|
|
ActiveXperts SMS Messaging Server - Send, Receive and Process SMS Messages !
|
 Visit ActiveXperts SMS Messaging Server Web Site
 Download ActiveXperts SMS Messaging Server
Overview of CDMA Modules
Introduction
CDMA Modules are similar to CDMA modems, but there's one difference: A CDMA Modem is an external equipment, whereas the CDMA Module is a module that can be integrated within an equipment. It is an embedded piece of hardware.
A CDMA modem is a wireless modem that works with CDMA networks.
A wireless modem behaves like a Hayes compatible dial-up modem.
The main difference between a standard Hayes modem and a CDMA modem is that a hayes modem sends and receives data through a fixed telephone line while a CDMA modem sends and receives data through radio waves.
A CDMA modem can be an external unit or a PCMCIA card (also called PC Card).
An external CDMA modem is connected to a PC through a serial cable, a USB cable, Bluetooth or Infrared.
PC'suse AT commands to control a modem.
CDMA modems and normal Hayes modems support a common set of AT commands.
You can use a CDMA modem just like a hayes compatible modem.
CDMA modems support an extended set of AT commands.
- Read, write and delete SMS messages.
- Send SMS messages.
- Monitor the signal strength.
- Monitor the charging status and charge level of the battery.
- Read, write and searche phone book entries.
The number of SMS messages that can be processed by a CDMA modem is pretty low, approx six messages per minute.
List of CDMA wireless modules
Anydata DTSS 800/1800 »
Motorola C18 CDMA Engine »
WaveCom Q2438 CDMA Engine »
|
Hardware
GSM/GPRS Modems
Software