2
Read First
Before operating the system, please read this manual thoroughly, and retain it for future
reference.
Attention
Please not leave the GSM Voice Modem.The GSM Voice Modem can only be used after has a
valid SIM card inserted. Please do not remove the shielding cover.
Warning
Hangzhou Tuolima Network Technologies Co., Ltd.will not fix the GSM Voice Modem that is
opened by user.In such case, its warranty will be terminated too.
1. Summary
More and more applications emerged with the rapid development of wireless data services, such
as vehicle navigation, remote monitoring, wireless Internet access, wireless POS, etc. Thus, more
and more devices need to be able to do wireless communication. With this background, Hangzhou
Tuolima Network Technologies Co., Ltd. develops its GSM Voice Modem. Users of this product
can add wireless communication capability easily to their own products, and then, develop many
applications.
The GSM Voice Modem mostly fits the need of data transfer, with SMS data communication,
GPRS data navigation, Circuit Switch / Data Connectivity, TCP/IP protocol etc. Because the easy
setting up in SCM (Single Chip Micyoco), it is convenient for network data communication. The
GSM Voice Modem with small size, which fits both embedded application and external peripheral
equipment. The AT command set and USB interface will offer easy data connection without any
extra circuit control.
Traditionally, the above applications use digital cellular, CDPD or other wire-line modem to
do communication, and these technologies are of the disadvantages of high communication
expense, limited communication range, dial before communications, etc. When we begin to
use GSM Voice Modem, all these problems disappeared.
Please read this manual carefully before your installation, and please keep this manual for
further reference.
