Technical information

Table Of Contents
Chapter 1: Product Features
January 31, 2007 AT Commands Reference Manual 1-3
Service Provider (ISP) to send email or dialing the corporate Intranet to set up a virtual private
network (VPN) connection to retrieve confidential customer information from a company
database.
Improved OEM Features
G24 contains the following new and improved features:
TCP/IP support
Audio (digital and analog) - path, gain and algorithm
User-defined profiles
For a full list of G24 features, refer to the G24 Module Hardware Description manual.
TCP/UDP IP Connection
Overview
The network capabilities are achieved by using different layers of connections. Every layer of
connections provides basic connections to the layer above it. The higher the layer is, the more
capabilities it can provide.
Figure 1-1: System Overview
The three layers of connections are:
Physical links
Point-to-point links
TCP/UDP links
World Wide
Web
GSM/
Gateway
G24
Ter m ina l
RS232
PPP Connection
GPRS
Signaling
GPRS
TCP/UDP IP
Connection
Internet Site
www...
AT Commands