Patent ID: 8223950
Filing Date: 2012-07-17
Classification: H04L,H04M

Abstract:
1. A dual network telephone device configured to selectively perform a telephone communication via a public telephone network and via an IP telephone network, the dual network telephone device comprising: an IP telephone identification information generating device configured to generate IP telephone identification information for a non-IP telephone device configured to perform a telephone communication using the dual network telephone device via the public telephone network; a registering device configured to register to an IP telephone server an association of an IP address of the dual network telephone device and the IP telephone identification information for the non-IP telephone device; a call request receiving device configured to receive a first call request sent from the IP telephone server or via the public telephone network; a notice instruction sending device configured to send a call request notice instruction to the non-IP telephone device and the dual network telephone device is configured to execute a call request notice on the dual network telephone device when the first call request is received via the public telephone network, and the notice instruction sending device is configured to send the call request notice instruction to the non-IP telephone device and the dual network telephone device does not execute a call request notice on the dual network telephone device when the first call request is received via the IP telephone network and the first call request includes the IP telephone identification information for the non-IP telephone device as a call request destination; an IP telephone identification information receiving device configured to receive IP telephone identification information input to and sent from the non-IP telephone device; a call request sending device configured to send a second call request to the IP telephone server, wherein the second call request includes both the IP telephone identification information received by the IP telephone identification information receiving device as a call request destination and the IP telephone identification information for the non-IP telephone device as a call request source; a response receiving device configured to receive a response in reply to the second call request; and a voice data transferring device configured to transfer voice data, which is sent from the call request source of the first call request or from the call request destination of the second call request, to the non-IP telephone device, and to transfer voice data sent from the non-IP telephone device to the call request source of the first call request or to the call request destination of the second call request on a condition that a call start operation is operated at the non-IP telephone device in response to the call request notice instruction sent by the notice instruction sending device or the response received by the response receiving device is a positive response.