WO1998041042A1 - Private branch exchange - Google Patents
Private branch exchange Download PDFInfo
- Publication number
- WO1998041042A1 WO1998041042A1 PCT/JP1998/001059 JP9801059W WO9841042A1 WO 1998041042 A1 WO1998041042 A1 WO 1998041042A1 JP 9801059 W JP9801059 W JP 9801059W WO 9841042 A1 WO9841042 A1 WO 9841042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extension
- information
- calling
- line
- extension terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/72—Finding out and indicating number of calling subscriber
- H04Q3/74—Identification of subscriber calling from a party-line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2242/00—Special services or facilities
- H04M2242/22—Automatic class or number identification arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42025—Calling or Called party identification service
- H04M3/42034—Calling party identification service
- H04M3/42042—Notifying the called party of information on the calling party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42025—Calling or Called party identification service
- H04M3/42034—Calling party identification service
- H04M3/42059—Making use of the calling party identifier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
- H04M3/42331—Direct inward dialling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1309—Apparatus individually associated with a subscriber line, line circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13091—CLI, identification of calling line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13095—PIN / Access code, authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13103—Memory
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13106—Microprocessor, CPU
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13152—Callback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13175—Graphical user interface [GUI], WWW interface, visual indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13204—Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13216—Code signals, frame structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1322—PBX
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13274—Call rejection, call barring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Definitions
- the present invention relates to a private branch exchange having a calling number notification function and a calling number notification rejection function or a connection destination number notification function and a connection destination number notification rejection.
- the Integrated Services Digital Network defines a calling number notification function and a called number rejection function, and exchanges with the function of notifying the calling number have already been developed.
- the calling number notification function is provided for the purpose of identifying the person who received the call from the caller and calling back using the number as necessary.
- the calling number provided together with the call setup signal at the time of originating a call is to be verified on condition that the call can be returned. If it is determined by the network verification that the calling party number is not appropriate, the network can replace the calling party number with an appropriate calling party number and transmit it to the partner device. Calling numbers in this network are managed for each interface (station line or multiple station lines that can be controlled by one control channel).
- FIG. 1 a data structure as shown in FIG. 1 is employed.
- whether or not the calling party number is notified is determined by referring to the calling party number information element identifier of octet 1 (8-bit data) to see if there is any calling party number data. It is configured to read calling number data from. In this way, the calling number is notified to the other party.
- the calling number data of OCTET4 is character string data.
- FIG. 2 schematically shows the calling number process 40 in the conventional private branch exchange.
- the transmission signal 41 from the extension may be an analog signal or a digital signal depending on the type of extension.
- Processing 43 for associating the calling number 42 with the outgoing signal 41 is performed by the calling number 42 corresponding to this extension held inside the private branch exchange.
- the correspondent node 4 6 has been made to receive the call via the digital total mono- bis network includes an indicator 4 7.
- the private branch exchange upon receiving the outgoing signal 41 from the extension, the private branch exchange associates the outgoing number 42 corresponding to this extension held internally with the outgoing signal 41 and sends the outgoing signal 44 to the network. Include Calling Number 45 when you call.
- the other device 46 receiving this call displays the calling number on its display 47 to know who the caller is. Also, call back using this number.
- the extension is an extension corresponding to a digital integrated service network, the calling number may be provided from the extension in the outgoing signal 41.
- the calling number 45 is verified by the network as to whether it matches the contracted number, etc., and if they do not match, the network contracts. This means that the above numbers can be replaced.
- a service called direct dial-in that determines the extension to receive based on the contents of the called number information element included in the incoming call setup signal is also provided. I have.
- FIG. 3 schematically shows a direct dial-in process 50 in a conventional private branch exchange.
- the called number conversion table 51 converts a called number into an extension number for direct dial-in.
- the destination number conversion table 51 is provided for each interface (a station line or a plurality of station lines that can be controlled by one control channel).
- the incoming signal 52 from the network is called a call setup in the digital integrated services network and includes the called number 53.
- the extension number 54 of the incoming call ⁇ fe is obtained.
- the incoming signal 55 to the extension number 54 may be an analog signal or a digital signal depending on the type of extension.
- the private branch exchange uses the called number conversion table 51 stored internally based on the called number 53 included in the received signal, and uses the called number conversion table 51 as a destination.
- the extension number 5 4 is obtained and the incoming signal 55 is transmitted. This connects the call to the extension corresponding to the called number.
- the private branch exchange usually accommodates extension terminals having a destination number equal to or larger than the destination number that can be received from the network, so that all extensions can be automatically received by specifying the destination number.
- extension terminals that cannot directly receive calls from the digital integrated service network.
- a calling number information element that can specify the extension cannot be transmitted to the network because the call cannot be returned.
- the calling number is supplemented by the network, but in the case of a private branch exchange, the supplemented number cannot call back to the extension that actually originated the call.
- a caller ID notification rejection should be sent out to the network to prevent the caller ID from being provided to the other terminal, but this has not been done.
- a callable number that can be called back is usually set in the extension terminal or the private branch exchange in advance.
- the extension always selects a specific office line for transmission, if this calling number is set to an appropriate one, the network will pass the network verification and will be transmitted to the other party's terminal.
- the line selection function of selecting the cheapest line or selecting a line that is vacant when a certain line is busy. If the extension selects a line different from the normal line, the calling number that is appropriate for the normally selected line will be judged to be invalid by the network verification for the different line, and the default number will be used by the network. Is complemented and transmitted to the partner terminal.
- the present invention provides a truly recallable calling number, and if a recallable calling number cannot be provided, explicitly notifies the network of the rejection of the calling number notification.
- Another object of the present invention is to provide a private branch exchange that suppresses a network from supplementing an invalid calling number in a call back.
- the private branch exchange accommodates at least an extension terminal, connects the extension terminal to a communication network, transmits a call to the communication network including information on a calling number when a call is made from the extension terminal, and If information about the called number is included when the call is received, a means for making the extension terminal corresponding to the called number receive a call, and information about the predetermined number that has been confirmed in advance to function as the called back number.
- a predetermined number corresponding to the calling number received from the extension terminal or the extension number corresponding to the extension number is received by using the information stored in the storage means when receiving from the extension terminal.
- the same configuration can be adopted when the line terminal answers the incoming call.
- means for accommodating at least the extension terminal and connecting the extension terminal to the communication network means for transmitting to the communication network including information on the connection destination number when the extension terminal responds to the incoming call, If information about the appetizer number is included when an incoming call is received, means for receiving an incoming call to the extension terminal corresponding to this called number and information about a predetermined number that is confirmed in advance to function as a called back call number is stored.
- the extension terminal When the extension terminal responds to the incoming call, using the information stored in the storage means, the predetermined number corresponding to the connection destination number received from the extension terminal or the connection destination number corresponding to the extension number Determining means for determining whether or not the given number is obtained; and when the determining means determines that the called number is obtained, the predetermined number is used as a connection destination number. And means for transmitting to the communication network, including information about the connected number to the response information. .
- a means for notifying the communication network of the rejection of the prior number notification is further provided. With this configuration, a calling number (connection destination number) that can be truly called back can be provided to the other terminal.
- Preferred embodiments of the private branch exchange of the present invention are as follows.
- the storage means stores called number information as the predetermined number, and information for converting the called number information into a corresponding extension number or called number of a called party.
- the extension terminal makes a call (the extension terminal responds to the incoming call)
- the calling number (connection destination number) received from the extension terminal or the calling number corresponding to the extension number is used by using the information stored in the storage means. To determine whether the called number corresponding to (destination number) can be obtained.
- Means for notifying the communication network of a calling number (connection destination number) notification rejection is further provided.
- Such a configuration is practically advantageous because existing storage means can be used to provide a new storage means.
- the storage means stores information on a calling number (destination number) permitted in the communication network as the predetermined number, and the determining means makes a call from the extension terminal (when the extension terminal receives a call, Response), the calling number (connection destination number) received from the extension terminal or the calling number (connection destination number) corresponding to the extension number is permitted in the communication network using the information stored in the storage means. Judge whether it is a number (connection destination number).
- the calling number (connected number) received from the extension terminal by the determining means or the called number corresponding to the calling number (connected number) corresponding to the extension number is not an allowable calling number (connected number).
- a calling number (connection destination number) is received by the determination means from the leased line.
- the transmission unit determines whether a destination number corresponding to a number (destination number) or a calling number (destination number) corresponding to the leased line is obtained, and the transmitting unit determines that the destination number is obtained by the determination unit. If it is determined, the calling number (connected number) corresponding to the calling number (connected number) received from the extension terminal or the calling number (connected number) corresponding to the extension number is set as the calling number (connected number).
- Information about the calling number (connection destination number) must be included in outgoing information and transmitted to the communication network.
- a calling number that can be truly called back can be extracted with a simple configuration, and if a calling number that can be called back cannot be extracted, the calling number that cannot be called back is notified to the partner terminal. Can be prevented beforehand.
- the office line selection function of the private branch exchange even when an extension number is explicitly associated with each extension number and transmitted to the network, a different office line is selected by the office line selection function of the private branch exchange.
- the calling number that is supposed to be correct in the office line normally used is rejected by the network verification function, or complemented by the network, and when received at the other terminal, the calling number that can not be used for calling back is transmitted. Problems can be avoided.
- the calling number received from the public line on the incoming connection side for the public line for outgoing connection Regardless of the presence / absence and contents of the caller ID, when a public line that sends outgoing calls responds to incoming calls, regardless of the presence / absence of the connection destination number received from that line, regardless of the contents, the incoming connection A connection number rejection rejection may be sent to the public line on the side. In this case, notification of all calling numbers (connection destination numbers) will be refused, so in this case, too, the problem of transmitting a calling number that cannot be used for call back as described above is avoided. can do.
- FIG. 1 is a diagram showing a data structure for performing a calling number notification function
- FIG. 2 is a schematic diagram for explaining processing of a calling number in a conventional private branch exchange
- FIG. 3 is a schematic diagram for explaining processing of direct dial-in in a conventional private branch exchange.
- FIG. 4 is a block diagram showing the configuration of the private branch exchange according to the embodiment of the present invention
- FIG. 5 is a diagram for explaining a process of assigning a truly recallable calling number in the first embodiment of the present invention.
- Fig. 6 is a flowchart showing the operation when a call is sent from the extension to the office line 1.
- FIG. 7 is a diagram showing an example of the structure of a called number conversion table
- FIG. 8 is a schematic diagram for explaining a process of assigning a truly recallable calling number in the second embodiment of the present invention.
- Fig. 9 is a flowchart showing the operation when a call is sent from the extension to the Digital Integrated Services Network.
- FIG. 10 is a diagram showing an example of the structure of a calling number verification table
- FIGS. 11A and 11B are diagrams showing examples of display on the display of the receiving terminal when notification is rejected.
- FIG. 4 is a block diagram schematically showing the configuration of the private branch exchange according to the embodiment of the present invention.
- a call path switch 10 performs an exchange operation between an extension and an outside or between extensions.
- the central control unit 11 controls the entire exchange including the call path switch 10.
- the storage unit 12 is composed of ROM and RAM, and stores system data and extension data in addition to control programs.
- the external storage device 13 is composed of a floppy disk device or a hard disk device, and is used to save information stored in the storage portion 12 and store operation records of the exchange.
- the extension telephones 14a to l4n are connected to the communication path switch 10, and the line circuits 15a to 15n are used to connect the communication path switch 10 to the extension telephones 14a to 14 ⁇ . Interface. Also, the trunk circuits 16a to 16m interface with an external line connected to the communication path switch 10, for example, an office line.
- the signal generator 17 generates various tone signals.
- the maintenance terminal 18 has a display and a keyboard, and is connected to the central control unit 10 by an interface (not shown). The maintenance terminal 18 is used for setting data of the exchange and inputting various commands.
- FIG. 5 schematically illustrates a process 20 of assigning a truly recallable calling number in the first embodiment of the present invention.
- the transmission signal 21 from the extension may be an analog signal or a digital signal depending on the type of the extension.
- a destination number conversion tape for office line 1 that converts the received signal received for office line 1 to the extension of the destination
- a destination number conversion table 23 for converting an incoming call signal received for the office line 2 into an extension number of the destination, are stored in the storage unit 12.
- the destination number 25 corresponding to the extension number 24 of the extension that makes a call is extracted from the destination number conversion table 22 for the office line 1.
- the outgoing signal 26 is transmitted to the line 1, and is called a call setup signal in the digital combined service network.
- Calling number 27 is the calling number included in outgoing signal 26.
- the outgoing signal 28 is transmitted to the station line 2 and is called a call setup signal in the digital integrated service network.
- Calling number notification rejection 29 is included in outgoing signal 28 and is called a calling number
- FIG. 6 is a flowchart showing an operation when a call is transmitted from the extension to the office line 1.
- the private branch exchange acquires the extension number 24 of the calling extension (step A1).
- the private branch exchange searches the called line conversion table 22 for the office line 1 using the obtained line number 24 as a key to determine whether the called number corresponding to the extension number 24 can be extracted (step A 2). ). If the called number 25 can be extracted, it is included in the outgoing signal 26 for the station line 1 as the extension calling number 27 and transmitted to the network (step A3). Since the calling number 27 is a number permitted by the network on the line 1, it passes the network verification and is transmitted to the partner terminal. If a call is called back using the calling number 27 received from the other party's terminal, the called number can be converted to the extension 24 using the called number exchange table 22 for the office line 1. Can be received at this extension that made the call.
- the private branch exchange searches the office line 2 same-number conversion table 23 using the extension number 24 as a key, and searches for the extension number 24. It is determined whether or not the called number corresponding to (1) can be extracted (step A2). If the called number 25 cannot be extracted, the private branch exchange transmits an outgoing signal 28 in which the calling number notification rejection 29 is set to the network (step A4). In this case, the network does not verify or supplement the calling number and does not notify the called terminal of the calling number, so that the communication partner does not mistakenly call back.
- FIG. 7 shows an example of the structure of the called number conversion table. In the called number conversion table of FIG. 7, a unique called number is set for each extension number so that the called number and the extension number are associated with each other for each line or each trunk group.
- the present embodiment it is possible to easily provide a calling number that can be truly called out using data of an existing called number conversion table without preparing special data. Also, when a calling number that can be called back cannot be extracted, a calling number notification rejection is sent, so it is possible to not explicitly provide the calling number.
- FIG. 8 schematically illustrates a process 30 for assigning a truly recallable calling number in the second embodiment of the present invention.
- the transmission signal 31 from the extension may be an analog signal or a digital signal depending on the type of the extension.
- the calling number verification table for the line 2 that stores the calling number that passes the network verification for the line 2 is stored in the storage unit 12. ing.
- the calling numbers that pass the network verification can be known in advance in the contract with the network, so tables 32 and 33 are created based on this data.
- Calling number 34 corresponds to the extension that makes the call, and it has been confirmed in advance that it is appropriate as the calling number for this extension, but calling number 34 is directly dialed from the network by direct dial-in.
- the calling number 34 can be transmitted from the extension if the extension is an extension corresponding to the digital integrated service network.
- the private branch exchange can transmit data from the accommodation position of the extension and the extension number. It is also possible to search and extract.
- the outgoing signal 35 is a signal transmitted to the station line 1 and is called a call setup signal in the Digital Integrated Services Network. Calling number 26 is included in outgoing signal 35.
- the outgoing signal 37 is a signal transmitted to the station line 2 and is called a call setup signal in a digital combined service network. Calling number notification rejection 38 is included in outgoing signal 37, and is called a calling number notification rejection information element in the digital integrated services network.
- FIG. 9 is a flowchart showing the operation when an outgoing call is sent from the extension to the Digital Integrated Services Network.
- the private branch exchange receives the calling number from this extension (step B1).
- the calling number is not obtained by the one provided from the extension, but the private branch exchange can also obtain the calling number by extracting from the accommodation position of the extension or the extension number.
- the line 1 storing the calling number permitted in the line 1
- the calling number verification table 32 is searched to determine whether the calling number 34 passes the network verification on the local line 1 (step B 2). If the calling number passes the network verification, it is included in the outgoing signal 35 as the calling number 36 and transmitted to the network (step B3). Since the calling number 36 is a number permitted in the network on the station line 1, it passes the network verification and is transmitted to the partner terminal. If a call is returned using the calling number 3b received from the other party's terminal, the call arrives at the private branch exchange and the call can be connected to this extension that made the first call using the termination method provided by the private branch exchange. It is possible.
- the calling number 34 corresponding to the extension does not pass the network verification, the following processing is performed.
- the verification table 33 is searched to determine whether the calling number 34 passes the network verification on the local line 2 (step B 2). If the calling number 34 does not pass the network verification, the private branch exchange transmits an outgoing signal 37 with the calling number notification rejection 38 set to the network (step B4). In this case, the network does not verify or supplement the calling number and does not notify the called terminal of the calling number, so that the communication partner does not mistakenly call back.
- FIG. 10 shows an example of the structure of the calling number verification table.
- this table has only the verification pass number and does not need to be associated with the extension number.
- the calling line can be called back for a normally connected office line that is preset in the private branch exchange or provided from the extension, Depending on the station line selected at the time of originating by the station line selection function of the exchange, it is rejected by the network verification function or complemented with the default number held for each interface and received at the other terminal The problem of being unusable for recall can be avoided.
- Fig. 11A and Fig. 11B show examples of display on the display of the receiving terminal when notification is rejected.
- the present invention can be applied not only to a call from an extension but also to a call from a dedicated line connected to a private branch exchange.
- a dedicated line is connected to the private branch exchange as in the case of the extension, and the operation is almost the same as in the first and second embodiments.
- the calling number is notified to the private branch exchange, but in the case of a dedicated line, the connection destination number is notified.
- the calling number notification is rejected only when the called number cannot be extracted from the conversion table or when the verification does not pass in the verification table. Not limited to this, the calling number notification rejection may be sent in all cases. The same applies to leased lines.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/180,585 US6707897B2 (en) | 1997-03-13 | 1998-03-13 | Private branch exchange |
| CA002253606A CA2253606C (en) | 1997-03-13 | 1998-03-13 | Private branch exchange |
| EP98907212A EP0932312A4 (en) | 1997-03-13 | 1998-03-13 | PRIVATE SWITCH |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5867697 | 1997-03-13 | ||
| JP9/58676 | 1997-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998041042A1 true WO1998041042A1 (en) | 1998-09-17 |
Family
ID=13091189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1998/001059 Ceased WO1998041042A1 (en) | 1997-03-13 | 1998-03-13 | Private branch exchange |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6707897B2 (ja) |
| EP (1) | EP0932312A4 (ja) |
| CA (1) | CA2253606C (ja) |
| WO (1) | WO1998041042A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238066A (ja) * | 2001-02-08 | 2002-08-23 | Toshiba Corp | ネットワークシステム及びその交換装置 |
| US6490344B1 (en) | 1999-10-04 | 2002-12-03 | Kabushiki Kaisha Toshiba | Communication system and communication channel coupling method |
| KR100464488B1 (ko) * | 2000-12-27 | 2004-12-31 | 엘지전자 주식회사 | 간이교환기시스템의 내선 직접 호출 방법 |
| JP2011205163A (ja) * | 2010-01-22 | 2011-10-13 | Nec Infrontia Corp | 電話交換機システム、そのダイヤルイン着信方法、及びそのダイヤルイン着信用プログラム |
| JP2013219816A (ja) * | 2013-06-12 | 2013-10-24 | Oki Electric Ind Co Ltd | 発信元情報通知システム、通信装置及び通信端末 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10057247A1 (de) * | 2000-11-18 | 2002-05-23 | Alcatel Sa | Verfahren und Vorrichtung zur Rufidentifikation |
| AT501836A1 (de) * | 2003-02-13 | 2006-11-15 | Aphona Kommunikationssysteme E | Verfahren zur gesprächsvermittlung |
| JP2004361999A (ja) * | 2003-05-30 | 2004-12-24 | Toshiba Corp | 通信システムの購入紹介情報提供方法及びその通信システムで使用される電話交換装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6490344B1 (en) | 1999-10-04 | 2002-12-03 | Kabushiki Kaisha Toshiba | Communication system and communication channel coupling method |
| KR100464488B1 (ko) * | 2000-12-27 | 2004-12-31 | 엘지전자 주식회사 | 간이교환기시스템의 내선 직접 호출 방법 |
| JP2002238066A (ja) * | 2001-02-08 | 2002-08-23 | Toshiba Corp | ネットワークシステム及びその交換装置 |
| JP2011205163A (ja) * | 2010-01-22 | 2011-10-13 | Nec Infrontia Corp | 電話交換機システム、そのダイヤルイン着信方法、及びそのダイヤルイン着信用プログラム |
| US8731173B2 (en) | 2010-01-22 | 2014-05-20 | Nec Infrontia Corporation | Telephone exchange system, dial-in incoming call method thereof, and dial-in incoming call program thereof |
| JP2013219816A (ja) * | 2013-06-12 | 2013-10-24 | Oki Electric Ind Co Ltd | 発信元情報通知システム、通信装置及び通信端末 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0932312A4 (en) | 2004-11-03 |
| US20020048358A1 (en) | 2002-04-25 |
| CA2253606C (en) | 2005-05-10 |
| CA2253606A1 (en) | 1998-09-17 |
| US6707897B2 (en) | 2004-03-16 |
| EP0932312A1 (en) | 1999-07-28 |
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