User's Manual

Confidential Document
Page 14 of 19
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The GPRS or UMTS connection can either be enabled by typing the AT$GPRS command. Once enabled, the
ATrack ServerTool is then installed on a Windows PC in order to communicate with the AL7 remotely via a
GPRS or UMTS network. The ServerTool is a remote server application, which is mainly used for parsing data
by translating binary formats into readable formats or other testing purposes. Port forwarding is required if the
PC is located behind a Broadband router or any other firewall device or if it has third-party firewall software
installed. The communication is bidirectional, which means you can issue any AT command to the AL7 by
clicking the Send button. Please refer to the following snapshot and the Port forwarding website:
http://portforward.com/ for details.