TWI454127B - Bridging method for un-registered terminal to make ip phone call and application program for the same - Google Patents

Description

Bridging method and application for making unregistered terminals to make network calls

The present invention relates to Internet telephony, and more particularly to a method for enabling a terminal that is not registered with a VoIP server to establish a network bridged call to use the VoIP service.

Telephones have always been an important tool for communication in the general public.

In recent years, with the development of the Internet, there has been a considerable impact on the method of communication. Compared with the connection and maintenance of telephone lines, the popularity of the Internet is faster and more convenient. In the distant two places, it is necessary to make a number of calls before the call between the two telephones can be established. However, through the Internet, the connection between the two places can be established directly and very quickly. .

Therefore, in recent years, the market has gradually replaced traditional telephones with IP phones. In addition to the maintenance of the Internet is easier than the traditional telephone lines, there is no need to pay extra for making Internet calls over the Internet. The cost of many users has used VoIP to replace traditional phones in order to save on the cost of telephone calls.

However, the general VoIP phone is the same as the traditional telephone phone, usually set in A fixed position and will not be moved. When the user is away from the VoIP phone, the incoming call of the VoIP phone cannot be answered by the user; in addition, when the user wants to make a call, the user needs to go back to the VoIP phone to be able to It is quite inconvenient to use this VoIP phone to make Internet calls.

Taking the VoIP phone on the desk as an example, when the user leaves the desk, the incoming call of the VoIP phone cannot be answered, which may cause a missed connection. Moreover, when the user leaves the desk, if he wants to make an emergency call, he can only use his own mobile phone to make a call, which will require additional telephone charges.

Moreover, if the user wants to use his mobile phone to make a call or send an e-mail to contact the customer when he leaves the desk, but the customer's contact information is stored in the VoIP phone, the user cannot contact the emergency phone. Customers, the powerful memory function of the VoIP phone will be ineffective.

Furthermore, a general electronic device, such as a mobile phone, a pen-type computer, or a tablet computer, can be registered with a network telephone server after installing a communication software, whereby the electronic device can pass The communication software makes a network call, and the remote network phone can also make a call to the electronic device. However, in a typical enterprise or company, its switch may not be able to support this function, or it may need additional investment equipment to support it. In addition, it may be because the management level is more complicated and not accepted by the company, or there are many restrictions on the use, which will cause great inconvenience to users.

Therefore, the market should put forward a new set of usage methods, which can develop the existing VoIP phone functions to the extreme, so as to improve the practicability of VoIP.

The main purpose of the present invention is to provide a bridging method for making an unregistered terminal set to make a network call, so that the terminal device can directly register with the VoIP server without bridging to other registered VoIP phones. To establish an IP call bridge to make and receive Internet calls.

To achieve the above object, the present invention installs a bridge software in an unregistered terminal, and an unregistered terminal searches for a registered network phone in the network, and selects one of them as a bridged network phone. The unregistered terminal becomes a proxy device for this bridged network call. The unregistered terminal can transmit control commands to the bridged network telephone through the bridge software, and when the bridged network telephone establishes a call connection with a remote network telephone, the unregistered terminal can receive and transmit through the bridged network telephone. A media packet to talk to this remote network phone.

The effect achieved by the present invention in comparison with the prior art is that the terminal device held by the user, such as a mobile phone, a notebook computer, a tablet computer, and the like, can be passed through without registering with the VoIP server. The selected bridged network phone is used to make a network call, and the terminal can also be used to answer the incoming call of the bridged network phone. In this way, not only can the utility of the VoIP function be improved, but also the need for the phone not to be missed.

1‧‧‧Bridge VoIP

2‧‧‧Remote Internet Phone

3‧‧‧Unregistered terminal

30‧‧‧Bridge software

4‧‧‧Server

P1‧‧‧Control Instructions

P2‧‧‧Media Packet

S30~S40‧‧‧Steps

The first figure is a system architecture diagram of a preferred embodiment of the present invention.

The second figure is a schematic diagram of a call connection according to a preferred embodiment of the present invention.

The third figure is a bridging flow diagram of a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will be described in detail with reference to the drawings.

Referring first to the first figure, a system architecture diagram of a preferred embodiment of the present invention is shown. The present invention is mainly applied to a plurality of network telephone telephones, wherein each of the network telephones (for example, the bridged network telephone 1 and the remote network telephone 2 in the figure) are mainly registered network telephones. Each registered VoIP phone is connected to a VoIP server 4 via a network system, and is registered with the VoIP server 4, and a call can be established through the VoIP service. Connected.

The above-mentioned VoIP server 4 can be mainly a Session Initiation Protocol (SIP) server, or each of the VoIP phones 1, 2 can be connected to one of the internal network switches (IP PBX) through the network system. ) and connected to a shared backend server via the network switch, which is not limited.

In this embodiment, an electronic device, such as a mobile phone, a desktop computer, a notebook computer, a tablet computer, or a personal digital assistant, may be through a network system different from the above, such as Wi-Fi, Bluetooth, and ZigBee and the like are connected to the bridged network telephone 1. The electronic device is mainly an unregistered terminal device 3 that is not registered with the network telephone server 4 and cannot perform the network telephone function.

The main technical feature of the present invention is that the unregistered terminal device 3 is provided with a bridge software 30, and the unregistered terminal device 3 can execute the bridge software 30 to connect one of the connection ranges supported by the network system. The network telephone 1 is bridged to establish an internet call bridge with the remote network telephone 2 of the destination through the bridge network telephone 1, for making a call/answer service of the network telephone.

The unregistered terminal 3 mainly transmits a control command P1 to the bridged network telephone 1 to control the operation of the bridged network telephone 1. The control command P1 may include the phone number of the remote network phone 2 to be dialed, and make a call and send a simple message. Commands such as sending messages, sending emails, and querying phone books. Moreover, the control command P1 can be, for example, a remote procedure call (RPC) control command, but cannot be limited.

The bridged network telephone 1 mainly establishes a call connection with the remote network telephone 2 of the destination, and transmits a media packet P2 to each other to make a call. In this embodiment, the bridged network telephone 1 directly transmits the media packet P2 to the unregistered terminal device 3, so that the unregistered terminal device 3 generates a multimedia material after decompression, and plays it; The bridged network phone 1 can also decompress the media packet P2, and transmit the multimedia data generated after decompression to the unregistered terminal device 3 for playback, which is not limited.

The media packet P2 may be, for example, a Real-time Transport Protocol (RTP) packet, but is not limited thereto. And the multimedia data generated by the decompressing of the media packet P2 is mainly a language data and/or image data, and the bridge network phone 1 and the remote network phone 2 can support voice transmission and/or video. Depending on the transmission function, it should not be limited.

In this embodiment, a single unregistered terminal 3 can bridge a single bridged network telephone 1 to become a proxy device for the bridged network telephone 1, so that when the bridged network telephone 1 is When there is an incoming call, both the bridged network telephone 1 and the unregistered terminal 3 will sound, and the user can choose to use the bridged network telephone 1 to answer or use the unregistered terminal 3 to answer. Moreover, when the user wants to make a network call, the bridged network phone 1 can be directly used to dial, or the user can operate the unregistered terminal device 3 to bridge the bridged network phone 1 to dial the network. Road call. Moreover, if the bridged Internet phone 1 stores a large amount of information such as a telephone number or an email address, the user can operate the unregistered terminal 3 to bridge to the Bridge the Internet phone 1 and check for information such as phone numbers or emails.

Please refer to the second figure at the same time, which is a schematic diagram of a call connection according to a preferred embodiment of the present invention. First, both the bridged network telephone 1 and the remote network telephone 2 need to register with the network telephone server 4, and the network telephone server 4 also needs to confirm the bridged network telephone 1 and the remote network. The registration operation of the road phone 2 (step S10). On the other hand, the unregistered terminal 3 needs to select one of the registered network phones as the bridge network before the connection of the network system (for example, the intranet of the company). The telephone 1 and the proxy pairing are performed, and the bridged network telephone 1 also needs to confirm the proxy action of the unregistered terminal 3 (step S12).

When the remote network phone 2 makes a call to the bridged network phone 1, the network phone server 4 sends an invitation signal (Invite) to the bridged network phone 1 and receives the bridged network phone 1 A confirmation signal to the invitation (step S14). After receiving the invitation, the bridged network telephone 1 simultaneously sends an incoming call notification to the unregistered terminal set 3 (ie, the proxy device) (step S16), and receives an instruction to reply to the call sent by the unregistered terminal set 3 ( Step S18). Then, the bridged network telephone 1 sends a reply signal (ACK) to the network telephone server 4, and the network telephone server 4 establishes the bridge between the network telephone 1 and the remote network telephone 2. The call is connected (step S20).

After the step S20, the remote network phone 2 successfully establishes a call connection with the bridged network phone 1, and can immediately transmit the media packet P2 (step S22), and the unregistered terminal device 3 can pass the bridge network. The telephone number 1 establishes a network call bridge with the remote network telephone 2 (step S24). For example, in this embodiment, the user can use a mobile device having a network function but not registered with the network telephone server 4 (ie, the unregistered terminal device 3), through the IP of the present invention. Call bridge mechanism, talking to the remote network phone 2, and no need to pay Any call charges.

Finally, please refer to the third figure, which is a bridging flowchart of a preferred embodiment of the present invention. If the bridging method of the present invention is to be performed, an application (ie, the bridging software 30) must be installed in the unregistered terminal device 3, so that the unregistered terminal device 3 can search the network through the bridging software 30. At least one registered network phone in the system (step S30), and one of the bridge software 30 is selected as the bridge network phone 1 (step S32). Each of the registered Internet phones mentioned above has already registered with the VoIP server 4, and can make/receive an VoIP service.

After the unregistered terminal 3 selects the bridged network telephone 1, the bridged network telephone 1 can be communicated with the bridged network telephone 1 to become the proxy device of the bridged network telephone 1 (step S34). When the unregistered terminal 3 becomes the proxy device of the bridged network telephone 1, the unregistered terminal 3 can transmit the control command P1 to the bridged network telephone 1 (step S36) to control the bridged network. Phone 1. The control command P1 may be an instruction to make a network call, query a phone book, send a short message, and send an email, and the control command P1 includes at least a phone number of the remote network phone 2 of the destination. But not limited.

When the user wants to make a network call to the remote network phone 2 of the destination, or the remote network phone 2 makes a call to the bridged network phone 1, the bridge network phone 1 and the remote network The telephone 2 establishes a call connection by the steps in the second figure (step S38), and transmits the media pack P2 to each other. Finally, the unregistered terminal device 3 transmits the media packet P2 to the remote network phone 2 through the bridge network phone 1 (step S40) to establish an IP call bridge and make a call. connection.

It is worth mentioning that, in step S40, the media packet P2 is first transmitted by the remote network phone 2 to the bridged network phone 1, and the bridged network phone 1 transmits the media packet P2 to the unregistered The terminal device 3 finally decompresses the media packet P2 by the unregistered terminal device 3, and plays the multimedia material generated after decompression. Furthermore, after the bridged network phone 1 receives the media packet P2, the media packet P2 is directly decompressed, and the multimedia data generated after the decompression is transmitted to the unregistered terminal device 3 for playback. , not limited.

The multimedia material may be voice data or video data, and the user may perform a voice call and/or an image call with the remote network phone 2 through the transmission of the media packet P2 and the playing of the multimedia data.

In this embodiment, the unregistered terminal device 3 mainly needs to install an application (ie, the bridge software 30). After the unregistered terminal device 3 loads the application and executes, the method of the present invention can be executed. The bridging method, the bridging method mainly includes: a) the unregistered terminal device 3 searches for at least one registered network phone in the network system through the application, wherein each of the registered network phones has been sent to the network The road phone server 4 registers; b) selects one of the registered network phones as one of the bridged network phones 1; c) the unregistered terminal 3 communicates with the bridged network phone 1 through the application To become the proxy device for the bridged network telephone 1; d) the bridged network telephone 1 establishes a call connection with the remote network telephone 2, wherein the remote network telephone 2 has addressed the network telephone server 4 Registration; e) The unregistered terminal 3 transmits the media packet P2 to the remote network telephone 2 via the bridged network telephone 1.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent changes to the scope of the present invention are included in the scope of the present invention. Bright.

S30~S40‧‧‧Steps

Claims (10)

A bridging method for an unregistered terminal to make a network call is applied to an unregistered terminal, wherein a bridge software is installed in the unregistered terminal, and the bridging method for the unregistered terminal to make a network call includes : a) the unregistered terminal searches for at least one registered network phone in the network system through the bridge software, wherein each of the registered network phones has been registered with the network phone server; b) selecting a registered network phone as a bridged network phone; c) the unregistered terminal device communicates with the bridged network phone through the bridge software, thereby becoming a proxy device for the bridged network phone, thereby When the bridged network telephone has an incoming call, the bridged network telephone and the unregistered terminal will both ring; d) the bridged network telephone establishes a call connection with a remote network telephone, wherein the remote network telephone The VoIP server has been registered; and e) the unregistered terminal transmits a media packet with the remote network phone through the bridged network phone. The method for bridging an unregistered terminal device to make a network call according to claim 1, further comprising the step f: the unregistered terminal device transmitting a control command to the bridged network phone, wherein the control command at least includes the The phone number of the remote internet phone. The method for bridging an unregistered terminal device to make a network call according to claim 2, wherein the control command is a Remote Procedure Calls (RPC) control command. The method for bridging an unregistered terminal device to make a network call according to claim 1, wherein the media packet is a Real-time Transport Protocol (RTP) packet. The method for bridging an unregistered terminal device for making a network call according to claim 1, wherein the unregistered terminal device is one of a mobile phone, a desktop computer, a notebook computer, a tablet computer, and a personal digital assistant. Electronic device. The method for bridging an unregistered terminal device to make a network call according to claim 1, wherein in the step a, the network system is at least one of Wi-Fi, Bluetooth, and ZigBee. The method as claimed in claim 1, wherein the step e further comprises: e1) the remote network phone transmits the media packet to the bridged network phone; e2) step e1 After the bridged network phone transmits the media packet to the unregistered terminal device; and e3), after step e2, the unregistered terminal device decompresses the media packet to play the multimedia material generated after decompression. The method as claimed in claim 1, wherein the step e further comprises: e1) the remote network phone transmits the media packet to the bridged network phone; e2) step e1 After that, the bridged network phone decompresses the media packet; and e3) after step e2, the bridged network phone transmits the multimedia data generated after decompression to the unregistered terminal to play. The method for bridging an unregistered terminal device to make a network call according to claim 7 or 8, wherein the multimedia material is voice data or video data. An application stored in an unregistered terminal (Application Program, AP), when the unregistered terminal is loaded into the application and executed, a bridging method for making an unregistered terminal to make a network call can be performed, and the bridging method for the unregistered terminal to make a network call includes : a) the unregistered terminal searches for at least one registered network phone in the network system through the application, wherein each of the registered network phones has been registered with the network phone server; b) selecting a registered network phone as a bridged network phone; c) the unregistered terminal communicates with the bridged network phone through the application, thereby becoming a proxy device for the bridged network phone, thereby When the bridged network telephone has an incoming call, the bridged network telephone and the unregistered terminal will both ring; d) the bridged network telephone establishes a call connection with a remote network telephone, wherein the remote network telephone The VoIP server has been registered; and e) the unregistered terminal transmits a media packet with the remote network phone through the bridged network phone.