Product data
USRobotics 
Command Reference
Data Command Set - 61
Defined Values 
<type>  An alphanumeric code corresponding to the selected option: 
NONE Data compression is not in use. V42B V.42bis is in use in 
both directions. ALT MNP 5 compression.  
Example +DR: V42B 
%C - Enable/Disable Data Compression 
Enables or disables data compression negotiation. The modem can only perform 
data compression on an error corrected link. 
Syntax 
%C[<value>] 
Defined Values 
<value>  A decimal number corresponding to the selected option: 0 
Disables data compression. 1 Enables both V.42 bis and MNP 5 
data compression. 2 Enables both V.42 bis and MNP 5 data 
compression. 3 Enables both V.42 bis and MNP 5 data 
compression. 
(Default.) 
Result Codes 
OK  <value> = 0, 1, 2, or 3. 
ERROR Otherwise. 
N - Automode Enable 
This command is included for compatibility only and has no effect other than 
returning a result code. The only valid values are 0-1. 
Syntax 
N[<mode>] 
Defined Values 
<mode > Decimal number corresponding to the selected value: 0-1. 
Result Codes 
OK <mode> = 0 to 1. 
ERROR Otherwise.  










