IP PBX:IP PBX/網路電話系統是如何工作的?
網路電話系統/ IP PBX系統由一個或多個SIP電話/網路電話,以及一個IP PBX伺服器組成,還可以選用一個網路電話網關。IP PBX伺服器與代理伺服器類似:SIP用戶端可以是軟體電話或者基於硬體的電話,它向IP PBX伺服器登記,當其希望進行呼叫時,便向IP PBX請求建立連接。IP PBX具有所有電話/用戶的姓名位址錄及其相應的SIP位址,因而能夠通過網路電話網關或網路電話服務業者提供的VOIP服務來連接內部呼叫或發送外部呼叫。

網路電話系統/ IP PBX系統由一個或多個SIP電話/網路電話,以及一個IP PBX伺服器組成,還可以選用一個網路電話網關。IP PBX伺服器與代理伺服器類似:SIP用戶端可以是軟體電話或者基於硬體的電話,它向IP PBX伺服器登記,當其希望進行呼叫時,便向IP PBX請求建立連接。IP PBX具有所有電話/用戶的姓名位址錄及其相應的SIP位址,因而能夠通過網路電話網關或網路電話服務業者提供的VOIP服務來連接內部呼叫或發送外部呼叫。

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