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Typical Values for the “GSM/GPRS Settings”:
APN – Access Provider Name
The character string specifying the cellular service provider (e.g. internet2.voicestream.com).
Port – Linux port name
This is a character string specifying the port name (usually “/dev/ttyS0”).
Baud Rate – Transmission Baud Rate
This is a character string specifying the baud rate (usually 115200).
Init String – Initialization String
The character string sent to the internal GPRS modem card prior to initiating a call.
Hangup String – Disconnection String
The character string sent to the internal GPRS modem card when it disconnects from a call.
Dial String – Dialing string
The character string sent to the internal GPRS modem card to initialize dialing of the call.
Timeout – Connection Timeout value
This is a numeric string that determines the amount of time (in seconds) to wait for the call
to connect.
Extra Settings – Extra settings string
This is a character string that is sent to the internal GPRS modem card prior to initiating a
call that may be used in special circumstances. One example is sending manufacturer
specific startup strings.