Naxer
Tech
Limited
3 |
P a g e
General Introduction
This document defines the protocols for establishing, managing & maintaining a GSM session (SMS or GPRS) with NaxerTech
NTT-101 device and the Server Base Control.
NTT-101 device acts as a mobile data station in an SMS (Short Message Service) or GPRS (General Packet Radio Service)
network. General Packet Radio Service is a radio technology for GSM networks that adds packet-switching protocols, shorter
set-up time for ISP connections. It is a new non-voice value added service that allows information to be sent and received
across a mobile telephone network. Allowing information to be transmitted more quickly, immediately and efficiently across
the mobile network, GPRS can provide instant connections subject to radio coverage. No dial-up modem connection is
necessary.
The GSM session protocols defined in this document includes communications sequences and send/receive data formats.
Unit Initialization
In this section SMS communication initialization and GPRS initialization protocols are discussed.
GSM Initialisation: This is needed for both SMS and GPRS
Format
%[CID]
INI
,
Contact No 1
,
Contact No 2
,
Contact No 3
,
Control Center No
,
Name,
ID
CID
CID refers to Command Identification, a randomly created 8-digit command tag. (Max 8 digits)
INI
Command
Contact No 1
First authorized contact number. (Max 15 characters)
Contact No 2
Second authorized contact number. (Max 15 characters)
Contact No 3
Third authorized contact number. (Max 15 characters)
Control Center No
GSM number assigned to Unit at Control Base. (Max 15 characters)
Name
(optional)
It could be the device name or owner’s name. (Max 15 characters) Name is inserted when
sending SMS alerts.
ID
(optional)
Unit ID. (Max 15 characters)
Example
%25900213
INI
,
+4433100000
,
+4433200000
,
+4433300000
,
+4433999999
,
Adrian,
12345
Command Identification
25900213
Contact No 1
+4433100000
Contact No 2
+4433200000
Contact No 3
+4433300000
Control Center No
+4433999999
Name
Adrian
(optional)
ID
12345
(optional)
