JP3908394B2 - Telephone line device - Google Patents

Telephone line device Download PDF

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Publication number
JP3908394B2
JP3908394B2 JP23771998A JP23771998A JP3908394B2 JP 3908394 B2 JP3908394 B2 JP 3908394B2 JP 23771998 A JP23771998 A JP 23771998A JP 23771998 A JP23771998 A JP 23771998A JP 3908394 B2 JP3908394 B2 JP 3908394B2
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JP
Japan
Prior art keywords
pbx
private branch
branch exchange
line
lan
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JP23771998A
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Japanese (ja)
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JP2000069512A (en
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圭市 高野
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NEC Engineering Ltd
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NEC Engineering Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、救急機関等における電話回線装置に関し、特に、装置の障害時であっても救急通報等の所望の通信を確保可能な電話回線装置に関する。
【0002】
【従来の技術】
火災や事故などが発生したときに、その発見者は、電話機(TEL)を用いて電話番号「119」をダイヤルし、最寄りの消防本部に通報する。救急機関における電話回線装置では、その指令台(ATT:ATtendance Terminal)へ着信を分配し、当該通報を受け付ける。このようにして、救急通信がなされる。この種の救急機関における電話回線装置は、構内交換機(PBX:Private Branch eXchanger)を核としている。
【0003】
ここで、大規模な地震などの災害時などには、救急機関における電話回線装置自体が故障したり、通信が輻輳状態になる可能性もある。そのような事態に陥ったとしても、救急機関における電話回線装置は、救急通信等を確保可能であるべきである。つまり、救急機関における電話回線装置では、二重化しておいたり、バックアップ可能に構成しておく必要がある。また、緊急事態下であっても、誤操作等がなされないように、自動操作されることが好ましい。
【0004】
特開平6−113039号公報には、構内交換機(PBX)の交換機CPU(:Central Processing Unit)を監視すると共に、119通報回線トランクの各機能を制御する制御回路を119通報回線トランク内に有する、救急機関における電話回線装置が開示されている。119通報回線トランクは、非常時に通話路を管理者側に設けた一般電話機に接続するように切り換えるための切換機を備えている。そして、119通報回線トランク内の制御回路は、一定時間毎に構内交換機(PBX)の交換機CPUを監視している(正常性の診断を行っている)。異常検出時には、119通報回線トランク内の切換機により、119通報回線を管理者側に設けた一般電話機に自動的に接続する。この一般電話機は、オフフックにより119通報に対して応答し、以後、この一般電話機により操作される。つまり、この公報にて開示されている従来の救急機関における電話回線装置は、非常時に119通報回線を一般電話機側に自動で切り換え受け付け応答をするものである。
【0005】
図5は、従来の救急機関における電話回線装置の構成例を示している。図5を参照して、この電話回線装置は、指令台(ATT)25と、局線トランク(COT)23と、局線トランク(COT)23と電話局との間に挿入配置された切換機26と、時分割スイッチ(TDSW:Time Division SWitch)21と、図示しない構内交換機(PBX)の交換機CPU22と、電話機(TEL)27とを有している。
【0006】
【発明が解決しようとする課題】
一般に、救急機関における電話回線装置では、119受け付け以外にも、構内交換機(PBX)に接続されたコンピュータと連動して動作可能な情報処理機能や、119通報内容に基づく統計をとる統計機能など、指令台(ATT)を通して行う種々の付加機能がある。
【0007】
ところが、上述した公報の例や図5に示した例をも含め、従来の救急機関における電話回線装置では、119着信を救急機関に設置した一般電話機で受け付けることは即ち指令台(ATT)を用いないことであり、上記付加機能は一切使えない。さらに、非常時に、日常使い慣れた指令台(ATT)以外の一般電話機を利用すること、即ち、日常とは異なる操作方法を採ることになるため、誤操作を招く虞がある。
【0008】
本発明の課題は、装置の障害時であっても、救急通信等を迅速に確保でき、他の付加機能をも実行可能であり、さらに誤操作の虞がない非常時通信機能付き電話回線装置を提供することである。
【0009】
【課題を解決するための手段】
本発明によれば、局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記構内交換機(PBX)の動作状態を監視する交換機監視手段と、前記指令台(ATT)を接続させたLANと、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)とを有することを特徴とする電話回線装置が得られる。
【0010】
本発明によればまた、前記交換機監視手段は、前記LANおよび装置内電話線のうちの少くとも一方を介して前記構内交換機(PBX)の動作状態を監視する前記電話回線装置が得られる。
【0011】
本発明によればさらに、局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記指令台(ATT)を接続させたLANを有し、前記指令台(ATT)は、該構内交換機(PBX)の動作状態を監視するものであって、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)をさらに有することを特徴とする電話回線装置が得られる。
【0012】
本発明によればまた、局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記指令台(ATT)を接続させたLANと、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の動作状態を監視し、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)とを有することを特徴とする電話回線装置が得られる。
【0013】
【発明の実施の形態】
以下、図面を参照して、本発明の実施の形態による電話回線装置を説明する。
【0014】
図1を参照して、本発明の実施の形態による電話回線装置は、図5に示した従来例同様に、消防署に適用された例であり、交換機CPU12および交換機CPU12に制御される時分割スイッチ(TDSW)11を備え、局線トランク(COT)13を介して局線に接続可能な図示しない構内交換機(PBX)と、構内交換機(PBX)に接続可能な指令台(ATT)15とを有している。
【0015】
本電話回線装置はさらに、指令台(ATT)15を接続させたLAN(:Local Area Network)14を有している。指令台(ATT)15は、構内交換機(PBX)内の交換機CPU12の動作状態を監視するものである。さらに本電話回線装置は、局線、構内交換機(PBX)、およびLAN14に接続しており、構内交換機(PBX)の正常状態時には局線と構内交換機(PBX)とを接続する一方、構内交換機(PBX)の異常状態時には局線とLAN14とを接続することで局線と指令台(ATT)15とを接続させる非常時回線切換機(EMGSW:EMerGency SWitch)16を有している。指令台(ATT)15は、構内交換機(PBX)内の時分割スイッチ(TDSW)11に接続している。
【0016】
即ち、本電話回線装置は、局線トランク(COT)13の前段(即ち、局線側)に、非常時回線切換機(EMGSW)16を有している。非常時回線切換機(EMGSW)16は、後述するように、LANインターフェース部および音声のパケット変換機を備えており、LAN14に接続する。指令台(ATT)15も、LANインターフェース部および音声のパケット変換機を備えており、LAN14に接続する。構内交換機(PBX)の異常状態時に、指令台(ATT)15は、LAN14および非常時回線切換機(EMGSW)16を介して局線と接続し、救急通報等を受け付ける。さらに、音声データに加えて制御データをもLAN14を経由して通信する。したがって、構内交換機(PBX)の異常状態時であっても、消防署内の操作者は、正常時と同じに、指令台(ATT)15を通して、救急通報の受け付けは勿論のこと、構内交換機(PBX)に接続されたコンピュータと連動して動作可能な情報処理機能や、119通報内容に基づく統計をとる統計機能など種々の付加機能をも実行させることが可能である。
【0017】
図2を参照して、非常時回線切換機(EMGSW)16は、局線との接続をなす局線トランクインターフェース部(COTINT:COT INTerface)163と、アナログ音声とパケットデータとの双方向変換を行う音声−パケット変換部(PAD:Packet Assembly Disassembly)162と、LAN14と接続を行うLANインターフェース部(LANINT:LAN INTerface)161と、局線トランク切換機(COTSW:COT SWitch)164と、これらを制御する非常時回線切換機制御部(EMGCONT:EMerGency switch CONTroller)165とを備えている。
【0018】
図3を参照して、指令台(ATT)15は、非常時回線切換機(EMGSW)16内の非常時回線切換機制御部(EMGCONT)165との通信を行うための指令台インターフェース部(ATTINT:ATT INTerface)154と、LAN14と接続を行うLANインターフェース部(LANINT)155と、アナログ音声とパケットデータとの双方向変換を行う音声−パケット変換部(PAD)153と、指令台インターフェース部(ATTINT)154と音声−パケット変換部(PAD)153との切り換えを行う指令台切換機(ATTSW:ATT SWitch)152と、これらを制御する指令台制御部(ATTCONT:ATT CONTroller)151とを備えている。
【0019】
図4は、本電話回線装置の動作を説明するためのシーケンス図である。以下、図1〜図4を参照して、電話回線装置の動作を説明する。
【0020】
ステップS101にて、正常時には、電話局からの回線は、非常時回線切換機(EMGSW)16内の局線トランク切換機(COTSW)164により、局線トランク(COT)13と接続され、構内交換機(PBX)内の交換機CPU12に接続された時分割スイッチ(TDSW)11を介して指令台(ATT)15と接続される。
【0021】
また、指令台(ATT)15内のLANインターフェース部(LANINT)155は、LAN14を経由して指令台(ATT)15と通信可能になっている。
【0022】
指令台(ATT)15は、構内交換機(PBX)内の交換機CPU12と常時監視を行い合い、相互に正常性を確認する。尚、指令台制御部(ATTCONT)151は、装置内電話線およびLAN14のそれぞれを介して構内交換機(PBX)と常時接続しているので、定期監視の信頼性は高い。あるいは、装置内電話線およびLAN14のいずれか一方のみを介して構内交換機(PBX)と常時接続して常時監視を行うことも可能である。
【0023】
ステップS102にて、指令台(ATT)15が構内交換機(PBX)内の交換機CPU12との間の定期監視によって異常を検出した場合には、指令台制御部(ATTCONT)151は、LAN14を経由して非常時回線切換機(EMGSW)16に対して局線トランク切換機(COTSW)164をLAN14側に切り換えるように指示を出す(ステップS103)。
【0024】
ステップS104にて、電話局と接続された局線トランクインターフェース部(COTINT)163は、着信を検出すると、非常時回線切換機制御部(EMGCONT)165に通知し、LAN14上に着信検出のメッセージを送出する。
【0025】
ステップS105にて、着信メッセージを受信した指令台(ATT)15は、操作部に表示を行い、取扱者の受け付けを促す。
【0026】
ステップS106にて、操作者は着信を受け付けると、着信受付のメッセージを指令台(ATT)15から非常時回線切換機(EMGSW)16内の非常時回線切換機制御部(EMGCONT)165に対して送出する。非常時回線切換機制御部(EMGCONT)165は、最初に到来した着信受付メッセージの送出元に対して受け付け確認メッセージを送出する。
【0027】
ステップS107にて、接続が確立されると、非常時回線切換機(EMGSW)16内の音声−パケット変換部(PAD)162は、局線トランクインターフェース部(COTINT)163からの音声をパケットに変換し、接続確立した指令台(ATT)15に対して音声パケットを送出する。同様に、指令台(ATT)15内の音声−パケット変換部(PAD)153も、接続確立先に送出する。
【0028】
尚、本実施の形態では、指令台(ATT)15の指令台制御部(ATTCONT)151が構内交換機(PBX)内の交換機CPU12と常時監視を行い合っているが、非常時回線切換機(EMGSW)16の非常時回線切換機制御部(EMGCONT)165が構内交換機(PBX)内の交換機CPU12と常時監視を行い合うように構成してもよい。この場合でも、装置内電話線およびLAN14のそれぞれを介して構内交換機(PBX)と常時接続しているので、定期監視の信頼性は高い。あるいは、装置内電話線およびLAN14のいずれか一方のみを介して構内交換機(PBX)と常時接続して常時監視を行うことも可能である。
【0029】
【発明の効果】
本発明による電話回線装置は、構内交換機(PBX)の動作状態を監視する交換機監視手段と、指令台(ATT)を接続させたLANと、局線、構内交換機(PBX)、およびLANに接続しており、構内交換機(PBX)の正常状態時には局線と構内交換機(PBX)とを接続する一方、構内交換機(PBX)の異常状態時には局線とLANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)とを有しているため、装置の障害時であっても、救急通信等を迅速に確保でき、他の付加機能をも実行可能であり、さらに誤操作の虞がない。
【図面の簡単な説明】
【図1】本発明の実施の形態による電話回線装置の構成を示すブロック図である。
【図2】図1に示す電話回線装置における非常時回線切換機(EMGSW)の構成を示すブロック図である。
【図3】図1に示す電話回線装置における指令台(ATT)の構成を示すブロック図である。
【図4】図1に示す電話回線装置の動作を説明するためのシーケンス図である。
【図5】従来例による電話回線装置の構成を示すブロック図である。
【符号の説明】
11、21 時分割スイッチ(TDSW)
12、22 交換機CPU
13、23 局線トランク(COT)
14 LAN
15、25 指令台(ATT)
16 非常時回線切換機(EMGSW)
26 切換機
27 電話機(TEL)
151 指令台制御部(ATTCONT)
152 指令台切換機(ATTSW)
153 音声−パケット変換部(PAD)
154 指令台インターフェース部(ATTINT)
155 LANインターフェース部(LANINT)
161 LANインターフェース部(LANINT)
162 音声−パケット変換部(PAD)
163 局線トランクインターフェース部(COTINT)
164 局線トランク切換機(COTSW)
165 非常時回線切換機制御部(EMGCONT)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone line apparatus in an emergency organization, and more particularly to a telephone line apparatus that can ensure desired communication such as an emergency report even when the apparatus is faulty.
[0002]
[Prior art]
When a fire or accident occurs, the discoverer dials the telephone number “119” using a telephone (TEL) and notifies the nearest fire department. A telephone line device in an emergency organization distributes incoming calls to its command board (ATT: ATtendance Terminal) and accepts the notification. In this way, emergency communication is performed. A telephone line device in this type of emergency organization has a private branch exchange (PBX) as the core.
[0003]
Here, in the event of a disaster such as a large-scale earthquake, the telephone line device itself in the emergency organization may break down or communication may become congested. Even in such a situation, the telephone line device in the emergency organization should be able to ensure emergency communication. That is, the telephone line device in the emergency organization needs to be duplicated or configured to be backed up. Further, it is preferable that automatic operation is performed so that erroneous operation or the like is not performed even in an emergency situation.
[0004]
JP-A-6-113039 has a control circuit for controlling each function of the 119 report line trunk in the 119 report line trunk, while monitoring the exchange CPU (Central Processing Unit) of the private branch exchange (PBX). A telephone line device in an emergency organization is disclosed. The 119 report line trunk is provided with a switching device for switching so that the communication path is connected to a general telephone provided on the administrator side in an emergency. The control circuit in the 119 reporting line trunk monitors the exchange CPU of the private branch exchange (PBX) at regular intervals (diagnosing normality). When an abnormality is detected, the 119 reporting line is automatically connected to a general telephone provided on the administrator side by a switching device in the 119 reporting line trunk. This general telephone responds to the 119 notification by off-hook and is subsequently operated by this general telephone. That is, the telephone line device in the conventional emergency organization disclosed in this publication automatically switches and accepts the 119 notification line to the general telephone in an emergency.
[0005]
FIG. 5 shows a configuration example of a telephone line device in a conventional emergency organization. Referring to FIG. 5, this telephone line device includes a command board (ATT) 25, an office line trunk (COT) 23, and a switching machine inserted between the office line trunk (COT) 23 and the telephone office. 26, a time division switch (TDSW) 21, an exchange CPU 22 of a private branch exchange (PBX) (not shown), and a telephone (TEL) 27.
[0006]
[Problems to be solved by the invention]
In general, in the telephone line device in an emergency organization, in addition to accepting 119, an information processing function operable in conjunction with a computer connected to a private branch exchange (PBX), a statistical function for taking statistics based on the contents of the 119 report, There are various additional functions performed through the command board (ATT).
[0007]
However, including the example of the above-mentioned publication and the example shown in FIG. 5, in the conventional telephone line device in the emergency organization, it is necessary to use the command board (ATT) to accept 119 incoming calls by a general telephone set in the emergency organization. The above additional functions cannot be used at all. Furthermore, in the event of an emergency, a general telephone other than the command board (ATT) that is familiar to everyday use is used, that is, an operation method different from that used in daily life is adopted, which may lead to erroneous operation.
[0008]
It is an object of the present invention to provide a telephone line device with an emergency communication function that can quickly secure emergency communication even when the device is faulty, can execute other additional functions, and has no risk of erroneous operation. Is to provide.
[0009]
[Means for Solving the Problems]
According to the present invention, in a telephone line device having a private branch exchange (PBX) connectable to a local line and a command board (ATT) connectable to the private branch exchange (PBX), the operation of the private branch exchange (PBX) Exchange state monitoring means for monitoring the state, LAN connected to the command board (ATT), office line, private branch exchange (PBX), and normal state of the private branch exchange (PBX) connected to the LAN Sometimes the office line is connected to the private branch exchange (PBX), and when the private branch exchange (PBX) is in an abnormal state, the office line is connected to the LAN to connect the office line and the command board (ATT). A telephone line device characterized by having an emergency line switching machine (EMGSW) is obtained.
[0010]
According to the present invention, it is also possible to obtain the telephone line device, wherein the exchange monitoring means monitors the operating state of the private branch exchange (PBX) via at least one of the LAN and an in-device telephone line.
[0011]
Further according to the present invention, in a telephone line device having a private branch exchange (PBX) connectable to a local line and a command stand (ATT) connectable to the private branch exchange (PBX), the command stand (ATT) is provided. The command board (ATT) monitors the operating state of the private branch exchange (PBX), and is connected to a local line, the private branch exchange (PBX), and the LAN. When the private branch exchange (PBX) is in a normal state, the office line is connected to the private branch exchange (PBX), and when the private branch exchange (PBX) is in an abnormal state, the local line is connected to the LAN. And an emergency line switching machine (EMGSW) for connecting the command board (ATT) to the command line (ATT).
[0012]
According to the present invention, in a telephone line device having a private branch exchange (PBX) connectable to a local line and a command stand (ATT) connectable to the private branch exchange (PBX), the command stand (ATT) The connected LAN, the office line, the private branch exchange (PBX), and the LAN are connected to monitor the operation state of the private branch exchange (PBX). When the private branch exchange (PBX) is in a normal state, the local line Is connected to the private branch exchange (PBX), and when the private branch exchange (PBX) is in an abnormal state, the local line and the LAN are connected to connect the local line and the command board (ATT). A telephone line device characterized by having a switching machine (EMGSW) is obtained.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a telephone line device according to an embodiment of the present invention will be described with reference to the drawings.
[0014]
Referring to FIG. 1, the telephone line device according to the embodiment of the present invention is an example applied to a fire department like the conventional example shown in FIG. 5, and is an exchange CPU 12 and a time-division switch controlled by the exchange CPU 12 (TDSW) 11 and a private branch exchange (PBX) (not shown) that can be connected to a local line via a local line trunk (COT) 13 and a command stand (ATT) 15 that can be connected to the private branch exchange (PBX). is doing.
[0015]
The telephone line device further includes a LAN (Local Area Network) 14 to which a command board (ATT) 15 is connected. The command board (ATT) 15 monitors the operating state of the exchange CPU 12 in the private branch exchange (PBX). Further, the telephone line device is connected to the office line, the private branch exchange (PBX), and the LAN 14. When the private branch exchange (PBX) is in a normal state, the telephone line device connects the private line to the private branch exchange (PBX), while the private branch exchange (PBX) In an abnormal state of PBX, an emergency line switching machine (EMGSW: EMERGency SWitch) 16 for connecting the office line and the command board (ATT) 15 by connecting the office line and the LAN 14 is provided. The command board (ATT) 15 is connected to a time division switch (TDSW) 11 in the private branch exchange (PBX).
[0016]
That is, this telephone line device has an emergency line switching machine (EMGSW) 16 in the preceding stage (that is, the office line side) of the office line trunk (COT) 13. As will be described later, the emergency line switching unit (EMGSW) 16 includes a LAN interface unit and a voice packet converter, and is connected to the LAN 14. The command board (ATT) 15 also includes a LAN interface unit and a voice packet converter, and is connected to the LAN 14. When the private branch exchange (PBX) is in an abnormal state, the command board (ATT) 15 is connected to the office line via the LAN 14 and the emergency line switch (EMGSW) 16 and receives an emergency report or the like. Furthermore, in addition to voice data, control data is also communicated via the LAN 14. Therefore, even when the private branch exchange (PBX) is in an abnormal state, the operator in the fire department can accept the emergency report through the command board (ATT) 15 as well as the normal state, as well as the private branch exchange (PBX). It is also possible to execute various additional functions such as an information processing function operable in conjunction with a computer connected to) and a statistical function for taking statistics based on the content of the 119 report.
[0017]
Referring to FIG. 2, an emergency line switching unit (EMGSW) 16 performs a bidirectional conversion between an analog voice and packet data, and a central line trunk interface unit (COTINT: COT INTerface) 163 that is connected to the local line. Voice-to-packet conversion unit (PAD) 162 to perform, LAN interface unit (LANINT: LAN INTerface) 161 to connect to LAN 14, local trunk switch (COTSW: COT SWitch) 164, and control these An emergency line switching machine controller (EMGCONT: EMerGency switch CONTroller) 165.
[0018]
Referring to FIG. 3, command board (ATT) 15 includes command board interface section (ATTINT) for communicating with emergency line switch machine control section (EMGCONT) 165 in emergency line switch machine (EMGSW) 16. : ATT INTerface) 154, LAN interface unit (LANINT) 155 for connecting to LAN 14, voice-packet conversion unit (PAD) 153 for bidirectional conversion between analog voice and packet data, and command board interface unit (ATTINT) ) 154 and a voice-packet conversion unit (PAD) 153, a command board switching unit (ATTSW: ATT SWitch) 152, and a command board control unit (ATTCONT: ATT CONTroller) 151 for controlling them. .
[0019]
FIG. 4 is a sequence diagram for explaining the operation of the telephone line apparatus. The operation of the telephone line device will be described below with reference to FIGS.
[0020]
In step S101, at the normal time, the line from the telephone office is connected to the office trunk (COT) 13 by the office trunk switch (COTSW) 164 in the emergency circuit switch (EMGSW) 16, and the private branch exchange. It is connected to a command board (ATT) 15 via a time division switch (TDSW) 11 connected to the exchange CPU 12 in (PBX).
[0021]
A LAN interface unit (LANINT) 155 in the command board (ATT) 15 can communicate with the command board (ATT) 15 via the LAN.
[0022]
The command board (ATT) 15 constantly monitors the exchange CPU 12 in the private branch exchange (PBX) and mutually confirms the normality. Since the command board control unit (ATTCONT) 151 is always connected to the private branch exchange (PBX) via the telephone line within the apparatus and the LAN 14, the reliability of the regular monitoring is high. Alternatively, it is possible to always connect to the private branch exchange (PBX) through only one of the in-device telephone line and the LAN 14 for continuous monitoring.
[0023]
In step S102, if the command board (ATT) 15 detects an abnormality by regular monitoring with the exchange CPU 12 in the private branch exchange (PBX), the command board control unit (ATTCONT) 151 passes through the LAN 14. The emergency line switch (EMGSW) 16 is instructed to switch the local line trunk switch (COTSW) 164 to the LAN 14 side (step S103).
[0024]
In step S104, the office trunk interface unit (COTINT) 163 connected to the telephone office notifies the emergency line switching unit control unit (EMGCONT) 165 when an incoming call is detected, and sends an incoming call detection message on the LAN 14. Send it out.
[0025]
In step S105, the command board (ATT) 15 that has received the incoming message displays on the operation unit and prompts the operator to accept it.
[0026]
In step S106, when the operator accepts the incoming call, the operator receives an incoming call acceptance message from the command board (ATT) 15 to the emergency line switch controller (EMGCONT) 165 in the emergency line switch (EMGSW) 16. Send it out. The emergency line switch control unit (EMGCONT) 165 sends an acceptance confirmation message to the sender of the incoming incoming message that arrives first.
[0027]
When the connection is established in step S107, the voice-packet conversion unit (PAD) 162 in the emergency line switching unit (EMGSW) 16 converts the voice from the local trunk interface unit (COTINT) 163 into a packet. Then, the voice packet is transmitted to the command board (ATT) 15 that has established the connection. Similarly, the voice-packet conversion unit (PAD) 153 in the command board (ATT) 15 also sends it to the connection establishment destination.
[0028]
In this embodiment, the command board control unit (ATTCONT) 151 of the command board (ATT) 15 constantly monitors the exchange CPU 12 in the private branch exchange (PBX), but the emergency line switching machine (EMGSW). ) 16 emergency line switch control unit (EMGCONT) 165 may be configured to constantly monitor the switch CPU 12 in the private branch exchange (PBX). Even in this case, since it is always connected to the private branch exchange (PBX) via the in-device telephone line and the LAN 14, the reliability of the regular monitoring is high. Alternatively, it is possible to always connect to the private branch exchange (PBX) through only one of the in-device telephone line and the LAN 14 for continuous monitoring.
[0029]
【The invention's effect】
A telephone line device according to the present invention is connected to a switchboard monitoring means for monitoring the operating state of a private branch exchange (PBX), a LAN to which a command board (ATT) is connected, an office line, a private branch exchange (PBX), and the LAN. When the private branch exchange (PBX) is in a normal state, the office line and the private branch exchange (PBX) are connected. On the other hand, when the private branch exchange (PBX) is in an abnormal state, the office line and the LAN are connected. Because it has an emergency line switching machine (EMGSW) that connects to the stand (ATT), emergency communication etc. can be secured quickly even when there is a failure of the equipment, and other additional functions can also be executed In addition, there is no risk of erroneous operation.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a telephone line device according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an emergency line switch (EMGSW) in the telephone line device shown in FIG. 1;
FIG. 3 is a block diagram showing a configuration of a command board (ATT) in the telephone line device shown in FIG. 1;
4 is a sequence diagram for explaining the operation of the telephone line device shown in FIG. 1; FIG.
FIG. 5 is a block diagram showing a configuration of a telephone line device according to a conventional example.
[Explanation of symbols]
11, 21 Time division switch (TDSW)
12, 22 Exchange CPU
13, 23 Trunk trunk (COT)
14 LAN
15, 25 Command board (ATT)
16 Emergency line switching machine (EMGSW)
26 Switching machine 27 Telephone (TEL)
151 Command stand control unit (ATTCONT)
152 Command board switching machine (ATTSW)
153 Voice-packet converter (PAD)
154 Command board interface (ATTINT)
155 LAN interface part (LANINT)
161 LAN interface unit (LANINT)
162 Voice-packet converter (PAD)
163 Office trunk interface (COINT)
164 Office trunk switch (COTSW)
165 Emergency line switching machine controller (EMGCONT)

Claims (4)

局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記構内交換機(PBX)の動作状態を監視する交換機監視手段と、前記指令台(ATT)を接続させたLANと、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)とを有することを特徴とする電話回線装置。In a telephone line device having a private branch exchange (PBX) connectable to a local line and a command board (ATT) connectable to the private branch exchange (PBX), an exchange monitoring for monitoring an operating state of the private branch exchange (PBX) Means, a LAN to which the command board (ATT) is connected, an office line, the private branch exchange (PBX), and the LAN, and when the private branch exchange (PBX) is in a normal state, the local line and the private branch An emergency line switching machine that connects the office line and the command board (ATT) by connecting the office line and the LAN when the private branch exchange (PBX) is in an abnormal state while connecting the exchange (PBX). EMGSW). A telephone line device characterized by comprising: 前記交換機監視手段は、前記LANおよび装置内電話線のうちの少くとも一方を介して前記構内交換機(PBX)の動作状態を監視する請求項1に記載の電話回線装置。2. The telephone line apparatus according to claim 1, wherein the exchange monitoring means monitors an operating state of the private branch exchange (PBX) via at least one of the LAN and an in-apparatus telephone line. 局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記指令台(ATT)を接続させたLANを有し、前記指令台(ATT)は、該構内交換機(PBX)の動作状態を監視するものであって、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)をさらに有することを特徴とする電話回線装置。A telephone line device having a private branch exchange (PBX) connectable to a local line and a command stand (ATT) connectable to the private branch exchange (PBX), and having a LAN connected to the command stand (ATT) The command board (ATT) monitors the operating state of the private branch exchange (PBX) and is connected to a local line, the private branch exchange (PBX), and the LAN, and the private branch exchange (PBX). ) Is connected to the private branch exchange (PBX) in a normal state, while the private line is connected to the LAN by connecting the local line and the LAN when the private branch exchange (PBX) is in an abnormal state. And an emergency line switching machine (EMGSW) for connecting to the telephone line device. 局線に接続可能な構内交換機(PBX)と、前記構内交換機(PBX)に接続可能な指令台(ATT)とを有する電話回線装置において、前記指令台(ATT)を接続させたLANと、局線、前記構内交換機(PBX)、および前記LANに接続しており、該構内交換機(PBX)の動作状態を監視し、該構内交換機(PBX)の正常状態時には局線と該構内交換機(PBX)とを接続する一方、該構内交換機(PBX)の異常状態時には局線と前記LANとを接続することで局線と該指令台(ATT)とを接続させる非常時回線切換機(EMGSW)とを有することを特徴とする電話回線装置。In a telephone line apparatus having a private branch exchange (PBX) connectable to a local line and a command stand (ATT) connectable to the private branch exchange (PBX), a LAN connected to the command stand (ATT), The private branch exchange (PBX) is connected to the LAN, and the operation state of the private branch exchange (PBX) is monitored. When the private branch exchange (PBX) is in a normal state, the local line and the private branch exchange (PBX) An emergency line switch (EMGSW) that connects the office line and the command board (ATT) by connecting the office line and the LAN when the private branch exchange (PBX) is in an abnormal state. A telephone line device comprising:
JP23771998A 1998-08-24 1998-08-24 Telephone line device Expired - Fee Related JP3908394B2 (en)

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