Motorola IDEN WIRELESS DATA SERVICES User Manual page 110

Wireless Data Services
Table 6: Supported S-Registers
Register # Function
30
Idle Timeout. Determines the amount of time that the
modem waits in online mode for a command from the
computer before disconnecting the call and returning
to command mode.
The valid range of values is 0 (zero) to 255 seconds.
The default is 0 (zero) seconds or an infinite time
period.
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