JP2011199467A - Telephone exchange system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone exchange system which can make other extension telephone except at a transfer source receive an incoming call from a telephone number set as a transfer destination.SOLUTION: The telephone exchange system includes a table 103 in which the telephone number of the exchange telephone set as the transfer source and the telephone number of a cellular phone set as the transfer destination, etc. are stored. A call control part 106 refers to the table 103 in an outside line incoming call, and performs control so that the incoming call from the telephone number set as the transfer destination to the exchange telephone set as the transfer source is not made to be received by the exchange telephone at the transfer source but transferred to other exchange telephone to be received.

Description

  The present invention relates to a telephone exchange system such as a button telephone device and a PBX, and more particularly to an improvement of a transfer telephone.

  Conventionally, when automatically transferring an outside line in a key telephone device or the like, since the call from the transfer destination telephone number is unconditionally transferred to the transfer destination telephone number, the transfer destination is busy. In addition, when calling from an outside telephone of the office of a company or the like from outside the office, the incoming call from the forwarding telephone destination is not subject to external line forwarding, but if the destination is at his / her seat, he / she is out and responds There is no.

  For example, it is assumed that the user's mobile phone is registered as a transfer destination number when an incoming call arrives at a personal extension phone. Then, when a transfer telephone is set when going out and a company is called from a mobile phone on the go, the transfer telephone is activated, and the transfer destination is busy because the mobile phone is set. In other words, the transfer setting destination is busy because it is generally in use.

  Conventionally, technologies related to a transfer telephone include those described in Patent Documents 1 to 5 and the like. Patent Document 1 describes that a call from a caller requesting a call to a predetermined telephone number is transferred to a predetermined transfer destination telephone number.

  In Patent Document 2, a telephone set owned by an elevator worker is a worker telephone set, a telephone set used by an elevator user is a user telephone set, and the caller telephone number included in the outgoing signal is the telephone number of the worker telephone set in the relay device. Or a telephone number of a user telephone, and transfer control is performed according to the determination result. Patent Document 3 describes that an absence response is made to an outside line telephone based on the absence information of the user. In addition, there are those described in Patent Documents 4 and 5 and the like.

JP 2008-236284 A JP 2007-153582 A JP 2008-118391 A JP 2008-022170 A JP 2008-048290 A

  In a conventional telephone exchange system such as a button telephone device / PBX, when an outside line is automatically transmitted, it is not assumed that there is an incoming call from the telephone number of the transfer destination. Therefore, the incoming call communication from the mobile phone set as the transfer destination to the extension phone set as the transfer source becomes busy.

  An object of the present invention is to provide a telephone exchange system capable of receiving an incoming call from a telephone number set as a transfer destination to an extension telephone other than the transfer source without activating the transfer telephone. It is in.

  The present invention has a table in which the telephone number of an extension telephone set as a transfer source and the telephone number set as a transfer destination are stored. Control is performed so that an incoming call to an extension telephone set as a transfer source from a number is transferred to another extension telephone without being transferred to the extension telephone of the transfer source.

  According to the present invention, an incoming call from a telephone number set as a transfer destination to an extension telephone set as a transfer source when an external line is received is transferred to another extension telephone without being transferred to the transfer source extension telephone. This ensures that you can be in touch with someone in the office without getting busy.

It is a block diagram which shows one Embodiment of the telephone switching system which concerns on this invention. It is a flowchart for demonstrating the operation | movement of FIG.

  Next, embodiments for carrying out the invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a telephone exchange system according to the present invention. The telephone exchange system according to the present invention can be suitably used for private branch exchanges such as a button telephone apparatus and a PBX.

  In the figure, reference numeral 101 denotes a key telephone system (button telephone system) according to the present invention. A plurality of extension telephones are connected to the key telephone system 101 as indicated by key telephones 1, 2,..., N, and a dial-in telephone number is set for each extension telephone. The telephone exchange system according to the present invention has a transfer telephone function, and by setting a transfer telephone on its own extension telephone, if there is an incoming call when the user is absent, the telephone number of the transfer destination (such as a mobile phone) ).

  A transfer destination telephone number table 103 is provided in the memory 102 in the system 101, and stores the telephone number of an extension telephone set as a transfer source and the telephone number of a mobile phone or the like set as a transfer destination. For example, when the owner of the key telephone (extension telephone) 1 goes out, the transfer telephone is set to the key telephone 1, and the telephone number of the own extension telephone is set as the transfer source, and the telephone number of the mobile phone or the like is set as the transfer destination. Set.

  In the key telephone system 101, an external line interface unit 104 for controlling incoming calls, an internal line interface unit 105 for controlling extension telephones, and a call control unit 106 for controlling calls are provided. In the figure, reference numeral 107 denotes an ISDN analog VoIP external network (telephone network).

  Next, the operation of this embodiment will be described with reference to FIG. FIG. 2 is a flowchart for explaining the operation of the system of FIG. In the following description, for example, a user of an extension telephone (key telephone 1) sets a transfer telephone to his / her extension telephone, sets a telephone number of his / her mobile phone as a transfer destination, and sets a transfer destination on the go Assume that a dial-in call is received from the set mobile phone to the extension telephone set as the transfer source.

  First, as shown in FIG. 2, for example, a caller (user of key telephone 1) performs a call operation from his / her mobile phone at a place outside the office, and this call operation causes an outside line to be received from the telephone network 107 to the key telephone system 101. Shall be. The call control unit 106 determines whether or not a transfer telephone is set in advance for the extension telephone (key telephone 1 in this example) corresponding to the incoming call of the external line (S1).

  When the transfer telephone is not set as the transfer source telephone number (S1 is False), the call control 106 performs normal outside line incoming call processing. On the other hand, when a transfer telephone is set as the transfer source telephone number (S1 is True), the caller telephone number is analyzed with reference to the transfer destination telephone number table 103 (S2). If it does not match the forwarding telephone number set for the forwarding telephone (S3 is False), the forwarding telephone is activated to make an outside line call to the forwarding telephone number.

  On the other hand, when the caller telephone number matches the transfer destination telephone number set for the transfer telephone (S3 is True), the incoming call is made to one of the extension telephones in the key telephone system 101 (S4). ). For example, referring to the transfer destination telephone number table 103, an outside line call is made to an extension telephone that is not set to a transfer telephone (an employee who is likely to be present at an extension telephone that is not set to a transfer telephone). Do. If no forwarding telephone is set, any extension telephone may be used.

  In that case, it is possible to make an incoming call to any extension telephone by sending out a guidance for inputting a predetermined extension number from the mobile telephone of the transmission source. Further, by sending a guidance for inputting a predetermined external line number from the mobile phone of the transmission source, it can be further transferred to an arbitrary external line.

  As a result, the key telephone (extension telephone) in the presence is ringed (S5), for example, the key telephone 2 shown in FIG. 1 is ringed, and the incoming call from the mobile telephone set as the transfer destination is busy. Never become. In other words, when a call is received from an external line, it is determined whether the caller is the forwarding phone number. If the forwarding phone number is the call, the external call is received from an extension telephone other than the target telephone for forwarding without starting the forwarding telephone. To do. For this reason, it is possible to make an incoming call to someone's extension telephone in the office without being busy.

  In this way, by controlling the incoming call from the telephone number set as the transfer destination when an external line is received to the transfer source extension telephone to the other extension telephone without receiving the transfer source extension telephone. The incoming call does not become busy as in the prior art, and it is always possible to make a call to another extension telephone.

  For example, in an office environment where call forwarding is set for a mobile phone or the like for an incoming call when there is no call, I would like to contact who in the office (employee, etc.) when going out, but who is present is unknown In this case, since the incoming call is transferred to another extension telephone in the office by dialing in to its own extension telephone, it is possible to always contact an employee who is present in the office.

  The present invention can be suitably used for a telephone exchange system such as a button telephone system and a PBX.

1, 2, ..., n Key telephone (extension telephone)
DESCRIPTION OF SYMBOLS 101 Button telephone system 102 Memory 103 Transfer destination telephone table 104 External line interface part 105 Internal line interface part 106 Call control part 107 ISDN analog VoIP external line network (telephone network)

Claims (4)

A telephone exchange system having a plurality of extension telephones each set with a dial-in telephone number and transferring an incoming call to a preset external line,
A table that stores the telephone number of the extension telephone set as the transfer source and the telephone number set as the transfer destination;
When an external line is received, an incoming call from the telephone number set as the transfer destination to the extension telephone set as the transfer source from the telephone number set as the transfer destination is not received by the transfer source extension telephone but another extension telephone Control means for controlling the incoming call to be forwarded to,
A telephone exchange system characterized by comprising:   2. The control unit according to claim 1, wherein an incoming call from a telephone number set as the transfer destination is received by an arbitrary extension telephone by sending a guidance from the transfer destination telephone. Telephone exchange system.   2. The telephone according to claim 1, wherein the control means transfers an incoming call from a telephone number set as the transfer destination to an arbitrary external line by sending a guidance from the transfer destination telephone. Exchange system.   2. The telephone exchange system according to claim 1, wherein the control means makes an incoming call from a telephone number of a telephone set as the transfer destination arrive at an extension telephone in which no transfer telephone is set.

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