JPH08251646A - Private branch exchange for mobile object communication terminal - Google Patents

Private branch exchange for mobile object communication terminal

Info

Publication number
JPH08251646A
JPH08251646A JP5245895A JP5245895A JPH08251646A JP H08251646 A JPH08251646 A JP H08251646A JP 5245895 A JP5245895 A JP 5245895A JP 5245895 A JP5245895 A JP 5245895A JP H08251646 A JPH08251646 A JP H08251646A
Authority
JP
Japan
Prior art keywords
trunk
pbx
communication network
terminal
mobile object
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.)
Granted
Application number
JP5245895A
Other languages
Japanese (ja)
Other versions
JP3131867B2 (en
Inventor
Tsuneo Kobayashi
恒夫 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Engineering Ltd
Original Assignee
NEC Engineering Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Engineering Ltd filed Critical NEC Engineering Ltd
Priority to JP5245895A priority Critical patent/JP3131867B2/en
Publication of JPH08251646A publication Critical patent/JPH08251646A/en
Application granted granted Critical
Publication of JP3131867B2 publication Critical patent/JP3131867B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: To make it possible to connect this private branch exchange(PBX) to a mobile object communication network, to make it unnecessary to use a cable for the construction of a communication network and to reduce initial cost by providing a trunk circuit part in the PBX connected to a fixed communication network with a mobile object terminal function. CONSTITUTION: A PBX body is provided with the prescribed number of radio trunk interfaces 2 to be radio communication trunk parts, plural PBX storing telephone terminals 25 and a switch box 26. An incoming call based upon an individual number to a radio trunk interface 2 to which a mobile object terminal number is allocated from a public station telephone terminal connected to the fixed communication network is executed by calling the individual number from the terminal. The incoming call is terminated on the interface 2 through a subscriber's exchange, a trunk exchange, a mobile object exchange control part, a base station control part 22, and a base station 23. A mobile object communication terminal PBX 1 detects trunk incoming and terminates an extension number corresponding to the interface 2 concerned.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、例えば、自動車電話や
携帯電話を収容する移動体通信網に接続する移動体通信
端末用の構内交換機(以下、PBX)に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a private branch exchange (hereinafter, PBX) for a mobile communication terminal connected to a mobile communication network accommodating, for example, a car phone or a mobile phone.

【0002】[0002]

【従来の技術】現在利用されている通信網には、図3に
示すように、例えば、公衆交換電話網(PSTN:Publ
ic Switched Telephone Network )やサービス統合ディ
ジタル通信網(ISDN:Integrated Services Digita
l Network )等に代表される固定通信網10と、自動車
電話や携帯電話等に代表される移動体通信網20とがあ
る。固定通信網10は、中継交換機(TS)11,加入
者交換機(LS)12を介して接続される公衆局用電話
端末13や、PBX14を介して接続されるPBX収容
電話端末15等によって構成される通信網であり、一
方、移動体通信網20は、移動体交換制御部(MSC)
21,基地局制御部(BSC)22,基地局(BTS)
23を介して無線通信により接続される移動体通信端末
24等によって構成される通信網である。
2. Description of the Related Art As shown in FIG. 3, a currently used communication network is, for example, a public switched telephone network (PSTN: Publ).
ic Switched Telephone Network) and Integrated Services Digita (ISDN)
1) and a fixed communication network 10 and a mobile communication network 20 such as a car phone and a mobile phone. The fixed communication network 10 includes a public station telephone terminal 13 connected via a relay exchange (TS) 11, a subscriber exchange (LS) 12, a PBX-accommodating telephone terminal 15 connected via a PBX 14, and the like. On the other hand, the mobile communication network 20 is a mobile switching control unit (MSC).
21, base station controller (BSC) 22, base station (BTS)
It is a communication network composed of a mobile communication terminal 24 and the like connected by radio communication via 23.

【0003】そして、固定通信網10における中継交換
機11と移動体通信網20における移動体交換制御部2
1とを各々接続することにより、移動体通信端末−移動
体通信端末間における通信のみならず、移動体通信端末
−固定通信網電話端末間における通信サービスを提供す
ることが可能となり、基地局23の通信エリア内にさえ
いれば、任意の固定通信網電話端末に対して通信するこ
とができるようになっている。また、固定通信網10の
付設には初期設備にコストがかかるが、多数回線が利用
される場合の固定通信網10における1回線当たりの回
線付設料は、移動体通信網20における1回線当たりの
回線付設料と比較して低コストであることから、多数回
線の利用が行われる地域には固定通信網10を付設し、
小数回線しか利用しないときには移動体通信網20を利
用することで経済的な回線利用が図られていた。
A relay exchange 11 in the fixed communication network 10 and a mobile switching control unit 2 in the mobile communication network 20.
It becomes possible to provide not only the communication between the mobile communication terminal and the mobile communication terminal but also the communication service between the mobile communication terminal and the fixed communication network telephone terminal by connecting each to the base station 23. It is possible to communicate with any fixed communication network telephone terminal as long as it is within the communication area. Further, although the installation of the fixed communication network 10 requires a high cost for initial equipment, the line installation fee per line in the fixed communication network 10 when a large number of lines are used is equal to the line installation fee per line in the mobile communication network 20. Since the cost is lower than the line installation fee, the fixed communication network 10 is installed in the area where many lines are used,
When only a small number of lines are used, the mobile communication network 20 is used for economical line use.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、従来の
通信網にあっては、例えば、過疎地域等のように固定通
信網10を付設するほどの回線利用が考えられず、か
つ、移動体通信網20を利用するには回線利用数が多い
地域に通信網を構築する場合、前述した理由から初期設
備にコストのかかる固定通信網10の付設は難しく、ま
た、移動体通信網20も回線付設料の問題により回線の
構築が難しいという問題点があった。ところで、従来の
固定通信網10には、局線と内線間または内線相互間で
接続を行うPBX14という装置があり、このPBX1
4を設置することで回線の有効利用が図られている。し
かし、従来のPBX14は、有線により固定通信網10
に接続して用いるため、そのままでは移動体通信網20
に利用することはできなかった。
However, in the conventional communication network, it is not possible to use the line to the extent that the fixed communication network 10 is attached, such as in a depopulated area, and the mobile communication network is used. If a communication network is constructed in an area where the number of lines used is large in order to use 20, it is difficult to attach the fixed communication network 10 which requires a high cost for the initial equipment due to the above-mentioned reasons, and the mobile communication network 20 also requires a line installation fee. There was a problem that it was difficult to build a line due to the problem of. By the way, in the conventional fixed communication network 10, there is a device called a PBX 14 for connecting between a station line and an extension line or between extension lines.
By installing No. 4, effective use of the line is achieved. However, the conventional PBX 14 uses the fixed communication network 10 by wire.
Since it is used by connecting to the mobile communication network 20 as it is,
Could not be used for.

【0005】本発明の課題は、上記問題点を解消し、移
動体通信網に接続して用いることのできる移動体通信端
末用PBXを提供することにある。
An object of the present invention is to solve the above problems and provide a PBX for a mobile communication terminal which can be used by connecting to a mobile communication network.

【0006】[0006]

【課題を解決するための手段】上記課題を解決する発明
の構成は、移動体交換制御部に接続される基地局制御部
と、基地局制御部により制御される基地局と、基地局と
無線通信を行う移動体端末とを備える移動体通信網内に
おいて、移動体通信端末用PBXは、前記基地局の間で
無線通信を行うことにより外部回線を確保する複数の無
線通信トランク部を有し、この無線通信トランク部によ
り確保された外部回線を任意の通信端末に選択的に接続
するように構成する。
The structure of the invention for solving the above-mentioned problems is a base station control section connected to a mobile switching control section, a base station controlled by the base station control section, a base station and a radio station. In a mobile communication network including mobile terminals that perform communication, the PBX for mobile communication terminals has a plurality of wireless communication trunk units that secure external lines by performing wireless communication between the base stations. The external line secured by the wireless communication trunk section is selectively connected to an arbitrary communication terminal.

【0007】そして、上記無線通信トランク部は、各通
信端末に対応して付与される複数の個別番号と、所定数
の無線通信トランク部に対して付与される代表番号とに
基づいて前記基地局との間で回線を接続するように構成
されており、各通信端末に対応して付与される複数の個
別番号によって接続する場合には、各個別番号に対応す
る無線通信トランク部により接続し、所定数の無線通信
トランク部に対して付与される代表番号によって接続す
る場合には、当該各無線通信トランク部内の空トランク
を順次選択して接続するように構成する。
The wireless communication trunk section is based on a plurality of individual numbers assigned to each communication terminal and a representative number given to a predetermined number of wireless communication trunk sections. It is configured to connect a line between and, when connecting by a plurality of individual numbers assigned corresponding to each communication terminal, connect by a wireless communication trunk unit corresponding to each individual number, When connecting by a representative number given to a predetermined number of wireless communication trunk units, the empty trunks in the respective wireless communication trunk units are sequentially selected and connected.

【0008】[0008]

【作用】複数設けられた無線通信トランク部により無線
通信によって基地局との間で複数の外部回線を確保する
とともに、確保した外部回線を任意の通信端末に接続す
ることで、移動体通信網に接続して用いることのできる
PBXを得ることができる。また、このPBXは、PB
Xに収容される各通信端末に対応して付与される複数の
個別番号と、所定数の無線通信トランク部に対して付与
される代表番号とに基づいて前記基地局との間で回線接
続を行い、個別番号によって呼び出しが行われる場合、
当該個別番号に対応する無線通信トランク部によって接
続し、代表番号によって呼び出しが行われる場合、空ト
ランクとなっている無線通信トランク部によって接続す
る。
With a plurality of wireless communication trunk units provided, a plurality of external lines are secured with the base station by wireless communication, and the secured external lines are connected to an arbitrary communication terminal to establish a mobile communication network. A PBX that can be connected and used can be obtained. Also, this PBX is PB
A line connection is established with the base station based on a plurality of individual numbers assigned to each communication terminal accommodated in X and a representative number assigned to a predetermined number of wireless communication trunk units. Made and the call is made by individual number,
When the wireless communication trunk unit corresponding to the individual number is used for connection and the call is made by using the representative number, the wireless communication trunk unit which is an empty trunk is used for connection.

【0009】[0009]

【実施例】以下、本発明の好適な一実施例を図面を参照
して説明する。図1は、本実施例の移動体通信端末用P
BX1を含む通信網の概略構成を示す図であり、図2
は、図1における移動体通信端末用構内交換機の拡大図
である。なお、図1及び図2において、図3に示す従来
例と同一要素には同一の符号を付している。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a mobile communication terminal P of this embodiment.
2 is a diagram showing a schematic configuration of a communication network including BX1 and FIG.
FIG. 2 is an enlarged view of a private branch exchange for mobile communication terminals in FIG. 1. 1 and 2, the same elements as those of the conventional example shown in FIG. 3 are designated by the same reference numerals.

【0010】本実施例の移動体通信端末用PBX1は、
有線と無線との融合化の流れに合わせて、通常、固定通
信網に接続されて用いられているPBXに対し、そのト
ランク回路部分に移動体端末としての機能を持たせるこ
とにより移動体通信網に接続可能に構成したものであ
る。具体的には、本実施例の移動体通信端末用PBX1
は、図2に示すように、PBX本体に、無線通信トラン
ク部となる無線トランクインターフェース2を所定数設
けるとともに、複数のPBX収容電話端末25及び中継
台26を設けて構成している。
The PBX 1 for mobile communication terminals of this embodiment is
In accordance with the flow of integration of wired and wireless, a PBX which is usually connected to a fixed communication network and used has a trunk circuit portion having a function as a mobile terminal. It is configured to be connectable to. Specifically, the PBX 1 for mobile communication terminals of this embodiment
As shown in FIG. 2, the PBX main body is provided with a predetermined number of wireless trunk interfaces 2 serving as a wireless communication trunk unit, and a plurality of PBX-accepting telephone terminals 25 and a relay stand 26 are provided.

【0011】そして、この移動体通信端末用PBX1に
は、従来の固定通信網に接続されて用いられていたPB
X14と同様に、設けられた無線トランクインターフェ
ース26に各々対応する個別呼び出し用ダイヤル番号が
それぞれ設定されるとともに、所定数毎にまとめてグル
ープ化し、このグループ毎に代表者呼び出し用ダイヤル
番号を設定することにより、各グループ単位を移動体通
信端末群として構成している。そして、代表者番号呼び
出しによる着信接続においては、1グループを構成する
所定数の無線トランクインターフェース2に対して空ト
ランクを順次選択するグループハンティング機能を持た
せることにより、空トランクに着信させるようになって
おり、これによって 個別呼び出し、代表者番号呼び出
しによる中継台着信機能や追加ダイヤルイン機能が実現
されている。また、本実施例では、個別番号による着信
接続か、代表者番号による着信接続かを区別する必要が
あるため、着信情報の中にはいずれのダイヤル発呼によ
るものかを示す識別情報が含まれるものとする。
The mobile communication terminal PBX 1 is a PB that is used by being connected to a conventional fixed communication network.
Similar to X14, individual call dial numbers corresponding to the provided wireless trunk interfaces 26 are respectively set, and a predetermined number is collectively grouped, and a representative call dial number is set for each group. As a result, each group unit is configured as a mobile communication terminal group. Then, in the incoming call connection by calling the representative number, a predetermined number of wireless trunk interfaces 2 forming one group is provided with a group hunting function for sequentially selecting empty trunks, so that incoming calls can be made to the empty trunks. As a result, it is possible to realize the function of receiving a relay stand by calling individual and representative numbers and the additional dial-in function. Further, in the present embodiment, since it is necessary to distinguish between the incoming connection by the individual number and the incoming connection by the representative number, the incoming call information includes identification information indicating which dial call is made. I shall.

【0012】次に、本実施例の移動体通信端末用PBX
1における各種接続動作を説明する。
Next, the PBX for mobile communication terminal of this embodiment
Various connection operations in 1 will be described.

【0013】(PBX1への個別番号によるPBX内線
へのダイヤルイン接続)例えば、固定通信網(公衆交換
電話網)の公衆局用電話端末13から移動体端末番号を
割り振られている無線トランクインターフェース2への
個別番号による着信は、公衆局用電話端末13からの個
別番号発呼により、加入者交換機12−中継交換機11
−移動体交換制御部21−基地局制御部22−基地局2
3を経て、無線トランクインターフェース2に着信す
る。すると、移動体通信端末用PBX1は、トランク着
信を検出し、当該無線トランクインターフェース2に対
応する内線番号に着信する。このように、無線トランク
インターフェース2に割り当てられた個別番号による着
信の場合、各無線トランクインターフェース2に対応す
る内線番号(例えば、無線トランクインターフェース2
aに対してはPBX収容電話端末25a)に着信する。
(Dial-in connection to PBX extension by individual number to PBX 1) For example, a wireless trunk interface 2 to which a mobile terminal number is assigned from a public station telephone terminal 13 of a fixed communication network (public switched telephone network). An incoming call to an individual number to the subscriber exchange 12-relay exchange 11 is made by calling an individual number from the public station telephone terminal 13.
-Mobile switching control unit 21-Base station control unit 22-Base station 2
Then, the call arrives at the wireless trunk interface 2 via 3. Then, the mobile communication terminal PBX 1 detects a trunk incoming call and arrives at the extension number corresponding to the wireless trunk interface 2. In this way, in the case of an incoming call using the individual number assigned to the wireless trunk interface 2, the extension number corresponding to each wireless trunk interface 2 (for example, the wireless trunk interface 2
For a, the PBX-accepting telephone terminal 25a) receives the call.

【0014】(PBX1への代表番号による中継台接
続)前述の例と同様に、固定通信網の公衆局用電話端末
13から移動体端末番号を割り振られている無線トラン
クインターフェース2への代表番号による着信は、公衆
局用電話端末13からの代表番号発呼により、加入者交
換機12−中継交換機11を介して移動体交換制御部2
1に接続され、移動体交換制御部21によりハンティン
ググループ(この場合、無線トランクインターフェース
2a〜2dの4つ)の中から空トランクを選択して基地
局制御部22−基地局23を経て着信を行う。すなわ
ち、図2に示す例では、無線トランクインターフェース
2aが使用中(通話中)であるため、無線トランクイン
ターフェース2bへの着信となる。すると、移動体通信
端末用PBX1は、無線トランクインターフェース2b
によるトランク着信を検出し、この着信が代表者番号で
あったときには、中継台26に着信し、その後、発信者
からの依頼により移動体通信端末用PBX1内に収容さ
れるPBX収容電話端末25に接続される。
(Relay board connection to PBX 1 by representative number) Similar to the above example, by representative number from the public station telephone terminal 13 of the fixed communication network to the wireless trunk interface 2 to which the mobile terminal number is allocated. The incoming call is made by calling the representative number from the telephone terminal 13 for the public station, and the mobile switching control unit 2 through the subscriber exchange 12-relay exchange 11.
1, the mobile switching control unit 21 selects an empty trunk from the hunting group (in this case, four wireless trunk interfaces 2a to 2d), and the incoming call is received via the base station control unit 22-base station 23. To do. That is, in the example shown in FIG. 2, since the wireless trunk interface 2a is in use (during a call), the incoming call is to the wireless trunk interface 2b. Then, the PBX 1 for mobile communication terminal is connected to the wireless trunk interface 2b.
When a trunk incoming call is detected and the incoming call is a representative number, the incoming call is received at the relay stand 26, and thereafter, at the request of the caller, the PBX-accepting telephone terminal 25 accommodated in the PBX 1 for mobile communication terminal. Connected.

【0015】(PBX内線からの発信接続)移動体通信
端末用PBX1の内線からの発信に対しては、無線トラ
ンクインターフェース2は共通装置として使用される。
例えば、図2に示すPBX収容電話端末25bから固定
通信網内の公衆局用電話端末13に対して発信接続要求
を行う場合、移動体通信端末用PBX1は、空トランク
となっている無線トランクインターフェース2cを選択
し、無線トランクインターフェース2cを移動体通信端
末と同様に扱うことにより基地局23と接続する。
(Call Connection from Extension to PBX) The radio trunk interface 2 is used as a common device for the call from the extension of the PBX 1 for mobile communication terminals.
For example, when the PBX accommodating telephone terminal 25b shown in FIG. 2 makes an outgoing connection request to the public station telephone terminal 13 in the fixed communication network, the mobile communication terminal PBX 1 is a wireless trunk interface that is an empty trunk. 2c is selected and the wireless trunk interface 2c is treated in the same manner as a mobile communication terminal to connect to the base station 23.

【0016】以上説明したように、本実施例では、移動
体通信端末用PBX1を集合端末として位置付けること
によって移動体通信網に接続することにより、容易に通
信網を構築することができる。例えば、展示会会場等の
一時的な催し物会場における通信施設の提供や、過疎地
域等に通信網を構築する場合であっても、低コストで回
線を付設することができる。
As described above, in the present embodiment, the communication network can be easily constructed by connecting the PBX 1 for mobile communication terminals to the mobile communication network by positioning it as a collective terminal. For example, even when providing a communication facility at a temporary event site such as an exhibition site or establishing a communication network in a depopulated area, it is possible to attach a line at low cost.

【0017】[0017]

【発明の効果】以上の説明から明らかなように、本発明
によれば、移動体通信網に接続して用いることのできる
PBXを得ることができるので、容易に通信網を構築す
ることができる。また、通信網の構築にはケーブル等を
用いないため、回線付設のための初期コストを大幅に低
減できるという効果がある。
As is apparent from the above description, according to the present invention, a PBX that can be used by connecting to a mobile communication network can be obtained, so that a communication network can be easily constructed. . Further, since no cable or the like is used for constructing the communication network, there is an effect that the initial cost for installing the line can be significantly reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本実施例の移動体通信端末用構内交換機を含む
通信網の概略構成を示す図。
FIG. 1 is a diagram showing a schematic configuration of a communication network including a private branch exchange for mobile communication terminals according to the present embodiment.

【図2】図1における移動体通信端末用構内交換機の拡
大図。
FIG. 2 is an enlarged view of a private branch exchange for mobile communication terminals in FIG.

【図3】従来例の固定通信網と移動体通信網との接続関
係を示す図。
FIG. 3 is a diagram showing a connection relationship between a fixed communication network and a mobile communication network of a conventional example.

【符号の説明】[Explanation of symbols]

1 移動体通信端末用構内交換機 2 無線トランクインターフェース(無線通信トランク
部) 10 固定通信網 11 中継交換機(TS) 12 加入者交換機(LS) 13 公衆局用電話端末 14 PBX(構内交換機) 15 PBX収容電話端末 20 移動体通信網 21 移動体交換制御部(MSC) 22 基地局制御部(BSC) 23 基地局(BTS) 24 移動体通信端末 25 PBX収容電話端末 26 中継台
1 Private branch exchange for mobile communication terminals 2 Wireless trunk interface (wireless communication trunk section) 10 Fixed communication network 11 Relay switch (TS) 12 Subscriber switch (LS) 13 Public station telephone terminal 14 PBX (private branch exchange) 15 PBX accommodation Telephone terminal 20 Mobile communication network 21 Mobile switching control unit (MSC) 22 Base station control unit (BSC) 23 Base station (BTS) 24 Mobile communication terminal 25 PBX accommodation telephone terminal 26 Relay stand

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 基地局制御部によって制御される基地局
との間で無線通信を行って外部回線を確保する複数の無
線通信トランク部を有し、前記無線通信トランク部によ
り確保された外部回線を任意の通信端末に選択的に接続
して成ることを特徴とする移動体通信端末用構内交換
機。
1. An external line secured by the wireless communication trunk unit, comprising a plurality of wireless communication trunk units for wirelessly communicating with a base station controlled by a base station control unit to secure an external line. A private branch exchange for a mobile communication terminal, wherein the private branch exchange is selectively connected to any communication terminal.
【請求項2】 前記無線通信トランク部は、各通信端末
に対応して付与される複数の個別番号と、所定数の無線
通信トランク部に対して付与される代表番号とに基づい
て前記基地局との間で回線接続して成ることを特徴とす
る請求項1記載の移動体通信端末用構内交換機。
2. The base station based on a plurality of individual numbers assigned to each communication terminal and a representative number assigned to a predetermined number of wireless communication trunk units. 2. The private branch exchange for mobile communication terminals according to claim 1, wherein the private branch exchange is connected to the line.
【請求項3】 前記無線通信トランク部は、各通信端末
に対応して付与される複数の個別番号によって接続する
場合、各個別番号に対応する無線通信トランク部により
接続し、一方、所定数の無線通信トランク部に対して付
与される代表番号によって接続する場合、当該各無線通
信トランク部内の空トランクを順次選択して接続して成
ることを特徴とする請求項2記載の移動体通信端末用構
内交換機。
3. The wireless communication trunk section, when connecting by a plurality of individual numbers assigned to each communication terminal, connects by the wireless communication trunk section corresponding to each individual number, while 3. The mobile communication terminal according to claim 2, wherein when connecting by a representative number given to the wireless communication trunk section, empty trunks in the respective wireless communication trunk sections are sequentially selected and connected. Private branch exchange.
JP5245895A 1995-03-13 1995-03-13 Private branch exchange for mobile communication terminals Expired - Fee Related JP3131867B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5245895A JP3131867B2 (en) 1995-03-13 1995-03-13 Private branch exchange for mobile communication terminals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5245895A JP3131867B2 (en) 1995-03-13 1995-03-13 Private branch exchange for mobile communication terminals

Publications (2)

Publication Number Publication Date
JPH08251646A true JPH08251646A (en) 1996-09-27
JP3131867B2 JP3131867B2 (en) 2001-02-05

Family

ID=12915284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5245895A Expired - Fee Related JP3131867B2 (en) 1995-03-13 1995-03-13 Private branch exchange for mobile communication terminals

Country Status (1)

Country Link
JP (1) JP3131867B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010111655A (en) * 2000-06-12 2001-12-20 임종관 Telephone call apparatus and method by using a portable terminal
KR100362928B1 (en) * 2000-05-12 2002-11-29 박근서 Wire/Wireless Conversion Telephone Exchange System

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5270266B2 (en) 2008-09-04 2013-08-21 株式会社エヌ・ティ・ティ・ドコモ Communication system and communication method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100362928B1 (en) * 2000-05-12 2002-11-29 박근서 Wire/Wireless Conversion Telephone Exchange System
KR20010111655A (en) * 2000-06-12 2001-12-20 임종관 Telephone call apparatus and method by using a portable terminal

Also Published As

Publication number Publication date
JP3131867B2 (en) 2001-02-05

Similar Documents

Publication Publication Date Title
US5544226A (en) Private branch exchange having a central control unit and a mobile control unit subordinate thereto
ES2260806T3 (en) METHOD AND PROVISION FOR THE USE OF A MOBILE PHONE IN A WIRELESS OFFICE NETWORK.
US6606495B1 (en) Method and arrangement for wireless communication by means of at least two network computers
US6567658B1 (en) Announcing advertisements to users of a telecommunications system
JP3514458B2 (en) How to make a call
US7558579B2 (en) Method and system for providing access to a telecommunications network
JP3131867B2 (en) Private branch exchange for mobile communication terminals
US6185425B1 (en) Call routing using direct in-dialing numbers in place of temporary routing numbers
CA2237873A1 (en) A method of establishing a toll-free communication connection, as well as a service unit, an exchange and a communications network
KR100239174B1 (en) A method for switching received call in provate exchange system having funcation of internal system access
AU2005239454B2 (en) Establishing a telecommunication link between two terminals while tracing the telecommunication network of the called subscriber
JP3336938B2 (en) Mobile phone system
KR20040004972A (en) Cellular communication system for conference call function and service method thereof
KR20020067400A (en) International roaming service using local number
KR100464337B1 (en) Multiple Calling Method for Wired and Wireless Terminal Equipment in Switching System
US6628773B1 (en) Process for providing the subscriber number of the calling subscriber, service unit, and private communication network
JPH0530219A (en) Incoming call transfer system in mobile object communication
JPS611197A (en) Extension connection system
JPH0898240A (en) Pocket telephone system
JPH0984102A (en) Mobile communication system
JPH099334A (en) Exchange for phs
JP2002291032A (en) Mobile phone service system
JPH02244865A (en) Individual call communication system
JPS61152154A (en) Series call set system of electronic exchange
JPH0369259A (en) Central office incoming system for private branch exchange

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20071124

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081124

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20081124

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20081124

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081124

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091124

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 9

Free format text: PAYMENT UNTIL: 20091124

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101124

Year of fee payment: 10

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 11

Free format text: PAYMENT UNTIL: 20111124

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 11

Free format text: PAYMENT UNTIL: 20111124

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121124

Year of fee payment: 12

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121124

Year of fee payment: 12

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131124

Year of fee payment: 13

LAPS Cancellation because of no payment of annual fees