Where <timeout> is a number between 0 and 65535 minutes.
11.0 Frequently Asked Questions
Below are twelve of the most
Frequently Asked Questions
. The answers contained herein
may address many of the questions you could have about our product.
11.1 Does The Modem Understand AT Commands?
Yes. For information on AT commands, see the
"AT Command Reference"
section 12.0.
11.2 At What Speed Can I Send Data?
CDMA data transmission provides faster and more reliable connections than analog
technology. You can expect to connect at 14.4Kbps minimum speed, but speeds could
very well be higher. The speed at which you may be able to connect is contingent upon
many factors such as: your location, carrier, proximity to the base station and other
factors. CDMA 3G-1x systems support data rates of up to 153.6Kbps.
11.3 How Do I Perform An Over-the -Air Activation Of The Unit?
Access the modem via a terminal emulation package such as a PC running
Hyperterminal. Once connected to the modem, enter:
AT+CDV*22899
†
and wait several
minutes. Then, power cycle the modem and perform a test. For more information on
configuring Hyperterminal and running tests, please see the sections above entitled
"Using Terminal Emulation Software To Talk To The Modem"
, section 3.0 and
"Diagnosing COM Port Problems Using Hyperterminal"
, section 5.2.
11.4 What Is The AT Command To Change The Baud Rate Of The Modem?
AT+IPR=
<baud rate>
Valid rates are: 300, 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200 bps.
For example,
AT+IPR=57600
11.5 What Is The AT Command To Check The Baud Rate?
AT+IPR?
11.6 What Is The AT Command To Change The Flow Control?
AT+IFC=
<DCE_by_DTE>,<DTE_by_DCE>
†
Where:
<DCE_by_DTE>
Specifies the method to be used by the DTE to control
the flow of receive d data from the DCE.
<DTE_by_DCE>
Specifies the method to be used by the DCE to control
the flow of transmitted data from the DTE.
The valid numeric variables for the
+IFC
command are as follows:
0: No Flow Control
1: Xon/Xoff
2: Hardware
