SIM300的主要功能有：语音通话、短信收发、GPRS网络数据收发、彩信收发。SIM300模块主要应用在通讯领域，如移动电话、远程数据监控、短信提醒发送、GPRS MODEN。打个比方，如果您要设计移动电话，那么内部主要组件应该包括通讯模块SIM300、中心处理器MCU、显示屏、键盘、话筒听筒。
SIM300 main function has: voice messaging, GPRS network data sending and receiving MMS transceiver SIM300 module is mainly used in the field of communications, such as mobile phone remote data monitoring SMS alerts sent GPRS MODEN, for example, if you want to design a mobile phone, then the internal main component should include communication module SIM300 center processor MCU microphone receiver display keyboard
(2013-05-13, C/C++, 9150KB, 下载38次)
基于C#企业短信群发系统源代码，简单适用。
Mass based on the C# enterprise messaging system source code, simple to apply. (2012-04-25, C/C++, 1345KB, 下载4次)
彩信开发接口以标准的DLL(Dynamic Linkable Library)即动态链接库文件提供，是软件开发商（ISV）和系统集成商（SI）在系统开发中对于短信、彩信、WAP PUSH应用需求的最优解决方案之一。同时也是企事业终端用户短信、彩信、WAP PUSH嵌入应用的最佳选择。
MMS development interface to a standard DLL (Dynamic Linkable Library) that provides dynamic-link library files, the software developer (ISV) and system integrators (SI) in the system development for SMS, MMS, WAP PUSH most application requirements One excellent solution. Enterprises and end users but also SMS, MMS, WAP PUSH the best choice for embedded applications. (2011-03-11, C/C++, 4456KB, 下载43次)
程序ExampleStub实现两个功能：
1.自动发送特定短信给特定号码；options->Execute snippet
由CExampleStubAppUi::SendSMSL()实现
2.打开短信编辑器，接受人，内容已经预先填好。options->Command stub
（扩展功能：打开彩信编辑器，接受人，标题，内容已经预先填好。）
由CExampleStubAppUi::OpenEditor()实现
Program ExampleStub achieve two functions: 1. Automatically send specific messages to specific numbers options-> Execute snippet from the CExampleStubAppUi:: SendSMSL () to achieve 2. Open the message editor, recipient, content has been pre-filled. options-> Command stub (extension: open the MMS editor, accept the person, title, content has been pre-filled.) from CExampleStubAppUi:: OpenEditor () implementation (2010-07-12, C/C++, 31KB, 下载9次)
SIMCOM公司的SIM300的AT指令中文版根据V.25TER的AT指令概要（Overview of AT Commands According to V.25TER）
A/ 重新发送最后给的AT指令（Reissues the last command given）
SIMCOM the company' s SIM300 Chinese version of the AT command of AT commands according to V.25TER Summary (Overview of AT Commands According to V.25TER) A/re-send the final to the AT command (Reissues the last command given) (2010-03-29, C/C++, 14KB, 下载36次)
短信模块，包括短信模块的全部功能包括，彩信也代码也包括在内
message (2009-04-20, C/C++, 174KB, 下载18次)
中文AT命令，对于开发短信相关的产品有参有考价值，
Chinese AT command, for the development of message-related products have test parameter has value (2007-10-18, C/C++, 330KB, 下载20次)
使用gsm modem发送sms/wap push,同时也支持解析mms notification,从而可以使用普通gsm modem接收彩信
use gsm modem send sms/WAP push, also support the analytic mms notification, thus the use of ordinary gsm modem receive MMS (2006-12-02, C/C++, 5KB, 下载182次)
中国电信集团公司企业标准--短消息网关协议（SMGP）
China Telecom Enterprise Standard-- Short Message Gateway Protocol (Wide) (2006-07-01, C/C++, 150KB, 下载77次)
企业短信助理平台
enterprise messaging platform (2005-01-23, C/C++, 4810KB, 下载30次)