JP3583027B2

JP3583027B2 - Private branch exchange and caller information notification method in private branch exchange

Info

Publication number: JP3583027B2
Application number: JP18854099A
Authority: JP
Inventors: 幸嗣山田
Original assignee: NEC Communication Systems Ltd
Current assignee: NEC Communication Systems Ltd
Priority date: 1999-07-02
Filing date: 1999-07-02
Publication date: 2004-10-27
Anticipated expiration: 2019-07-02
Also published as: JP2001016334A

Description

【０００１】
【発明の属する技術分野】
本発明は、構内交換機に関し、特に発呼した発信電話機の発信者情報を発呼された着信電話機に通知する構内交換機および構内交換機における発信者情報通知方法に関する。
【０００２】
【従来の技術】
表示部に発信先の電話番号等の発信者情報を表示できる電話機が一般的になってきており、このような電話機はアナログ信号で発信者情報を受け付けるのが標準的である。
【０００３】
アナログ信号で発信者情報を受け付ける電話機をデジタル交換機に接続する場合には、デジタル交換機と電話機との間に接続されているライン回路でデジタル交換機からデジタル信号で送られてくる発信者情報をアナログ信号に変換し、変換したアナログ信号の発信者情報を電話機に送ることが行われている。
【０００４】
【発明が解決しようとする課題】
しかしながら、従来技術には、ライン回路内部でデジタル信号で送られてきた発信者情報をアナログ信号に変換するため、電話機に接続されている全てのライン回路毎にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けなければならず、さらにライン回路で電話機への発信者情報のメッセージを作成している間、処理速度の速いデジタル交換機のＣＰＵは待たされることになり、交換機システム全体の処理能力が落ちてしまうという問題点があった。
【０００５】
本発明は斯かる問題点を鑑みてなされたものであり、その目的とするところは、電話機に接続されているライン回路にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けることなく、さらにライン回路で電話機への発信者情報のメッセージを作成することがないため、処理速度の速いデジタル交換機のＣＰＵが待たされることがなく、交換機システム全体の処理能力を向上することができる構内交換機および構内交換機における発信者情報通知方法を提供する点にある。
【０００６】
【課題を解決するための手段】
本発明は上記課題を解決すべく、以下に掲げる構成とした。
請求項１記載の発明の要旨は、複数の内線電話機が接続され、音声および制御信号をデジタル信号として取り扱う構内交換機であって、接続されている前記複数の内線電話機の情報を記憶している電話機情報記憶手段と、前記複数の内線電話機の内のいずれかから発呼がなされたとき、発呼した前記内線電話機の情報を前記電話機情報記憶手段から発信者情報として読み出す発信者情報読出手段と、該発信者情報読出手段により読み出された前記発信者情報を前記デジタル信号として出力する発信者情報出力手段と、該発信者情報出力手段から出力された前記デジタル信号の前記発信者情報をアナログ信号に変換して、該変換された前記アナログ信号の前記発信者情報を発呼された前記内線電話機に送出するアナログ信号送出手段と、前記複数の内線電話機の内のいずれかから発呼がなされたとき、前記アナログ信号送出手段と前記発呼された前記内線電話機との間に通話路を確保する通話路確保手段とを具備し、前記アナログ信号送出手段は、前記発呼された前記内線電話機への前記発信者情報の送出後に発信者情報送出済信号を前記通話路確保手段に出力させ、前記通話路確保手段は、前記発信者情報送出済信号を受信することにより、前記アナログ信号送出手段と前記発呼された前記内線電話機との間に確保した前記通話路を解放させることを特徴とする構内交換機に存する。
また請求項２記載の発明の要旨は、複数の内線電話機が接続され、音声および制御信号をデジタル信号として取り扱う構内交換機であって、接続されている前記複数の内線電話機の情報を記憶している電話機情報記憶手段と、前記複数の内線電話機の内のいずれかから発呼がなされたとき、発呼した前記内線電話機の情報を前記電話機情報記憶手段から発信者情報として読み出す発信者情報読出手段と、該発信者情報読出手段により読み出された前記発信者情報を前記デジタル信号として出力する発信者情報出力手段と、該発信者情報出力手段から出力された前記デジタル信号の前記発信者情報をアナログ信号に変換して、該変換された前記アナログ信号の前記発信者情報を発呼された前記内線電話機に送出するアナログ信号送出手段と、前記複数の内線電話機の内のいずれかから発呼がなされたとき、前記アナログ信号送出手段と前記発呼された前記内線電話機との間に通話路を確保する通話路確保手段とを具備し、該通話路確保手段は、前記発信者情報出力手段による前記デジタル信号の前記発信者情報の出力から予め定められた所定時間後に前記アナログ信号送出手段と前記発呼された前記内線電話機との間に確保した前記通話路を解放させることを特徴とする構内交換機に存する。
また請求項３記載の発明の要旨は、外部局線網とのインターフェースを行う局線トランクを具備し、前記電話機情報記憶手段は、前記局線トランクに着信があったとき、前記局線トランクにより受信した外線電話機の情報を前記発信者情報として記憶させることを特徴とする請求項１又は２記載の構内交換機に存する。また請求項４記載の発明の要旨は、複数の内線電話機が接続され、音声および制御信号をデジタル信号として取り扱う構内交換機における発信者情報通知方法であって、前記複数の内線電話機の情報を記憶させておき、前記複数の内線電話機の内のいずれかから発呼がなされたとき、発呼した前記内線電話機の情報を前記記憶している前記複数の内線電話機の情報から発信者情報として読み出し、該読み出した前記発信者情報を前記デジタル信号として出力し、該出力した前記デジタル信号の前記発信者情報をアナログ信号に変換し、発呼された前記内線電話機との間の通話路を確保し、該確保した前記通話路を介して前記変換した前記アナログ信号の前記発信者情報を前記発呼された前記内線電話機に送出し、前記発呼された前記内線電話機への前記発信者情報の送出後に発信者情報送出済信号を出力し、該出力した前記発信者情報送出済信号を受信することにより、前記発呼された前記内線電話機との間に確保した前記通話路を解放することを特徴とする構内交換機における発信者情報通知方法に存する。
また請求項５記載の発明の要旨は、複数の内線電話機が接続され、音声および制御信号をデジタル信号として取り扱う構内交換機における発信者情報通知方法であって、前記複数の内線電話機の情報を記憶させておき、前記複数の内線電話機の内のいずれかから発呼がなされたとき、発呼した前記内線電話機の情報を前記記憶している前記複数の内線電話機の情報から発信者情報として読み出し、該読み出した前記発信者情報を前記デジタル信号として出力し、該出力した前記デジタル信号の前記発信者情報をアナログ信号に変換し、発呼された前記内線電話機との間の通話路を確保し、該確保した前記通話路を介して前記変換した前記アナログ信号の前記発信者情報を前記発呼された前記内線電話機に送出し、前記デジタル信号の前記発信者情報の出力から予め定められた所定時間後に前記発呼された前記内線電話機との間に確保した前記通話路を解放することを特徴とする構内交換機における発信者情報通知方法に存する。
また請求項６記載の発明の要旨は、外部局線網とのインターフェースを行う局線トランクに着信があったとき、前記局線トランクにより受信した外線電話機の情報を前記発信者情報として記憶することを特徴とする請求項４又は５記載の構内交換機における発信者情報通知方法に存する。
また請求項７記載の発明の要旨は、請求項４乃至６のいずれかに記載の構内交換機における発信者情報通知方法を実行可能なプログラムが記憶されている記憶媒体に存する。
【０００７】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて詳細に説明する。
【０００８】
図１は、本発明に係る構内交換機の実施の形態の構成を示すブロック図である。
【０００９】
本実施の形態の構内交換機１１は、音声および制御信号をデジタル信号として取り扱うデジタル交換機であり、図示しないライン回路を介して複数の内線電話機１２、１３と、局線トランク１４とが接続されている。構内交換機１１は、発信者情報が記憶されている記憶装置１５と、構内交換機１１全体の制御を行う中央演算装置１６と、中央演算装置１６からデジタル信号で送られてくる発信者情報をアナログ信号に変換して内線電話機１２、１３に送信するアナログ信号送出装置１７とで構成されている。
【００１０】
内線電話機１２、１３は、発信者情報をアナログ信号で受信して表示することができる内線電話機であり、アナログ信号の発信者情報を受信し、発信内線の内線番号、内線番号に対応する名前情報等の発信者情報を液晶画面等のディスプレイに表示する。また局線トランク１４は、外部局線網とのインターフェース回路で外線から内線電話機１２、１３への発呼を着信する。
【００１１】
記憶装置１５は、構内交換機１１に接続されている内線電話機１２、１３の内線番号、内線番号に対応する名前情報等の情報が発信者情報として記憶されているとともに、発信者情報を通知可能な局線トランク１４に着信があった際に、発信者番号、発信者番号に対応する名前情報等を発信者情報として記憶する。
【００１２】
中央演算装置１６は、内線電話機１２、１３のいずれかから発呼があったとき、または局線トランク１４に着信があったとき、発呼を行った内線電話機もしくは着信のあった局線トランク１４（以下、発信側と称す）と、発呼された内線電話機（以下、着信内線と称す）との間に通話路１８を確保するとともに、アナログ信号送出装置１７を捕捉して着信内線とアナログ信号送出装置１７との間の通話路１９を確保し、発信側の発信者情報を記憶装置１５から読み出し、アナログ信号送出装置１７にデジタル信号として通知する。そしてアナログ信号送出装置１７からの発信者情報送信済信号を受信することにより着信内線とアナログ信号送出装置１７との間の通話路１９を解放する。
【００１３】
アナログ信号送出装置１７は、中央演算装置１６によって通知されたデジタル信号の発信者情報をアナログ信号に変換して、変換したアナログ信号の発信者情報を通話路１９を通じて内線電話機１２、１３に送出する。
【００１４】
次に本実施の形態の動作を図２に基づいて詳細に説明する。
図２は、本発明に係る構内交換機の実施の形態の動作を説明するためのフローチャートである。
【００１５】
構内交換機１１に接続されている内線電話機１３から内線電話機１２に対して発呼がなされた場合を想定して説明する。
【００１６】
内線電話機１３から内線電話機１２に対して発呼がなされると中央演算装置１６は、内線電話機１３と内線電話機１２との間の通話路１８を確保するとともに、アナログ信号送出装置１７を捕捉し（Ａ１）、内線電話機１２とアナログ信号送出装置１７との間の通話路１９を確保する（Ａ２）。
【００１７】
次に中央演算装置１６は、記憶装置１５を検索し（Ａ３）、発信者情報がある場合には、内線電話機１３の内線番号、内線番号に対応する名前情報等の発信者情報を読み出し（Ａ４）、発信者情報がない場合には、非通知情報を作成し（Ａ５）、発信者情報をデジタル信号としてアナログ信号送出装置１７に通知を行う（Ａ６）。
【００１８】
次にアナログ信号送出装置１７は、デジタル信号として通知された発信者情報をアナログ信号に変換し（Ａ７）、変換したアナログ信号の発信者情報を通話路１９を介して内線電話機１２に送出し（Ａ８）、アナログ信号送出装置１７からの変換したアナログ信号の発信者情報を受信した内線電話機１２のディスプレイには、内線電話機１３の発信者情報が表示される。
【００１９】
次にアナログ信号送出装置１７は、変換したアナログ信号の発信者情報の送出完了後、発信者情報送信済信号を中央演算装置１６に出力し、中央演算装置１６は、アナログ信号送出装置１７からの発信者情報送信済信号を受信することにより着信内線とアナログ信号送出装置１７との間の通話路１９を解放する。
【００２０】
なお、局線トランク１４に着信があった場合には、送られてきた発信者番号、発信者番号に対応する名前情報等の情報を発信者情報として記憶装置１５に一旦記憶する動作が追加され、その他の動作は、内線電話間の通話と同様である。
【００２１】
以上説明したように、本発明の実施の形態によれば、構内交換機１１内にアナログ信号送出装置１７を設けることにより、内線電話機に接続されているライン回路にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けることなく、さらにライン回路で電話機への発信者情報のメッセージを作成することがないため、処理速度の速いデジタル交換機のＣＰＵが待たされることがなく、交換機システム全体の処理能力を向上することができるという効果を奏する。
【００２２】
さらに本発明の実施の形態によれば、ライン回路にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けることなく、アナログ信号送出装置１７を発信者情報を送出後に解放するため、最小限のアナログ信号送出装置１７を設けるだけでよく、システムを安価なものとすることができるという効果を奏する。
【００２３】
なお、本実施の形態では、構内交換機１１に発信者情報をアナログ信号で受信して表示することができる内線電話機１２、１３が接続されている例を説明したが、実際には、数多くの内線電話機が構内交換機１１に接続されており、中央演算装置１６は、接続されている内線電話機が発信者情報をアナログ信号で受信して表示することができる内線電話機か否かを把握し、発信者情報をアナログ信号で受信して表示することができる内線電話機に対してのみアナログ信号送出装置１７を介して発信者情報を通知する。
【００２４】
また本実施の形態では、アナログ信号送出装置１７が１つの場合を説明したが、アナログ信号送出装置１７の使用頻度が多い場合には、複数のアナログ信号送出装置１７を設けるとより好適である。
【００２５】
また本実施の形態では、中央演算装置１６が、アナログ信号送出装置１７からの発信者情報送信済信号を受信することにより着信内線とアナログ信号送出装置１７との間の通話路１９を解放するように構成したが、中央演算装置１６からアナログ信号送出装置１７へのデジタル信号の発信者情報の通知後、予め定めた所定時間後に着信内線とアナログ信号送出装置１７との間の通話路１９を解放するように構成しても、本実施の形態と同様の効果が得られる。
【００２６】
さらに本実施の形態では、構内交換機１１に内線電話機１２、１３が接続されている例を説明したが、内線電話機のかわりにデータ端末（ＰＣ）を接続することにより、アナログ信号に発信者情報だけでなく、いろいろな情報（例えば、文字メッセージ情報等）をデータ端末に通知することができるようになり、さらにデータ端末（ＰＣ）からも情報を通知することができる。
【００２７】
なお、本発明が上記各実施形態に限定されず、本発明の技術思想の範囲内において、各実施形態は適宜変更され得ることは明らかである。また、上記構成部材の数、位置、形状等は上記実施の形態に限定されず、本発明を実施する上で好適な数、位置、形状等にすることができる。なお、各図において、同一構成要素には同一符号を付している。
【００２８】
【発明の効果】
本発明の構内交換機および構内交換機における発信者情報通知方法は、構内交換機内にアナログ信号送出装置を設けることにより、内線電話機に接続されているライン回路にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けることなく、さらにライン回路で電話機への発信者情報のメッセージを作成することがないため、処理速度の速いデジタル交換機のＣＰＵが待たされることがなく、交換機システム全体の処理能力を向上することができるという効果を奏する。
さらに本発明の構内交換機および構内交換機における発信者情報通知方法は、ライン回路にデジタル信号で送られてきた発信者情報をアナログ信号に変換する機能を設けることなく、アナログ信号送出装置を発信者情報を送出後に解放するため、最小限のアナログ信号送出装置を設けるだけでよく、システムを安価なものとすることができるという効果を奏する。
【図面の簡単な説明】
【図１】本発明に係る構内交換機の実施の形態の構成を示すブロック図である。
【図２】本発明に係る構内交換機の実施の形態の動作を説明するためのフローチャートである。
【符号の説明】
１１構内交換機
１２、１３内線電話機
１４局線トランク
１５記憶装置
１６中央演算装置
１７アナログ信号送出装置
１８、１９通話路[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a private branch exchange, and more particularly, to a private branch exchange for notifying caller information of a calling telephone set to a called telephone set and a method of notifying caller information in the private branch exchange.
[0002]
[Prior art]
Telephones that can display caller information such as the telephone number of a callee on a display unit have become common, and it is standard for such telephones to accept caller information by analog signals.
[0003]
When connecting a telephone that accepts caller information with an analog signal to a digital exchange, the caller information sent as a digital signal from the digital exchange is sent to the analog circuit through a line circuit connected between the digital exchange and the telephone. , And sending the converted analog signal sender information to a telephone.
[0004]
[Problems to be solved by the invention]
However, in the prior art, in order to convert caller information sent as a digital signal inside a line circuit into an analog signal, a caller sent as a digital signal for every line circuit connected to the telephone is used. The function of converting information into an analog signal must be provided. Further, while the message of the caller information to the telephone is created by the line circuit, the CPU of the digital exchange having a high processing speed is kept waiting. There is a problem that the processing capacity of the entire system is reduced.
[0005]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a function of converting caller information transmitted as a digital signal to a line circuit connected to a telephone into an analog signal. Since no message of the caller information to the telephone is created by the line circuit without providing, the CPU of the digital exchange having a high processing speed does not have to wait, and the processing capacity of the entire exchange system can be improved. Another object of the present invention is to provide a private branch exchange and a method of notifying caller information in the private branch exchange.
[0006]
[Means for Solving the Problems]
The present invention has the following configurations in order to solve the above problems.
The gist of the invention according to claim 1 is a private branch exchange to which a plurality of extension telephones are connected and which handles voice and control signals as digital signals, wherein information of the plurality of connected extension telephones is stored. Information storage means, and, when a call is made from any of the plurality of extension telephones, caller information reading means for reading information of the called extension telephone as caller information from the telephone information storage means, Sender information output means for outputting the sender information read by the sender information reading means as the digital signal; and an analog signal for the sender information of the digital signal output from the sender information output means. Analog signal sending means for sending the converted sender information of the analog signal to the called extension telephone; When a calling is made from any of the extension telephone, comprising a speech path securing section for securing a communication path between the said analog signal sending means calling has been the extension telephone, the analog The signal transmitting means causes the communication path securing means to output a caller information transmission completed signal after transmitting the caller information to the called extension telephone, and the communication path securing means transmits the caller information transmission The private branch exchange is characterized by releasing the communication path secured between the analog signal sending means and the called extension telephone by receiving the completed signal .
The gist of the invention described in claim 2 is a private branch exchange to which a plurality of extension telephones are connected and which handles voice and control signals as digital signals, and stores information of the plurality of extension telephones connected thereto. Telephone information storage means, and, when a call is made from any of the plurality of extension telephones, caller information reading means for reading information on the called extension telephone from the telephone information storage means as caller information; A caller information output means for outputting the caller information read by the caller information read means as the digital signal; and an analog transmitter for the digital signal output from the caller information output means. It is converted into a signal, and the analog signal sending means for sending to said extension telephone set calling the caller information of the converted the analog signal, prior to When a call is made from any one of the plurality of extension telephones, the communication device further comprises a communication path securing means for securing a communication path between the analog signal transmitting means and the called extension telephone. The communication path securing means secures between the analog signal transmitting means and the called extension telephone after a predetermined time from the output of the sender information of the digital signal by the sender information output means. The private branch exchange is characterized in that the communication path is released .
The gist of the invention according to claim 3 is provided with a central office trunk for interfacing with an external central office network, and the telephone information storage means, when an incoming call is received on the central office trunk, by the central office trunk. 3. The private branch exchange according to claim 1, wherein the received information on the outside line telephone is stored as the caller information . The gist of the invention according to claim 4 is a caller information notifying method in a private branch exchange to which a plurality of extension telephones are connected and which handles voice and control signals as digital signals, wherein information of the plurality of extension telephones is stored. In addition, when a call is made from any of the plurality of extension telephones, information on the called extension telephone is read from the stored information on the plurality of extension telephones as caller information, and The read caller information is output as the digital signal, the caller information of the output digital signal is converted into an analog signal, and a call path with the called extension telephone is secured. Sending the caller information of the converted analog signal to the called extension telephone via the secured communication path, and calling the called extension telephone; A caller information transmission completed signal is output after the transmission of the caller information to, and the output of the caller information transmission completed signal is received, thereby securing the caller between the extension telephone set. The present invention resides in a method for notifying caller information in a private branch exchange characterized by releasing a call path .
The gist of the invention according to claim 5 is a caller information notifying method in a private branch exchange to which a plurality of extension telephones are connected and handles voice and control signals as digital signals, wherein information of the plurality of extension telephones is stored. In addition, when a call is made from any of the plurality of extension telephones, information on the called extension telephone is read from the stored information on the plurality of extension telephones as caller information, and and outputs the caller information read as the digital signal, the caller information of the digital signal the output into an analog signal, to ensure the communication path between the extension telephone that is calling, The caller information of the converted analog signal is transmitted to the called extension telephone via the secured communication path, and the transmission of the digital signal is performed. It consists in caller information notifying method in a private branch exchange, characterized in that to release the communication path secured between said call to said extension telephone set after a predetermined time determined in advance from the output information.
The gist of the invention according to claim 6 is that, when an incoming call is received in a central office trunk for interfacing with an external local office network, information on the external telephone received by the central office trunk is stored as the caller information. 6. A method for notifying caller information in a private branch exchange according to claim 4 or claim 5 .
The gist of the invention described in claim 7 resides in a storage medium storing a program capable of executing the caller information notification method in the private branch exchange according to any one of claims 4 to 6 .
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0008]
FIG. 1 is a block diagram showing a configuration of an embodiment of a private branch exchange according to the present invention.
[0009]
The private branch exchange 11 of the present embodiment is a digital exchange that handles voice and control signals as digital signals, and is connected to a plurality of extension telephones 12 and 13 and an office line trunk 14 via a line circuit (not shown). . The private branch exchange 11 includes a storage device 15 in which caller information is stored, a central processing unit 16 for controlling the entire private branch exchange 11, and a caller information transmitted from the central processor 16 as a digital signal. And an analog signal transmitting device 17 for transmitting the data to the extension telephones 12 and 13.
[0010]
The extension telephones 12 and 13 are extension telephones that can receive and display caller information as analog signals, receive the caller information of the analog signal, and provide the extension number of the call extension and name information corresponding to the extension number. Is displayed on a display such as a liquid crystal screen. The office line trunk 14 receives an outgoing call from the outside line to the extension telephones 12 and 13 by an interface circuit with the outside office line network.
[0011]
The storage device 15 stores information such as extension numbers of the extension telephones 12 and 13 connected to the private branch exchange 11 and name information corresponding to the extension numbers as caller information and can notify the caller information. When an incoming call arrives at the central office trunk 14, a caller number, name information corresponding to the caller number, and the like are stored as caller information.
[0012]
When the central processing unit 16 receives a call from one of the extension telephones 12 and 13 or receives a call on the office trunk 14, the extension telephone that made the call or the office trunk 14 that received the call (Hereinafter, referred to as a transmitting side) and a called extension telephone (hereinafter, referred to as a receiving extension), a communication path 18 is secured, and an analog signal transmitting device 17 is captured to receive a receiving extension and an analog signal. The communication path 19 with the transmitting device 17 is secured, the caller information on the transmitting side is read from the storage device 15, and the analog signal transmitting device 17 is notified as a digital signal. Then, by receiving the caller information transmission completed signal from the analog signal transmission device 17, the communication path 19 between the incoming extension and the analog signal transmission device 17 is released.
[0013]
The analog signal transmission device 17 converts the sender information of the digital signal notified by the central processing unit 16 into an analog signal, and sends the converted sender information of the analog signal to the extension telephones 12 and 13 via the communication path 19. .
[0014]
Next, the operation of the present embodiment will be described in detail with reference to FIG.
FIG. 2 is a flowchart for explaining the operation of the embodiment of the private branch exchange according to the present invention.
[0015]
Description will be made on the assumption that a call is made from the extension telephone 13 connected to the private branch exchange 11 to the extension telephone 12.
[0016]
When a call is made from the extension telephone 13 to the extension telephone 12, the central processing unit 16 secures a communication path 18 between the extension telephone 13 and the extension telephone 12, and captures the analog signal transmitting device 17 ( A1), a communication path 19 between the extension telephone 12 and the analog signal transmitting device 17 is secured (A2).
[0017]
Next, the central processing unit 16 searches the storage device 15 (A3), and if there is caller information, reads out the caller information such as the extension number of the extension telephone 13 and the name information corresponding to the extension number (A4). If there is no sender information, non-notification information is created (A5), and the sender information is notified to the analog signal transmitting device 17 as a digital signal (A6).
[0018]
Next, the analog signal transmitting device 17 converts the caller information notified as a digital signal into an analog signal (A7), and transmits the converted caller information of the analog signal to the extension telephone 12 via the communication path 19 ( A8) On the display of the extension telephone 12 which has received the sender information of the converted analog signal from the analog signal transmission device 17, the sender information of the extension telephone 13 is displayed.
[0019]
Next, after completing the transmission of the sender information of the converted analog signal, the analog signal transmitter 17 outputs the sender information transmitted signal to the central processing unit 16, and the central processing unit 16 outputs the signal from the analog signal transmitter 17. Upon receiving the caller information transmitted signal, the communication path 19 between the incoming extension and the analog signal transmitting device 17 is released.
[0020]
When an incoming call arrives at the office trunk 14, an operation of temporarily storing information such as the transmitted caller number and name information corresponding to the caller number in the storage device 15 as caller information is added. The other operations are the same as those between the extension telephones.
[0021]
As described above, according to the embodiment of the present invention, by providing the analog signal transmission device 17 in the private branch exchange 11, the caller who is transmitted as a digital signal to the line circuit connected to the extension telephone is set. There is no need to provide a function to convert information into an analog signal, and since there is no need to create a caller information message to the telephone using a line circuit, the CPU of the digital exchange having a high processing speed does not have to wait, and the exchange system There is an effect that the overall processing capability can be improved.
[0022]
Furthermore, according to the embodiment of the present invention, the analog signal transmitting device 17 is released after transmitting the sender information without providing the line circuit with a function of converting the sender information transmitted as a digital signal into an analog signal. Therefore, only the minimum analog signal transmitting device 17 needs to be provided, and the system can be made inexpensive.
[0023]
In the present embodiment, an example has been described in which extension telephones 12 and 13 capable of receiving and displaying caller information as analog signals are connected to private branch exchange 11, but in practice many extension lines are provided. The telephone is connected to the private branch exchange 11, and the central processing unit 16 determines whether the connected extension telephone is an extension telephone capable of receiving and displaying caller information as analog signals and displaying the caller information. Only the extension telephone that can receive and display the information as an analog signal notifies the caller information via the analog signal transmitting device 17.
[0024]
Further, in the present embodiment, the case where there is one analog signal transmitting device 17 has been described. However, when the analog signal transmitting device 17 is frequently used, it is more preferable to provide a plurality of analog signal transmitting devices 17.
[0025]
In the present embodiment, the central processing unit 16 releases the communication path 19 between the incoming extension and the analog signal transmitting device 17 by receiving the caller information transmitted signal from the analog signal transmitting device 17. After the notification of the sender information of the digital signal from the central processing unit 16 to the analog signal transmitting device 17, the communication path 19 between the incoming extension and the analog signal transmitting device 17 is released after a predetermined time. With this configuration, the same effect as that of the present embodiment can be obtained.
[0026]
Further, in the present embodiment, an example in which extension telephones 12 and 13 are connected to private branch exchange 11 has been described. However, by connecting a data terminal (PC) instead of the extension telephone, only the caller information is added to the analog signal. Instead, various information (for example, text message information, etc.) can be notified to the data terminal, and the information can also be notified from the data terminal (PC).
[0027]
It should be noted that the present invention is not limited to the above embodiments, and it is clear that the embodiments can be appropriately modified within the scope of the technical idea of the present invention. Further, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to numbers, positions, shapes, and the like suitable for carrying out the present invention. In the drawings, the same components are denoted by the same reference numerals.
[0028]
【The invention's effect】
The private branch exchange and the caller information notifying method in the private branch exchange according to the present invention, by providing an analog signal transmitting device in the private branch exchange, the caller information sent as a digital signal to the line circuit connected to the extension telephone. Without providing a function to convert to an analog signal, and without creating a message of caller information to the telephone using a line circuit, the CPU of a digital exchange having a high processing speed is not waited, and the entire exchange system is There is an effect that the processing capacity can be improved.
Further, the private branch exchange and the caller information notifying method in the private branch exchange according to the present invention can provide an analog signal transmitting apparatus with a caller information without providing a line circuit with a function of converting caller information transmitted as a digital signal into an analog signal. Is released after the transmission, only a minimum number of analog signal transmission devices need to be provided, and the system can be made inexpensive.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of a private branch exchange according to the present invention.
FIG. 2 is a flowchart for explaining the operation of the embodiment of the private branch exchange according to the present invention.
[Explanation of symbols]
11 private branch exchange 12,13 extension telephone 14 office line trunk 15 storage device 16 central processing unit 17 analog signal transmitting device 18,19

Claims

A private branch exchange to which a plurality of extension telephones are connected and which handles voice and control signals as digital signals,
Telephone information storage means for storing information of the plurality of connected extension telephones,
When a call is made from any of the plurality of extension telephones, caller information reading means for reading information of the called extension telephone as caller information from the telephone information storage means,
Sender information output means for outputting the sender information read by the sender information reading means as the digital signal,
An analog that converts the caller information of the digital signal output from the caller information output means to an analog signal and sends the converted caller information of the analog signal to the called extension telephone. Signal transmitting means;
When a call is made from any one of the plurality of extension telephones, the communication device includes a communication path securing means for securing a communication path between the analog signal transmitting means and the called extension telephone ,
The analog signal transmitting means, after transmitting the caller information to the called extension telephone, to output a caller information transmitted signal to the communication path securing means,
The communication path securing means, upon receiving the caller information transmission completed signal, releases the communication path secured between the analog signal transmission means and the called extension telephone. Private branch exchange.

A private branch exchange to which a plurality of extension telephones are connected and which handles voice and control signals as digital signals,
  Telephone information storage means for storing information of the plurality of connected extension telephones,
  When a call is made from any of the plurality of extension telephones, caller information reading means for reading information of the called extension telephone as caller information from the telephone information storage means,
  The caller information read by the caller information reading means is converted into the digital signal Caller information output means for outputting as
  An analog for converting the caller information of the digital signal output from the caller information output means into an analog signal, and sending the caller information of the converted analog signal to the called extension telephone. Signal transmitting means;
  When a call is made from any of the plurality of extension telephones, the communication device further includes a communication path securing means for securing a communication path between the analog signal transmitting means and the called extension telephone,
The communication path securing means is provided between the analog signal transmitting means and the called extension telephone after a predetermined time from the output of the sender information of the digital signal by the sender information output means. A private branch exchange characterized by releasing the secured communication path.

An office trunk for interfacing with an external office network,
3. The premises according to claim 1, wherein the telephone information storage means stores information on the external telephone received by the central office trunk as the caller information when an incoming call is received in the central office trunk. switch.

A plurality of extension telephones are connected, a caller information notification method in a private branch exchange that handles voice and control signals as digital signals,
  The information of the plurality of extension telephones is stored,
  When a call is made from any of the plurality of extension telephones, the information of the called extension telephone is read as the caller information from the stored information of the plurality of extension telephones,
  Outputting the read caller information as the digital signal;
  Convert the sender information of the output digital signal into an analog signal,
  Securing a communication path with the called extension telephone,
  Sending the caller information of the converted analog signal to the called extension telephone through the secured communication path;
  After transmitting the caller information to the called extension telephone, output a caller information sent signal,
  A method for notifying caller information in a private branch exchange, wherein the caller information transmission completed signal is received to release the call path secured with the called extension telephone.

A plurality of extension telephones are connected, a caller information notification method in a private branch exchange that handles voice and control signals as digital signals,
  The information of the plurality of extension telephones is stored,
  When a call is made from any of the plurality of extension telephones, the information of the called extension telephone is read as the caller information from the stored information of the plurality of extension telephones,
  Outputting the read caller information as the digital signal;
  Convert the sender information of the output digital signal into an analog signal,
  Securing a communication path with the called extension telephone,
  Sending the caller information of the converted analog signal to the called extension telephone through the secured communication path;
  A caller information notification in the private branch exchange, wherein the call path established between the extension telephone and the called extension telephone is released after a predetermined period of time from the output of the caller information of the digital signal. Method.

6. The telephone line according to claim 4, wherein, when an incoming call is received at a central office trunk for interfacing with an external local office network, information on the external telephone set received by said local office trunk is stored as said caller information. A method for notifying caller information in a private branch exchange.

A storage medium storing a program capable of executing the caller information notifying method in the private branch exchange according to any one of claims 4 to 6.