HE920 Family Product Description
80404ST10112A Rev.2 2013-05-06
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
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A new internal firewall has been implemented in order to guarantee a certain level of
security on internet applications.
5.1.2.
IP EASY definition
The IP EASY feature provides a way to replace the need of an Internet TCP/IP stack at the
terminal equipment side. The steps that will be required to obtain a virtual serial connection
(that is actually a socket) to the Internet peer are:
configuring the WCDMA/EDGE/GPRS Access
configuring the embedded TCP/IP stack behavior
defining the Internet Peer to be contacted
request the WCDMA/EDGE/GPRS and socket connections to be opened (host is
connected)
exchange raw data
close the socket and WCDMA/EDGE/GPRS context
All these steps are achieved through AT commands.
As for common modem interface, two logical statuses are involved: command mode and data
traffic mode.
In Command Mode (CM), some AT commands are provided to configure the Data
Module Internet stack and to start up the data traffic.
In data traffic mode (Socket Mode, SKTM), the client can send/receive a raw data
stream which will be encapsulated in the previously configured TCP / IP packets which
will be sent to the other side of the network and vice versa. Control plane of ongoing
socket connection is deployed internally to the module.
For more detailed information regarding the use of the IP EASY feature, please consult IP
EASY User Guide and AT Commands Reference Guide.
