JP3963814B2 - Base phone terminal device and slave phone terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an Internet telephone system that enables automatic call transfer from a master unit to a slave unit at a choice made on the termination side by using Internet telephony using the Internet. <P>SOLUTION: A telephone terminal device connected to the Internet has an automatic transfer function for a telephone call to a 2nd telephone terminal device by radio communication etc., and a decision means of deciding whether automatic transfer is possible. Namely, a main processing part 306 of the master unit 300 decides whether the ID of its slave unit is included in calling control information from an opposite-side master unit. When the IC is included, the call is automatically transferred to the slave unit 400 corresponding to the ID. When the ID is not included, the master unit makes a calling connection and the call is manually transferred to a slave unit at the calling source. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention realizes automatic call transfer from a parent device to a child device by selecting a destination in an Internet phone that makes a call using the Internet network.
[0002]
[Prior art]
Conventionally, when a call is transferred from a parent device of a telephone to a child device at home, the transfer is generally performed by manually pressing a transfer button.
[0003]
In ISDN, etc., there is also a service for automatically transferring a call according to specified identification information such as a sub-address. By registering the incoming telephone number and transfer destination in advance in the telephone, it can be transferred to other telephones and mobile phones according to the registered contents. Automatic transfer was also possible.
[0004]
Patent Document 1 discloses a system for notifying an incoming mail to a corresponding slave unit by associating a mail address of a transmission source with a slave unit identification number of an incoming notification destination.
[0005]
[Patent Document 1]
JP 2001-309072 A
[0006]
[Problems to be solved by the invention]
In the conventional method of transferring a call from a parent device to a child device, someone must manually perform a transfer operation every time an incoming call is received, or even when a telephone or service that allows automatic transfer is used. However, there is a problem that the user's work becomes complicated because an operation for manually registering with the telephone and a registration work with the telephone company have to be performed in advance.
[0007]
Therefore, the present invention provides an Internet telephone system that does not require a complicated operation and enables anyone to easily perform automatic transfer from a parent device to a child device.
[0008]
[Means for Solving the Problems]
In view of the above problems, the present invention has the following features.
[0009]
The invention of claim 1 relates to a base phone terminal device, comprising: a first communication means for communicating with its own handset phone terminal device; and another base phone terminal device via the Internet. A second communication means for performing communication, and a transmission means for transmitting identification information for identifying the own handset telephone terminal device to the other base phone terminal device .
[0019]
The features of the present invention will become more apparent from the following description of embodiments.
[0020]
  Note that “first communication means” and “communication means” in the claims correspond to the wireless processing units 302 and 402 and the antennas 301 and 401 in the embodiment. The “second communication means” in the claims corresponds to the communication control unit 308 in the embodiment. “Transmission means” in claimsIsCorresponding to the main processing unit 306 in the embodiment.
[0021]
However, the following embodiment is only one embodiment of the present invention. The definitions of the terms of the present invention or each constituent element are not limited to those described in the following embodiments.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0023]
FIG. 1 is a block diagram showing a configuration of an Internet telephone (hereinafter referred to as IP telephone) system showing an embodiment of the present invention. For the sake of convenience, FIG. 2 shows the parent device 101 and its child devices 102a and 102b, the communication partner parent device 201 and its child devices 202a and 202b.
[0024]
FIG. 2 is a block diagram showing the configuration of the slave unit and the master unit in the IP telephone system.
[0025]
With reference to FIG. 2, the configurations of base unit 300 (101, 201 in FIG. 1) and handset 400 (102a, 102b, 202a, 202b in FIG. 1) of the IP telephone system will be described.
[0026]
First, the configuration of base unit 300 will be described.
[0027]
Base unit 300 includes antenna 301, wireless processing unit 302, signal processing unit 303, codec processing unit 304, signal processing unit 305, main processing unit 306, memory 307, communication control unit 308, data input unit 309, and voice input unit 310. , And an audio output unit 311.
[0028]
The antenna 301 transmits and receives signals to and from the child device 400 via radio waves. The wireless processing unit 302 performs D / A conversion processing / A / D conversion processing, and modulation / demodulation processing according to the communication method to be used. The signal processing units 303 and 305 perform signal processing such as error correction processing. The codec processing unit 304 performs A / D, D / A conversion, and encoding / decoding processing on the audio data.
[0029]
The main processing unit 306 controls each processing unit, and also includes a telephone number and an IP address that are information for identifying the self and the communication partner, a wireless ID for identifying the self and the wireless communication partner, and various other information Has a memory 307 therein.
[0030]
Here, the information for specifying the communication partner and the communication partner may be in the form of a mail address in addition to the telephone number and the IP address as long as it is a format for specifying the communication partner.
[0031]
The wireless ID for the self-identification and the wireless communication destination is an ID for identifying a communicable partner, and is set by being shared by the parent device and the child device.
[0032]
For example, a group that can communicate with the parent device and the child device is set, a group ID is assigned to the group, and a unique ID can be assigned to each child device in the group. The master unit is specially set to “NULL”, and the master unit can perform wireless communication while identifying each slave unit having the same group ID.
[0033]
The communication control unit 308 performs communication control related to connection with the Internet network (public network). The data input unit 309 is used for input for instructing transfer to the slave unit. The voice input unit 310 inputs and processes the voice of the speaker (user), and then outputs voice data. The voice output unit 311 processes the voice data and outputs voice to the speaker.
[0034]
Next, the structure of the subunit | mobile_unit 400 is demonstrated.
[0035]
The subunit | mobile_unit 400 is comprised from the antenna 401, the radio | wireless process part 402, the signal process part 403, the main process part 404, the memory 405, the data input part 406, the audio | voice input part 407, and the audio | voice output part 408.
[0036]
Antenna 402 transmits and receives signals to and from base unit 300 via radio waves. The wireless processing unit 402 performs D / A, A / D conversion processing, modulation / demodulation processing according to the communication method to be used, and the like. The signal processing unit 403 performs signal processing such as error correction processing. The main processing unit 404 performs A / D conversion, D / A conversion of the audio signal, and control of each processing unit. In addition, a memory 405 is provided inside.
[0037]
This memory 405 provides an IP telephone service in addition to a telephone number and an IP address, which are information for specifying the self and the communication partner, a wireless ID for identifying the self and the wireless communication partner, and various other information. Provider information (for example, the addresses of the servers 10a and 10b shown in FIG. 1) is stored.
[0038]
The data input unit 406 includes a pen input unit and a key operation unit. The data input unit 406 can input an address of a communication partner terminal (anything that can specify a communication partner such as a telephone number, a mail address format, and various IDs) Used when entering commands. The voice input unit 407 inputs and processes the voice of the speaker (user), and then outputs voice data. The voice output unit 408 processes the voice data and outputs voice to the speaker.
[0039]
Next, call control will be described.
[0040]
Call control is executed at the time of call connection, and controls the communication path when performing communication such as a call, and establishes the communication path, connects / disconnects the communication, and communicates (codec method, uses it) Protocol, port number, etc.).
[0041]
Specifically, the establishment of a communication path with the other party on the Internet, for example, the server 10a of the IP telephone service provider with which Mr. A has contracted is contracted by Mr. B on behalf of Mr. A. The server 10b of the Internet telephone service providing company is searched to establish a communication path, and the call control data transmitted from the parent device 101 is communicated with the parent device 201 via this server 10b. This is the process of determining the codec to use. For this call control, SIP, H.I. Protocols such as H.323, MGCP, and MEGACO are known.
[0042]
In this call control, a call control message including a message header 501 and a message body 502 which is a main body of the message is used. FIG. 3 shows an example of a call control message.
[0043]
The message header 501 is basic control information in message communication, similar to basic information in communication processing and an e-mail header, and includes a sender, destination, message body type, and the like. A processing type 503 indicates processing performed with the telephone of the communication partner. A server address 504 indicates an address of a server of an internet telephone service provider.
[0044]
The transmission source information 505 is identification information of the terminal itself (anything can be used as long as the communication partner can be identified, such as a telephone number or a mail address format). The other party information 506 is identification information of a terminal to be a communication partner (anything can be used as long as the communication partner can be identified, such as a telephone number or a mail address format).
[0045]
The message body type 507 designates a description format for the message body, and is, for example, SDP (Session Description Protocol) or MIME. The message body size 508 is the size of the message body. The process identification number 509 is an identification number assigned to a series of related processes.
[0046]
In addition, information can be arbitrarily added to the message header. Further, the arrangement order of each information such as processing type and destination information can be arbitrarily changed.
[0047]
Next, the message body 502 will be described.
[0048]
A message body 502 indicates communication capability information of terminals, and is used when call control performs adjustment of whether communication is possible between communicating terminals. The media type 510 describes the type of media that performs communication such as Audio and Video. The communication port number 511 describes a port number for performing communication. The codec type 512 indicates a compression / decompression method used in communication.
[0049]
The self IP address 513 indicates the IP address of the IP telephone base unit. The self ID 514 indicates an ID assigned to each of the parent device or the child device of the IP phone. The other party's ID 515 indicates an ID assigned to the parent device or the child device of the IP telephone of the communication partner.
[0050]
In addition, information addition to the message body 502 can be arbitrarily performed, and the arrangement order of each information such as a media type and a communication port number can be arbitrarily changed.
[0051]
Next, the call operation of the IP phone base unit and handset will be described.
[0052]
<Example of a call that does not use the ID of the other handset>
A case will be described as an example where connection is made from the IP phone / slave unit 102a to the other party's IP phone / slave unit 202a.
[0053]
Referring to FIG. 1, a description will be given of a case where a voice call is made from a slave unit 102a owned by Mr. A to a slave unit 202a owned by Mr. C via the master unit 101, the public network, and the other party master unit 201. In this case, first, it is necessary to perform a call connection from the parent device 101 to the partner parent device 201.
[0054]
Hereinafter, description will be made with reference to the flowcharts of FIGS. 1, 2, and 10.
[0055]
When the telephone number of the partner base unit 201 (hereinafter referred to as the partner phone number) is input to the data input unit 406 of the slave unit 102a (400), a call connection (communication channel for a call) is established with the partner base unit. Process (described later) is started (S101).
[0056]
At this time, the input to the data input unit 406 is not limited to the telephone number of the other party, but may be in the form of an IP address or an e-mail address in addition to the telephone number as long as it is a format for specifying the communication partner. In the following description, a telephone number is used as an example.
[0057]
The other party telephone number can be input directly using the key operation unit disposed in the data input unit 406. For example, a telephone number book as shown in FIG. This can be done by selecting “Mr. C”.
[0058]
Here, a description will be given of call connection with the other party's master unit using various information corresponding to “Mr.
[0059]
The other party telephone number (+ 81-3-3456-7890) input from data input unit 406 is output to main processing unit 404. The main processing unit 404 reads a wireless ID for specifying its own parent device as a wireless communication partner from the memory 405, and converts it into communication partner telephone number data in combination with the partner telephone number. Specifically, the wireless ID is used as header information of a communication packet, the other party's telephone number is used as a data part, and the other party's telephone number data is used as communication.
[0060]
The communication partner telephone number data thus obtained is output to the signal processing unit 403. The signal processing unit 403 is a communication method (for example, Bluetooth, IEEE802.11a, IEEE802.11b, IEEE802.11e, IEEE802.11g, etc.) used for wireless communication with its own base unit 101. If necessary, it is converted into appropriate communication partner telephone number data by adding header information or an error correction code, etc., and output to the wireless processing unit 402.
[0061]
The wireless processing unit 402 performs modulation processing or the like according to the communication method to be used, and then transmits the communication partner telephone number data as radio waves through the antenna 401 (S102). This communication partner telephone number data is received by the wireless processing unit 302 through the antenna 301 of its own base unit 101 (S201).
[0062]
Radio processing section 302 of base unit 101 demodulates the received communication partner telephone number data in accordance with the communication method to be used, and outputs the result to signal processing section 303. The signal processing unit 303 extracts the other party telephone number and the wireless ID without error from the communication partner telephone number data using the error correction code, and outputs them to the main processing unit 306.
[0063]
The main processing unit 306 compares the input wireless ID with its own wireless ID stored in the memory 307, and executes a subsequent call control process if they match. On the other hand, if the two do not match, the connection is rejected, response data notifying that is output to the signal processing unit 303, and sent back to the child device 102a that is the transmission source via the wireless processing unit 302, This process ends.
[0064]
In the call connection process, the main processing unit 306 uses the other party's telephone number supplied from the slave unit 102a, its own telephone number and server address stored in the memory 307, its own IP address, etc., as call control data. Incorporate into. At this time, the other party's ID can be notified to the other party according to the intention of the calling speaker.
[0065]
For example, the parent device 101 issues an inquiry to the child device 102a as to whether or not to notify the partner of the ID of the child device (S203). In response to this, the user notifies the child device 102a and inputs an approval, which is transferred to the parent device 101 (S104). Accordingly, the ID of the slave unit is incorporated in the call control data (S205). The call control data generated in this way is output to the communication control unit 308 (S206).
[0066]
An example of data used for call control at this time is shown in FIG.
[0067]
The processing type “CALLING” of the message header indicates a call processing (for example, a process of making a call) of the processing identification number “10000”, and is “+ 81-3” which is the telephone number of the parent device 101 that is the transmission source. This means that a call is made from “312-3456” to “+ 81-3-3456-7890”, which is the telephone number of the master device 201 of the other party.
[0068]
The server address “10.123.456.789” indicates the address of the server 10a (“aaa.com”), which means that call control data is transmitted to this address, and “200BYTE” "" Indicates that the message body is described in "SDP".
[0069]
The message body means that the codec performs “Audio” communication of “G.711” through the communication port number “9000”. The IP address “10.123.000.100” indicates the IP address of the parent device 101 of itself.
[0070]
The ID “UserA-TEL-1” is an ID indicating the child device 102a that is itself, and is generated by the parent device 101 of the child device 102a. Using this ID, automatic transfer from the parent device 101 to the child device 102a is realized the next time a call is made from the child device 202a owned by Mr. C to the child device 102a owned by Mr. A.
[0071]
In the call control information shown in FIG. 4, the other party's ID is “NULL”. In this case, NULL indicates a state in which there is no data. Therefore, since the transfer partner cannot be specified by such call control information, automatic transfer from the partner master unit 201 to the slave unit is not performed. Can not. Details will be described later.
[0072]
Master device 101 stores in memory 307 a telephone number book such as shown in FIG. Here, the ID of Mr. A's child device 102a is “UserA-TEL-1”, and since this is the own child device, the telephone number is indicated as “NULL”.
[0073]
Note that this ID is generated by the parent device in response to an ID sending instruction (S104 in FIG. 10) from the calling child device when making a call from the child device, and stored in its own telephone number book.
[0074]
In addition, a simple security function can be realized by adding information specifying the valid period to this ID. For example, by deleting a corresponding ID after a specified period has elapsed, a function such as automatic transfer (described later) using this ID can be disabled.
[0075]
The communication control unit 308 adds an RTP / TCP / IP header or the like to the call control data, and performs call control with a communication partner via an interface with the Internet network such as an RJ45 modular interface to realize call connection. .
[0076]
Next, the operation on the receiving side will be described.
[0077]
Upon receiving the call control data, the partner base unit 201 stores the telephone number (+ 81-3-3123-4567) of the source base unit 101 and the ID (UserA-TEL-1) of the slave unit 102a in its own memory 307. ) Is stored (S301).
[0078]
When the communication path is established by the call control and the call connection is completed, the counterpart base unit 201 is called. Here, it is determined whether or not the ID assigned to the slave unit is set (S302).
[0079]
In this call control, since the ID assigned to the slave unit 202a of the counterpart master unit 201 is not used, a person who responds to the master unit 201 manually performs an operation for transferring from the data input unit to the slave unit 202a. (S303).
[0080]
Through the above processing, communication between the child device 102a and the child device 202a is started.
[0081]
When transfer is performed from the parent device 201 to the child device 202a, the telephone number of the caller parent device 101 stored in the memory 307 of the parent device 201 and the child child device 202a are transmitted from the counterpart parent device 201 to the child device 202a prior to the call. The ID of the machine 102a is transmitted. At this time, data including the telephone number of the caller parent device 101 and the ID of the child device 102a is also created in its own phone book (S305). That is, the main processing unit 306 of the counterpart base unit 201 extracts the telephone number of the source base unit 101 and the ID of the slave unit 102a stored in the memory 307 by the transfer operation from the data input unit 309, and performs signal processing. The data is output to the unit 303.
[0082]
The signal processing unit 303 uses the master unit 201 and the slave unit for the wireless ID of the master unit, the telephone number of the transmission source master unit 101, and the ID of the slave unit 102a read from the memory 307 via the main processing unit 306. Depending on the communication method used in wireless communication with 202a, header information and error correction codes are added to convert the data into appropriate communication telephone number data, and this is output to the wireless processing unit 302. .
[0083]
The wireless processing unit 302 performs modulation processing or the like according to the communication method using the wireless processing unit 302, and then transmits the communication telephone number data to the slave unit 202a as a radio wave through the antenna 301. Such data is received by the wireless processing unit 402 through the antenna 401 of the slave unit 202a. Radio processing section 402 performs demodulation processing on the received communication telephone number data in accordance with the communication method to be used, and outputs the result to signal processing section 403.
[0084]
The signal processing unit 403 extracts the wireless ID from the communication telephone number data and outputs it to the main processing unit 404. The main processing unit 404 compares the input wireless ID with the wireless ID stored in the memory 405, and if both match, instructs the signal processing unit 403 to process communication telephone number data.
[0085]
Upon receiving the instruction, the signal processing unit 403 performs error correction on the received communication telephone number data, and extracts only the telephone number of the parent device 101 and the ID of the child device 102a from the communication telephone number data without any error. The data is output to the processing unit 404. The main processing unit 404 registers the ID of the child device 102a in the telephone book using the telephone number of the caller parent device 101 and the ID of the child device 102a (S401).
[0086]
FIG. 7 shows a telephone directory before the additional registration of the counterpart child device 202a. FIG. 8 shows the telephone directory after additional registration. A similar phone book is also created and stored in the memory 307 of the parent device 201.
[0087]
Subsequently, the user speaks to the voice input unit 407. The processing at this time is the same as the processing up to the signal processing unit 303 at the time of call connection. However, the data handled at this time is different (S402).
[0088]
That is, the spoken voice is subjected to A / D conversion or the like by the main processing unit 404 and then the header information or the signal processing unit 403 according to the communication method used for wireless communication with the base unit 101. An error correction code is added or the like to be converted into appropriate speech signal data for communication and output to the wireless processing unit 402. The wireless processing unit 402 performs modulation processing or the like according to the communication method to be used, and then transmits communication audio data as radio waves through the antenna 401.
[0089]
The communication audio data is received by the wireless processing unit 302 through the antenna 301 of the base unit 101, processed by the signal processing unit 303, and then output to the codec processing unit 304.
[0090]
In the codec processing unit 304, a predetermined audio codec system (for example, a codec used in a communication system such as PDC, PHS, CdmaOne, W-CDMA, Cdma4070, or G.711, G.729, G.729A, G723. 1, G.726, G.722.1, AMR-WB, etc.). Of course, it may be left uncompressed.
[0091]
The audio data processed by the codec processing unit 304 is converted into appropriate audio data by adding header information and an error correction code by the signal processing unit 305, and is output to the main processing unit 306. Thereafter, the main processing unit 306 converts the audio data into a data structure (for example, an RTP header, a UDP or TCP header, an IP header, etc. is added) for transmission / reception on the Internet.
[0092]
The converted data is output to the Internet network through the communication control unit 308 and transmitted to the parent device 201 that is the other party of the call.
[0093]
As described above, the transmission of the voice data after the communication path is established is performed via the parent device 101, but the reception of the voice data from the other party is also performed via the parent device 101. That is, main processing section 306 of base unit 101 removes the RTP header, UDP or TCP header, IP header, etc. from the audio data received through communication control section 308 and outputs the result to signal processing section 305.
[0094]
The signal processing unit 305 extracts only an audio part having no error from the header information and the error correction code in accordance with the communication method used in the wireless communication with the child device 102 a and outputs the extracted voice part to the codec processing unit 304. . The codec processing unit 304 performs decompression processing by a decompression method corresponding to a predetermined audio codec, and then outputs this to the signal processing unit 303.
[0095]
The signal processing unit 303 performs communication used in wireless communication with the slave unit 102a for the audio data and the wireless ID for specifying the wireless communication partner read from the memory 307 via the main processing unit 306. Depending on the system, header information and error correction code are added to convert the data into appropriate communication audio data, and the result is output to the wireless processing unit 302.
[0096]
The wireless processing unit 302 performs modulation processing or the like according to the communication method to be used, and then transmits communication audio data as radio waves to the child device 102a through the antenna 301. Such data is received by the wireless processing unit 402 through the antenna 401 of the slave unit 102a. The wireless processing unit 402 performs demodulation processing on the received communication audio data according to the communication method to be used, and outputs it to the signal processing unit 403.
[0097]
The signal processing unit 403 extracts the wireless ID from the communication audio data and outputs it to the main processing unit 404. The main processing unit 404 compares the input wireless ID with the wireless ID stored in the memory 405, and if they match, instructs the signal processing unit 403 to process the communication audio data. Upon receiving the instruction, the signal processing unit 403 performs error correction on the received communication audio data, extracts only the audio part without error from the communication audio data, and outputs the extracted audio data to the main processing unit 404. Thereafter, the audio D / A converted by the main processing unit 404 is output from the audio output unit 408.
[0098]
On the other hand, when the input wireless ID and the wireless ID stored in the memory 405 do not match, this process ends.
[0099]
<Example of a call using the ID of the other handset>
Next, a description will be given of a process for making a call from the slave device 202a owned by Mr. C to the slave device 102a owned by Mr. A using the registered ID.
[0100]
First, similarly to the above-described <Example of call without using ID of partner phone>, call connection from slave device 202a to partner master device 101 is performed before voice call.
[0101]
The other party is specified by selecting “Mr. A” from the telephone number book shown in FIG. 8 when inputting the telephone number of the child device 102a from the data input unit 406 of the child device 202a using the ID. . At this time, call control data as shown in FIG. 9 is created as call control data used for call control.
[0102]
The counterpart base unit 101 that has received this call control data (S301 in FIG. 10) refers to the ID of the slave unit in the telephone number book (shown in FIG. 6) stored in the memory 307 (S302). Transfer is performed to the child device 102a that is the same as the “User A-TEL-1” that is the ID of the other party in the control data (S304). As a result, the call connection between the slave unit 202a and the slave unit 102a is completed, and a call can be made.
[0103]
The subsequent operations are the same as in the above <Example of a call not using the ID of the other party's handset>.
[0104]
Needless to say, the present invention is not limited to the above-described embodiment, and various other modifications are possible.
[0105]
For example, in the above-described embodiment, the case where a call is made with the other party has been described as an example. However, instead of this, data communication with the other party can also be performed.
[0106]
In the above embodiment, the communication between the parent device and the child device is wireless communication, but a wired communication method can be adopted instead.
[0107]
In addition, various modifications can be made as appropriate within the scope of the technical idea of the present invention.
[0108]
【The invention's effect】
According to the present invention, no complicated operation is required, and anyone can easily perform automatic transfer from the parent device to the child device, thereby further improving the convenience of the user.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of an Internet telephone system according to an embodiment.
FIG. 2 is a block diagram showing a configuration of a terminal of the Internet telephone system according to the embodiment.
FIG. 3 is a diagram showing a data format used in call control.
FIG. 4 is a diagram illustrating an example of a data format used for call control.
FIG. 5 is a diagram illustrating an example of management information related to a call.
FIG. 6 is a diagram illustrating an example of management information related to a call.
FIG. 7 is a diagram illustrating an example of management information related to a call.
FIG. 8 is a diagram illustrating an example of management information related to a call.
FIG. 9 is a diagram illustrating an example of a data format used for call control.
FIG. 10 is a flowchart showing processing of the Internet telephone system according to the embodiment.
[Explanation of symbols]
301 Antenna
302 wireless processing unit
306 Main processing unit
307 memory
308 Communication control unit
401 Antenna
402 Wireless processing unit
404 Main processing section
405 memory

Claims (1)

First communication means for communicating with its own handset telephone terminal device;
A second communication means for communicating with another base phone terminal device via the Internet;
A base phone terminal device comprising: transmitting means for transmitting identification information for identifying the self handset phone terminal device to the other base phone terminal device.

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