VoIP Protocols and Standards
This voice technology typically uses standard codecs like G.711, which is the standard when transmitting uncompressed packets. The G.729 codec is commonly used when transmitting compressed packets. There are also many proprietary codecs used by equipment vendors and although voice quality may sometimes suffer when compression is used, it significantly reduces bandwidth usage.
Once the data is transmitted via IP, Real-Time Transport Protocol (RTP) is typically used. Session Initiation Protocol, or SIP, is often used when it’s necessary to start or end a call.
There are other typical components necessary to use VoIP services, such as an IP PBX to manage telephone numbers, gateways to connect networks, and session border controllers that provide network connections and security. A VoIP system can also make use of location-tracking, such as E911 (enhanced 911), to collect call statistics for proactive and reactive management.
How Can VoIP Help Hotels Cut Cost
IP Phones
PBX System
有过马来西亚学习经历的小伙伴应该都清楚，马来西亚的课程考核体系是十分灵活的，马来西亚代写 在对马来西亚课程考核体系研究的过程中也发现了很多与国内课程考核体系不同的地方，下面我们来一起看一看。
在国内，课程考核通常分为平时成绩和期末成绩，平时成绩主要由课堂表现以及大小考试的成绩决定，期末成绩则是由期末考试的结果来决定，并且期末成绩在在总成绩中的占比高达70%，相对来说不够灵活变通，容易出现“唯分数论”的情况，影响学生的学习积极性。而在马来西亚，课程考核主要看学生的平时作业完成情况以及平时表现，期末成绩占总成绩的40%左右，平时表现所占比重更高，这样一来，学生在平时上课时的积极性也会提升不少。