首页>
外国专利>
Method of and system for extending internet telephony over virtual private network direct access lines
Method of and system for extending internet telephony over virtual private network direct access lines
展开▼
机译:在虚拟专用网直接接入线上扩展互联网电话的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A virtual private network includes an internet protocol (IP) network and a public switched telephone network (PSTN). An enterprise gateway is operably connected to the IP network. The enterprise gateway is operably connected to a switch of the PSTN through a direct access line (DAL). The set-up signaling for virtual private network calls and the calls themselves are transported across the internet protocol network and the public switched telephone network through the direct access line.
展开▼