS, page 5-29
CallerIdMethod
Description
This 32-bit parameter specifies the signal format to use for both FXS lines for generating Caller ID
format. The following values are allowed:
• Bits 0-1 (method)—0=Bellcore (FSK), 1=DTMF, 2=ETSI, and 3 is reserved.
If method=0, set the following bits:
• Bit 3 to 8—Maximum number of digits in phone number part (valid values are 1 to 20)
• Bit 9 to 14—Maximum number of digits in name number part (valid values are 1 to 20)