Synaccess Networks NP-0801DTM - Manual (Page 225)

CUSTOM AT COMMANDS
225 HSPA+ AT Commands Reference Guide
Parameters and Values
Socket connection identifier.
1‐6
Transmission protocol.
0 TCP.
1 UDP.
Remote host port to contact.
1‐65535
String type, address of the remote host. Can be:
any valid IP address in the format: “xxx.xxx.xxx.xxx”.
any host name to be solved with a DNS query.
Socket closure behavior for TCP.
0 Local host closes immediately when remote host has closed. Default: 0.
255 Local host closes after an escape sequence (+++).
UDP connections local port.
1‐65535
Connection mode.
0 Online mode connection. Default: 0.
1 Command mode connection.
Notes
„
parameter is valid for TCP connections only and has no effect (if used) for UDP connections.
„
parameter is valid for UDP connections only and has no effect (if used) for TCP connections.
„
Note: If is set to online mode connection and the command is successful online data mode is
entered, with the intermediate result code CONNECT. After the CONNECT you can suspend the direct interface
to the socket connection (the socket stays open) using the escape sequence (+++): the module moves back to
command mode and you receive the final result code OK after the suspension. After such a suspension, it’s
possible to resume it in every moment (unless the socket inactivity timer timeouts, see #SCFG) by using the #SO
command with the corresponding .
„
If you set to command mode connection and the command is successful, the socket is opened, you
remain in command mode and the result code OK appears.
„
If there are input data arrived through a connected socket and not yet read because the module entered
command mode before reading them (after an escape sequence or after #SD is issued with set to
command mode connection), these data are buffered and the SRING URC is received. The SRING presentation
format depends on the last #SCFGEXT setting. It is possible to read these data afterwards issuing #SRECV. Under
the same hypotheses it is possible to send data while in command mode issuing #SSEND
„
Resume of the socket(#SO) after suspension or closure(#SH) has to be done on the same instance on which the
socket was opened through #SD. In fact, suspension is done on the instance itself
Examples
Open socket 1 in online mode
AT#SD=1,0,80,”www.google.com”,0,0,0
CONNECT