Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 246 Ver. 1.00 – 10/29/2008
4.6.2. $TCPSRC TCP API Source Ports
Command Function Specifies the TCP API source port range
used when making a TCPAPI connection.
Command Functional Enfora Specific
Group
Command Format Query AT$TCPSRC=?
Response $TCPSRC: (1024-65535),(1024-65535)
OK
Write Format AT$TCPSRC=<Start Port Number>,
Response [<End Port Number>]
OK
Read Format AT$TCPSRC?
Response $TCPSRC: <Start Port Number>,
<End Port Number>
Execution Format N/A
Response N/A
Parameter Values
<Start Port Number> TCP API starting port number
<End Port Number > TCP API ending port number
Reference
Standard Scope Optional
Enfora Implementation Scope Full
Notes
 Each connection attempt uses the next port number in sequence until the
end port is passed. When this happens the port is set to the start port
number.
 This current port number in use is retained over a power cycle.
 If only the start port number is provided, the end port number will be start
port number + 49 (range of 50)