Special line modem for digital users and its method for treating incoming telephone call
A technology of digital subscriber line and modem, which is applied in the direction of telephone communication, electrical components, subscriber special services, etc., and can solve problems such as inability to provide users and inconvenience to users
Inactive Publication Date: 2006-12-06
HON HAI PRECISION IND CO LTD
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Problems solved by technology
[0003] However, the call quality of the Voice over Internet protocol telephone is not as stable as that of the old-fashioned telephone service telephone, and in the devices that provide call services on the market, the same telephone cannot handle incoming calls from the public switched telecommunications network and the Voice over Internet protocol telephone network, so it cannot provide The user uses the same telephone set to answer the public switched telecommunications network call and the voice over Internet protocol call respectively, but must use two different telephone sets to realize it, which will cause inconvenience to the user
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[0021] Figure 1a and 1b A flowchart showing the processing of incoming calls by the DSL modem of the embodiment of the present invention. Please also refer to Figure 1a and 1b , in this embodiment, the DSL modem will first receive a voice over internet protocol call, and when the DSL modem receives a PSTN call and a voice over internet protocol call at the same time, the switching device will The telephone set is connected to a Voice over Internet Protocol telephone network. As shown in the figure, at first, the DSL modem receives a voice over Internet protocol incoming call (step S101), then, the detecting device in the DSL modem can detect whether the corresponding telephone set is in an idle state (on-hook) (step S102). When the corresponding telephone set is not in the idle state, that is, when the corresponding telephone set is in a busy line state (off-hook), for example, the user is using the public switched telecommunications network to make a call, the DSL mode...
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A method for processing incomings by a digital user special line modem is used in a digital user special line modem connected to public exchange telecommunication network and an internet phonetic protocol phone network. Firstly, utilizing the digital user special line modem to receive an incoming of public exchange telecommunication network or an incoming of internet phonetic protocol. A switch device is controlled to connect the phone set connecting with the modem to the public exchange telecommunication network if the incoming is from it. When the received incoming is from the internet phonetic protocol, the switch device is controlled to connect the phone set to it.
Description
technical field [0001] The present invention relates to a digital subscriber line modem, and in particular proposes a method for handling incoming calls, enabling the digital subscriber line modem to handle incoming calls from a public switched telecommunication network and a voice over Internet protocol telephone network, and by using the method, the present invention The invention of the DSL modem allows users to receive PSTN and Voice over Internet Protocol calls. Background technique [0002] With the development of communication systems, many communication technologies are currently used to provide call services, including old-fashioned telephone services and voice over Internet protocol services. The old-fashioned telephone service has been widely used in daily telephone communication. When the telephone is connected to the Public Switched Telephone Network (PSTN, Public Switched Telephone Network), users can enjoy the old-fashioned telephone service. Voice over Inter...
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IPC IPC(8): H04M11/06H04M3/42H04L29/02
Inventor 林树根陈明堦叶景茂
Owner HON HAI PRECISION IND CO LTD