signaling system control signal 中文意思是什麼
signaling system control signal
解釋
信號系統控制信號-
It is accounted to the important signal technology in the ngn. sip is an application - layer control ( signaling ) protocol proposed by ietf for creating, modify and terminating session. the structure of the voip system and the relative technologies including audio coding / decoding and signal control technologies are discussed in this article
現有的ip電話信令控制協議h . 323協議由於自身的限制無法很好的滿足這種新要求,而sip協議以其所具有的結構簡潔、易於擴展和適于internet接入等良好的特性使它可以有效的控制媒體網關,控制pc呼叫,從而使其在ngn的控制協議中具有重要的地位。
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