
Chapter 14 – AT Commands
86 Universal IP AT Commands Reference Guide
#CONNECTIONSTART – Start Communication
Description: This command directs the TCP/IP stack to originate an outgoing call.
Upon receiving this command, the TCP/IP stack attempts to complete a connection session.
The TCP/IP stack will dial the number according to the #GPRSMODE value and Dial Option
parameter (DIALN1 or DIALN2 depending on DIALSELECT). If an error occurs, the TCP/IP stack
automatically re-attempts the call origination attempt, according to the REDIALCOUNT
parameter. Once the physical layer is up, the TCP/IP stack runs.
Syntax: AT#CONNECTIONSTART
AT#CONNECTIONSTART
(Request connection to
network.
This is for GPRSMODE=0.)
DIALING
Note: Phone line is available
2124560123
Note: Dial DIALN1 or DIALN2 number depending on DIALSELECT
CONNECT 9600
Note: Modem speed negotiated between both sides. If the TCP/IP
stack is configured for modem only operation (PPPMODE
parameter), there are no more return codes
213.192.200.4
Note: IP address attributed to the TCP/IP stack
Ok_Info_PPP
Note: As soon as the TCP/IP stack software displays this message, it
is ready to receive commands
AT#CONNECTIONSTART
(Request connection to
network. This is for
GPRSMODE=1 or
GPRSMODE=2)
Ok_Info_GprsActivation
Note: As soon as the TCP/IP stack software displays this message, it
is ready to receive commands
213.192.200.4
Note: IP address attributed to the TCP/IP stack
BUSY
Note: A busy signal is detected on the remote site
TCP/IP stack will wait REDIALDELAY seconds then dial again. The
redialing will continue until success or until the number of call
retries defined in parameter REDIALCOUNT has been reached.
NO CARRIER
Note: A physical connection could not be completed. The
TCP/IP stack will wait REDIALDELAY seconds then dial again. The
redialing will continue until success or until the number of call
retries defined in parameter REDIALCOUNT has been reached.
Values: Read Parameters:
DIALN1
DIALN2
DIALSELECT
ISPPW
ISPUN
REDIALCOUNT
REDIALDELAY
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