| 摘要 |
PURPOSE: A private communication control device is provided to connect a call, if the call is generated to a mobile phone with VoIP(Voice over Internet Protocol) from an extension phone, directly to a mobile communication network or an Internet network, without passing a PSTN(Public Switched Telephone Network), and to support a cable phone and a wireless phone as the extension phone to enable an extension subscriber to perform speech through the cable or wireless phone. CONSTITUTION: A wireless phone controller, if a predetermined extension is called in a state that wireless phones(W1-Wn) are registered correspondingly to cable phones(T1-Tn), calls a wireless phone corresponding to the extension, and forms a wireless speech channel upon hook-off of the wireless phone. A VoIP server(26) connects a speech path with an incoming party through an Internet network for a VoIP call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn). A mobile phone interface part(20) delivers a mobile communication call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn) to a mobile phone base station(22) through a calling mobile terminal, to deliver the corresponding mobile communication call directly to a mobile communication network without passing a PSTN. A CPU(Central Processing Unit,10) makes the originated call delivered through an optimum path based on a type of the call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn), and makes corresponding cable phone and wireless phone corresponding to the predetermined called extension simultaneously called. And a switching part(16) switches a voice signal path for originating and incoming calls of the cable phones(T1-Tn) or wireless phones(W1-Wn). |
