| 摘要 | This Recommendation provides transmission performance guidelines for voiceband services over networks that are an interconnection of an IP network (e.g. "the Internet") and the PSTN. As modern telecommunications systems continue to evolve, hybrid networks of various kinds will become more prevalent. This tendency, together with the reality that voiceband communications will be an important source of traffic on such networks, has led ITU-T to develop this Recommendation. The intent is to provide to a wide audience a set of principles on transmission performance aspects of hybrid Internet/PSTN connections.
本建议提供了IP网络和PSTN互联上语音带业务的传输性能指导。由于现代通信系统持续发展，各种混合网络会越来越普遍。这个趋势，和这样的事实：语音带通讯在该网络上将会成为一个重要的交通资源，使得ITU-T开发该建议。意图是提供给广泛的观众一套混合Internet/PSTN连接的传输性能方面的原则。 |