SIP软件开发记录 由于通信网的封闭性，网络结构的复杂性，通信设备的多样性，使得通信软件难以在一个统一的平台（包括硬件平台和操作系统平台）下运行，所以迄今为止，通信行业的开源项目仍屈指可数。 　 　下面，我们把通信类的软件简单的进行一下划分-SIP software development record as a closed network, network structure of the complex nature of the diversity of communications equipment, making it difficult to communication software in a unified platform (including the hardware platform and operating system platform) running, so far, the telecommunications industry is still a few open-source projects . Now, we kind of communication software for about a simple division