Motorola g20 Developer's Manual page 246

At commands
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AT Commands Reference
Example
At+fclass=1
OK
Atd035658584
CONNECT 9600
OK
At+frs=50
OK
4.14.1.4
+FTM, Transmit Data
This command causes the g20 to transmit data to the remote party using the modulation selected in <MOD>. The g20 sends the
data stream received from the terminal without any framing.
Transmission Using the Transparent Data Command
The DLE character, (0x10), is used as a special character to precede command characters. The character pairs
<DLE><command> are used to convey commands or status information between the terminal and the g20.
• Terminal to g20 streams (Encoding)
• When the terminal needs to send a <DLE> character in the data stream, it sends two sequence <DLE> characters to the
g20.
• When the terminal needs to send two sequence <DLE> characters in the data stream, it sends the <DLE><SUB> charac-
ters instead.
• When the terminal sends the terminator sequence <DLE> <ETX>, the data stream is terminated.
• g20 to terminal streams (Decoding):
• The terminal decodes the input stream and removes all character pairs beginning with <DLE>.
• The terminal recognizes <DLE><ETX> as the data stream terminator.
• The terminal recognizes and replaces <DLE><DLE> by a single <DLE> in the data stream.
• The terminal recognizes and replaces <DLE><SUB> by a single <DLE><DLE> in the data stream.
When the g20 receives the +FTM command, it immediately returns an OK result code. When the terminal receives the OK from
the g20, it can start sending the data stream using the transparent data command encoding. When the g20 decodes the terminating
sequence, it returns a CONNECT.
Set Command
The Set command causes the g20 to transmit data using the modulation selected in <MOD>.
Command
+FTM = <MOD>
232
//The g20 sends the OK after silence for 10*50 milliseconds
Response/Action
OK
or:
+CME ERROR: <err>
98-08901C68-O

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