在考虑是否需要完全舍弃传统电话,而只使用I P通话技术时,后者的通话质量和可靠性是企业主们最关心的问题。但要在当今攻击流行,病毒与蠕虫肆虐的互联网上发送语音呼叫,却又带来了一个新的问题:安全性。当然,传统电话线路(P S T N)也并非绝对安全。实际上,早年的黑客们就是电话 When considering whether the traditional phone needs to be completely discarded, and using only IP telephony, the latter’s call quality and reliability are the top concerns of business owners. But sending voice calls over the Internet today, which attacks attacks, viruses and worms, brings with it a new problem: security. Of course, traditional telephone lines (P S T N) are not absolutely safe. In fact, early hackers are on the phone