JPH06177982A - Line reservation connection method - Google Patents

Line reservation connection method

Info

Publication number
JPH06177982A
JPH06177982A JP32108692A JP32108692A JPH06177982A JP H06177982 A JPH06177982 A JP H06177982A JP 32108692 A JP32108692 A JP 32108692A JP 32108692 A JP32108692 A JP 32108692A JP H06177982 A JPH06177982 A JP H06177982A
Authority
JP
Japan
Prior art keywords
exchange
conference
conference terminal
terminal
connection
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.)
Withdrawn
Application number
JP32108692A
Other languages
Japanese (ja)
Inventor
Shigehiko Yazawa
重彦 矢澤
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP32108692A priority Critical patent/JPH06177982A/en
Publication of JPH06177982A publication Critical patent/JPH06177982A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To attain advance path setting to a conference terminal equipment not in the active state with respect to the line reservation connection method setting a path between conference terminal equipments in advance. CONSTITUTION:This method is a line reservation connection method by which a path is set among plural conference terminal equipments accommodated in different exchanges prior to the communication start, and a 1st conference terminal equipment 2a accommodated in a 1st exchange 1a makes a call to a 2nd conference terminal equipment 2b accommodated in a 2nd exchange 1b, the 1st exchange selects the line 3a to make connection processing to the 2nd exchange. In this case, an incoming call processing means 4 of the 2nd exchange allows an incoming call connection processing section 5 to make normal connection processing when the 2nd conference terminal equipment is an operation enable state and allows a reservation connection processing section 6 to make a notice during terminal calling when the 2nd conference terminal equipment is not an operation enable state and thereby connecting the 1st conference terminal equipment and the 2nd conference terminal equipment through a line. Thus, when the 2nd conference terminal equipment is in the active or dialing state, the 1st conference terminal equipment and the 2nd conference terminal equipment are set to the communication state.

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、会議用端末間に事前に
パスを設定する回線予約接続方法に関する。近年、離れ
た場所に設置された端末間で通信手段を用いて会議を行
う電話会議やテレビ会議が普及しつつある。このような
通信手段を用いる会議では予定した時間に回線を接続し
て通信を開始するが、参加者が参集してから回線輻輳な
どのために予定した端末に接続できないと多くの参加者
が無駄な時間を費やすこととなる。特にテレビ会議の場
合は使用回線の帯域が音声回線より広いが、近年は専用
の回線を使用せずに公衆通信用の複数のディジタル回線
を使用することが多いため、接続する端末数が少なくて
も直ちに回線が確保できるとは限らない状況にある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit reservation connection method for setting a path between conference terminals in advance. 2. Description of the Related Art In recent years, telephone conferences and video conferences, in which a conference is held between terminals installed at distant places using communication means, are becoming popular. In a conference using such a communication method, a line is connected at a scheduled time to start communication, but many participants are wasted if they cannot connect to the scheduled terminal due to line congestion after the participants gather. Will spend a lot of time. Especially in the case of a video conference, the bandwidth of the line used is wider than that of the voice line, but in recent years, since multiple digital lines for public communication are often used instead of using a dedicated line, the number of connected terminals is small. However, it is not always possible to secure a line immediately.

【0002】これを防ぐために会議開始に先立って予め
回線を接続する方法が多くとられているが、従来の方法
では会議開始前であるために会議用端末の電源が投入さ
れていない場合にはその会議用端末に対して事前に接続
を行うことができないようになっている。
In order to prevent this, a method of connecting a line in advance before the start of a conference is often used. However, in the conventional method, when the power of the conference terminal is not turned on because the conference is not started, The conference terminal cannot be connected in advance.

【0003】このため、作動可能状態にない会議用端末
に対しても事前に接続を行うことができる回線予約接続
方法が必要となっている。
For this reason, there is a need for a circuit reservation connection method that enables advance connection to a conference terminal that is not in an operable state.

【0004】[0004]

【従来の技術】図12は従来技術の接続構成図である。図
12の交換機21a,21b はディジタル交換機で、22a 及び22
b はそれぞれ交換機21a,21b のネットワーク(NW)24
a,24bに収容されたテレビ会議用の端末(TV−1,T
V−2)である。
2. Description of the Related Art FIG. 12 is a connection configuration diagram of a prior art. Figure
Twelve exchanges 21a and 21b are digital exchanges, and are 22a and 22b.
b is the network (NW) 24 of the exchanges 21a and 21b, respectively
Video conference terminals (TV-1, T accommodated in a, 24b)
V-2).

【0005】通常、テレビ会議用の端末(以下、会議用
端末と記す)は通常特定の部屋(以下、テレビ会議室と
記す)に設置され、テレビ会議を開催するときに会議参
加者がテレビ会議室に参集する形態がとられる。いま、
2つの会議用端末22a,22b 間でテレビ会議を行うものと
すると、会議参加者は会議用端末22a,22b が設置された
2つのテレビ会議室に参集し、会議用端末の一方、例え
ば会議用端末22a より会議用端末22b に対して接続を行
い、パスの完成により会議を開始する。
Usually, a terminal for a video conference (hereinafter referred to as a conference terminal) is usually installed in a specific room (hereinafter referred to as a video conference room), and when a video conference is held, conference participants have a video conference. It takes the form of gathering in the room. Now
If a video conference is to be held between the two conference terminals 22a and 22b, the conference participants gather in the two video conference rooms in which the conference terminals 22a and 22b are installed, and one of the conference terminals, for example, the conference terminal. The terminal 22a connects to the conference terminal 22b, and the conference is started when the pass is completed.

【0006】テレビ会議に使用される回線23は広帯域の
回線であるが、サービス総合ディジタル通信網(ISD
N)においては画像専用の回線を設置せずに例えばディ
ジタル多重伝送路上の64kビット/秒のディジタル通
信回線(タイムスロット)を複数回線(例えば6タイム
スロット)同時に用いて画像情報を伝送することが多
い。このため、テレビ会議を行うために接続を行った場
合、相手会議用端末との間の回線の使用率が高いと同一
伝送路上に複数回線を確保することができない確率が高
くなる。このような場合、会議の主催者は回線が接続さ
れるまで再呼を繰り返さなければならず、その間、双方
のテレビ会議室に参集した多数の会議参加者が無駄な時
間を費やす結果となる。
Although the line 23 used for the video conference is a wide band line, it is an integrated service digital communication network (ISD).
In N), the image information can be transmitted by simultaneously using a plurality of lines (for example, 6 time slots) of a 64 kbit / sec digital communication line (time slot) on the digital multiplex transmission line without installing a line for exclusive use of the image. Many. For this reason, when a connection is made for a video conference, the probability that a plurality of lines cannot be secured on the same transmission line becomes high if the usage rate of the line with the other conference terminal is high. In such a case, the conference organizer has to repeat the call until the line is connected, and in the meanwhile, a large number of conference participants who have gathered in both video conference rooms are wasted.

【0007】このような事態を避けるため、主催者は会
議開始に先立ち相手会議用端末に対して接続を行い、回
線を確保しておく方法をとることが多いが、事前接続の
時間が早いと相手のテレビ会議室が無人状態で会議用端
末の電源が投入されていないことがあり得る。
In order to avoid such a situation, the organizer often takes a method of connecting to the opposite conference terminal and securing a line before the conference starts, but if the pre-connection time is early It is possible that the video conference room of the other party is unattended and the conference terminal is not powered on.

【0008】従来技術では例えば会議用端末22b の電源
が投入されていないと、会議用端末22a より会議用端末
22b に対して接続を行った場合、会議用端末22b を収容
している交換機21b は着呼端末が異常であるとして接続
を行わず、回線を切断する処理を行うようになっている
ため、回線23を会議通話に先立って接続状態にしておく
ことはできない。
In the prior art, for example, if the conference terminal 22b is not powered on, the conference terminal 22a is
When the connection is made to 22b, the exchange 21b accommodating the conference terminal 22b does not connect because the called terminal is abnormal, and disconnects the line. 23 cannot be connected prior to a conference call.

【0009】[0009]

【発明が解決しようとする課題】従来技術では作動状態
にない端末に対して接続を行うことができないため、会
議通話の開始に先立って会議用端末間にパスを設定して
おくことができず、相手端末に会議参加者が参集してか
ら回線の接続を行うことが多くなっているが、テレビ会
議のように複数回線を同時に占有するような接続では回
線が輻輳状態にあると接続できない確率が高いため、多
数の会議参加者に無駄な時間を費やさせることが多い。
また、そのような事態の発生を避けるために相手端末に
早くから人を配置して端末を作動状態にしておくように
すると会議のための人手が増加するという問題が生ず
る。
In the prior art, it is not possible to make a connection to a terminal that is not in the operating state, and therefore it is not possible to set a path between the conference terminals prior to the start of the conference call. , The line is often connected after the conference participants have gathered at the other terminal, but the probability that the line cannot be connected if the line is congested in the connection that occupies multiple lines at the same time like the video conference. This often causes large numbers of conference participants to waste time.
In addition, if a person is placed at the other terminal and the terminal is kept in an active state in order to avoid such a situation, there is a problem that the number of people for the conference increases.

【0010】本発明は、作動可能状態にない会議用端末
に対して事前のパス設定を可能とすることを目的とす
る。
An object of the present invention is to enable advance path setting for a conference terminal that is not in an operable state.

【0011】[0011]

【課題を解決するための手段】図1及び図2は本発明を
説明するための基本構成図である。図中、1a〜1eは交換
機、2a〜2dは会議用端末、3a, 3c, 3dは回線である。4
は着呼処理手段で、内部に着信接続処理部5と予約接続
処理部6を有し、交換機に着呼があったとき、着呼先端
末(例えば会議用端末2b)が作動可能状態にあるときは
着信接続処理部5が通常の着信接続処理を行い、作動可
能状態にないときは予約接続処理部6が着呼端末が会議
用端末であることを確認して発呼側の交換機(例えば交
換機1a)に対して端末呼出中の通知を行うことによりこ
の呼を接続してきた回線(例えば回線3a)を介して接続
状態とし、接続状態の継続中に着呼のあった会議用端末
が作動可能状態または発呼状態となったときに発呼側の
交換機に通信開始を通知するなどの処理を行って通信を
開始させる。
1 and 2 are basic configuration diagrams for explaining the present invention. In the figure, 1a to 1e are exchanges, 2a to 2d are conference terminals, and 3a, 3c and 3d are lines. Four
Is an incoming call processing means, which internally has an incoming call connection processing section 5 and a reserved connection processing section 6, and when a call is received at the exchange, the called terminal (for example, the conference terminal 2b) is in an operable state. In this case, the incoming call connection processing unit 5 performs a normal incoming call connection process, and when it is not in the operable state, the reserved connection processing unit 6 confirms that the called terminal is a conference terminal, and confirms that the called terminal is a conference terminal. The switching terminal 1a) notifies the caller that the terminal is ringing to establish a connection state via the line that has connected this call (for example, line 3a), and the conference terminal that received the call while the connection state continues is activated. When the enabled state or the calling state is entered, the communication is started by performing processing such as notifying the exchange on the calling side of the start of communication.

【0012】7は予約接続手段で、複数の会議用端末
(例えば会議用端末2c, 2d)間で会議通信が行われる場
合、それらの会議用端末が収容される交換機(例えば交
換機1c, 1d)を含む通信網内(図示省略)の複数の交換
機より任意に選択した交換機(例えば交換機1e)に設け
られ、前記会議用端末間の通信開始前の予め指定された
時刻に、通信を行う複数の会議用端末に対して予約接続
のための発呼を行うものである。予約接続手段7はま
た、回線接続後に予約接続した会議用端末が作動可能状
態または発呼状態となったことにより会議用端末を収容
した交換機の予約接続処理部6より通信開始を通知され
たときに、会議用端末を収容した交換機に対して予約接
続した回線相互を接続して通話を開始させる処理を行
う。
Reference numeral 7 denotes a reservation connection means, which is an exchange (eg, exchanges 1c, 1d) accommodating the conference terminals when conference communication is carried out between a plurality of conference terminals (for example, conference terminals 2c, 2d). A plurality of exchanges provided in a communication network (not shown) including a switch (e.g., exchange 1e) that is arbitrarily selected from among a plurality of exchanges and performs communication at a predetermined time before the start of communication between the conference terminals. A call is made to the conference terminal for reservation connection. When the reservation connection means 7 is notified of the start of communication by the reservation connection processing unit 6 of the exchange accommodating the conference terminal because the conference terminal reserved and connected after the line connection is in the operable state or the calling state. Then, a process for connecting the reserved lines to the exchange that accommodates the conference terminal and starting a call is performed.

【0013】[0013]

【作用】図3は図1及び図2の原理説明図における着呼
処理手段の基本動作を示すフローチャートである。以
下、図1と図3を併用して本発明の作用を説明するが、
以下に記すS1〜S12は図3のフローチャートにおける
各ステップを識別する符号である。
FIG. 3 is a flow chart showing the basic operation of the incoming call processing means in the principle explanatory diagrams of FIGS. The operation of the present invention will be described below with reference to FIGS. 1 and 3.
S1 to S12 described below are codes for identifying each step in the flowchart of FIG.

【0014】第1の交換機1aに収容された第1の会議用
端末2aが第2の交換機1bに収容された第2の会議用端末
2bに対して発呼を行うと、第1の交換機1aは第1の会議
用端末2aと第2の会議用端末2b間の通信に適した回線3a
を選択して第2の交換機1bに対して接続処理を行う。
The first conference terminal 2a accommodated in the first exchange 1a is replaced by the second conference terminal 2a accommodated in the second exchange 1b.
When a call is made to 2b, the first exchange 1a causes the line 3a suitable for communication between the first conference terminal 2a and the second conference terminal 2b.
Is selected and connection processing is performed for the second exchange 1b.

【0015】第2の交換機1bでは第1の交換機1aより着
呼がある(図3のS1) と着呼処理手段4が着呼先の端
末、即ち、第2の会議用端末2bが作動可能状態にあるか
否かを確認し(S2) 、作動可能状態、即ち、正常であ
れば着信接続処理部5が通常の着信接続処理を実行する
(S3,S4)。
In the second exchange 1b, when there is an incoming call from the first exchange 1a (S1 in FIG. 3), the incoming call processing means 4 can operate the destination terminal, that is, the second conference terminal 2b. It is confirmed whether or not it is in a state (S2), and if it is in an operable state, that is, if it is normal, the incoming call connection processing unit 5 executes a normal incoming call connection process (S3, S4).

【0016】第2の会議用端末2bが例えば電源を切断し
ているなど、作動可能状態にないときは予約接続処理部
6が着呼端末が会議用端末であるか否かを確認し(S
6) 、会議用端末でなければ端末異常の場合の所定の処
理を行って呼を放棄する(S11,S12)。
When the second conference terminal 2b is not in an operable state, for example, the power is turned off, the reserved connection processing unit 6 confirms whether the called terminal is the conference terminal (S).
6) If the terminal is not a conference terminal, a predetermined process is performed when the terminal is abnormal, and the call is abandoned (S11, S12).

【0017】着呼端末が会議用端末である場合は、第1
の交換機1aに対して端末呼出中の通知を行う(S6) 。
これによって第1の交換機1aと第2の交換機1bの間は、
第1の会議用端末2aが回線3を通して第2の会議用端末
2bに接続され、第2の会議用端末2bが呼び出されている
状態となる。この場合は実際に第1の会議用端末2aと第
2の会議用端末2bが接続された状態ではないが、通信を
行う際に使用できる回線3が第1の会議用端末2aと第2
の会議用端末2b間に設定された状態、即ち、回線予約状
態となっている(S7) 。
If the called terminal is a conference terminal, the first
The terminal 1 is notified to the exchange 1a (S6).
As a result, between the first exchange 1a and the second exchange 1b,
The first conference terminal 2a is connected to the second conference terminal through the line 3.
2b and the second conference terminal 2b is being called. In this case, although the first conference terminal 2a and the second conference terminal 2b are not actually connected, the line 3 that can be used for communication is the first conference terminal 2a and the second conference terminal 2b.
The state is set between the conference terminals 2b, that is, the line reservation state (S7).

【0018】回線予約接続状態の継続中に会議開始のた
めに第2の会議用端末2bの電源が投入されて作動可能状
態となっとき、或いは作動可能状態となって発呼が行わ
れたとき(S8) 、第2の交換機1bの予約接続処理部6
は呼出中の第2の会議用端末2bが応答したのと同じ処理
を行い、第1の会議用端末2aと第2の会議用端末2b間を
通信状態とし(S9) 、以後、両会議用端末間で通信が
行われる(S10) 。
When the power supply of the second conference terminal 2b is turned on to start the conference while the line reservation connection state continues, or when the second conference terminal 2b becomes operable and the call is made. (S8), the reserved connection processing unit 6 of the second exchange 1b
Performs the same processing as when the second conference terminal 2b being called responds, and establishes a communication state between the first conference terminal 2a and the second conference terminal 2b (S9). Communication is performed between the terminals (S10).

【0019】以上のように、本発明による回線予約接続
方法では、会議の開始に先立って作動可能状態にない会
議用端末に対して予めパスを設定を設定することができ
る。また、図1においては会議用端末の一つから他の会
議用端末に対して予約接続を行っていたが、図2の原理
説明図による回線予約接続方法では会議用端末の代わり
に、予約接続手段6と予約接続端末7が予約接続を行
う。図2では任意の交換機1eに設けた予約接続手段6と
予約接続端末7を用いて会議を行う複数の会議用端末2
c, 2dに個別に予約接続を行い、会議開始時に両会議用
端末2c, 2dが作動可能状態または発呼状態になると交換
機1eにおいて会議用端末2c, 2dに対してそれぞれ接続し
た回線3cと回線3dを接続するようになっているが、基本
的な作用は図1及び図3により説明したものと同じであ
るので作用の説明を省略し、実施例の中で詳細な説明を
行う。
As described above, in the line reservation connection method according to the present invention, the path can be set in advance for the conference terminal which is not in the operable state prior to the start of the conference. Further, in FIG. 1, the reservation connection is made from one of the conference terminals to another conference terminal, but in the line reservation connection method according to the principle explanatory diagram of FIG. 2, the reservation connection is made instead of the conference terminal. The means 6 and the reserved connection terminal 7 make a reserved connection. In FIG. 2, a plurality of conference terminals 2 for conducting a conference by using the reserved connection means 6 and the reserved connection terminal 7 provided in an arbitrary exchange 1e.
Reservation connection is separately made to c and 2d, and when both conference terminals 2c and 2d are in an operable state or a calling state at the start of the conference, the line 3c and the line connected to the conference terminals 2c and 2d respectively in the exchange 1e. Although 3d is connected, since the basic operation is the same as that described with reference to FIGS. 1 and 3, the description of the operation will be omitted and a detailed description will be given in the embodiment.

【0020】[0020]

【実施例】図4乃至図6は本発明の実施例の構成図、図
7乃至図9は本発明の実施例のシーケンス図、図10及び
図11は本発明の実施例のフローチャートである。
4 to 6 are block diagrams of an embodiment of the present invention, FIGS. 7 to 9 are sequence diagrams of an embodiment of the present invention, and FIGS. 10 and 11 are flow charts of the embodiment of the present invention.

【0021】全図を通じ同一符号は同一対象物を示し、
1a〜1eは交換機、2a〜2dは会議用端末、3a, 3c, 3dは回
線、4は着呼処理部、5び6は着呼処理部4を構成する
各部で、5は着信接続処理部、6は予約接続処理部であ
る。また、7は予約接続部、8乃至10は予約接続部7を
構成する各部で、8は予約接続制御部、9a〜9cは予約接
続端末、10は回線相互接続部である。11a 〜11f はそれ
ぞれ交換機1a〜1fの制御装置、12は制御装置11a 〜11f
内に設けられる端末状態監視部、13a 〜13f はそれぞれ
交換機1a〜1fのネットワーク(NW)である。
Throughout the drawings, the same reference numerals denote the same objects,
1a to 1e are exchanges, 2a to 2d are conference terminals, 3a, 3c and 3d are lines, 4 is an incoming call processing unit, 5 and 6 are respective units constituting the incoming call processing unit 4, and 5 is an incoming connection processing unit. , 6 are reserved connection processing units. Further, 7 is a reserved connection unit, 8 to 10 are respective units configuring the reserved connection unit 7, 8 is a reserved connection control unit, 9a to 9c are reserved connection terminals, and 10 is a line interconnection unit. 11a to 11f are control devices for the exchanges 1a to 1f, and 12 is a control device 11a to 11f.
Terminal state monitoring units 13a to 13f provided therein are networks (NW) of the exchanges 1a to 1f, respectively.

【0022】以下、各実施例について説明するが、全図
を通じ、交換機1a〜1fはすべてISDN対応の機能を有
し、会議用端末2a〜2dと各会議用端末が収容される交換
機1a〜1d間及び交換機1a〜1f相互間はISDNに規定さ
れたインタフェース及びプロトコルにより接続されるも
のとする。
Each embodiment will be described below. Throughout the drawings, all the exchanges 1a to 1f have ISDN-compatible functions, and the conference terminals 2a to 2d and the exchanges 1a to 1d accommodating the conference terminals are accommodated. The exchanges and the exchanges 1a to 1f are connected to each other by the interface and protocol defined by ISDN.

【0023】図4は図1の基本構成に基づく実施例の構
成図、図7は図4の構成のシーケンスの実施例、図10及
び図11は図4の構成の動作フローの実施例を示す。以
下、図4の構成について図7,図10及び図11を併用して
説明する。なお、a〜z(全図を通じ、一部の符号は不
使用)は図7のシーケンス図中で授受されるメッセージ
と接続状態を識別する符号、S21〜S34及びS41〜S49
は図10及び図11のフローチャートの各ステップを識別す
る符号である。
FIG. 4 is a configuration diagram of an embodiment based on the basic configuration of FIG. 1, FIG. 7 is an embodiment of a sequence of the configuration of FIG. 4, and FIGS. 10 and 11 are embodiments of an operation flow of the configuration of FIG. . Hereinafter, the configuration of FIG. 4 will be described with reference to FIGS. 7, 10, and 11. Note that a to z (some symbols are not used throughout the drawings) are symbols for identifying messages exchanged in the sequence diagram of FIG. 7 and connection states, S21 to S34 and S41 to S49.
Is a code for identifying each step of the flowcharts of FIGS. 10 and 11.

【0024】図4において、交換機1a(以下、交換機A
と記す)のネットワーク13a に収容された会議用端末2a
(以下、TV−1と記す)と交換機1b(以下、交換機B
と記す)のネットワーク13b に収容された会議用端末2b
(以下、TV−2と記す)はテレビ会議用の端末であ
り、両会議用端末2a, 2b間でテレビ会議が予定されてい
るものとする。
In FIG. 4, exchange 1a (hereinafter, exchange A
Conference terminal 2a accommodated in network 13a
(Hereinafter, referred to as TV-1) and exchange 1b (hereinafter, exchange B)
Conference terminal 2b accommodated in network 13b)
It is assumed that (hereinafter, referred to as TV-2) is a terminal for video conference, and a video conference is scheduled between the conference terminals 2a and 2b.

【0025】広帯域を使用するテレビ会議の場合、交換
機Aと交換機Bの間の回線が輻輳している時間帯では回
線が接続できない場合が多いため、主催者が会議開催時
間よりも早い時間にTV−1よりTV−2に対して発呼
するが、この時点ではTV−2が設置されているテレビ
会議室(図示省略)は無人であり、TV−2の電源が入
っていないものとする。
In the case of a video conference using a wide band, it is often the case that the line cannot be connected during a time period when the line between the exchange A and the exchange B is congested. -1 makes a call to TV-2, but at this time, the video conference room (not shown) in which TV-2 is installed is unattended and the power of TV-2 is not turned on.

【0026】主催者が先ずTV−1の電源スイッチ(図
示省略)をオンすると、TV−1と交換機A間の物理的
インタフェースであるレイヤ1が停止中の状態から立ち
上がる(図7のa)。次いでTV−1よりTV−2に対
して発呼するとISDNのプロトコルに従ってTV−1
より交換機Aに対してレイヤ3のメッセージであるSE
T UP(呼設定要求)が送出される(図7のb)。
When the sponsor first turns on the power switch (not shown) of the TV-1, the layer 1 which is the physical interface between the TV-1 and the exchange A starts up from the stopped state (a in FIG. 7). Then, when a call is made from TV-1 to TV-2, TV-1 is followed according to the ISDN protocol.
SE which is a layer 3 message to exchange A
T UP (call setup request) is transmitted (b in FIG. 7).

【0027】交換機Aの制御装置11a 内の図示省略され
た発呼処理部はSET UPを受信するとTV−1に対
してCALL PROC(呼設定処理中の通知)を返送
(図7のc)する。次いでこの呼設定要求がテレビ会議
用の通信であることを識別し、交換機Bとの間にテレビ
会議に必要な回線数を確保(確保した回線を回線3aで示
す)して交換機BにSET UPを送る(図7のd)。
なお、このSET UPメッセージは回線3a以外の回線
を介して送られる場合もある。
A call processing unit (not shown) in the control device 11a of the exchange A returns a CALL PROC (notification of call setting process) to the TV-1 upon receiving the SET UP (c in FIG. 7). . Then, this call setting request is identified as communication for a video conference, the number of lines necessary for the video conference is secured with the exchange B (the secured line is shown by the line 3a), and the exchange B is set up. Is sent (d in FIG. 7).
The SET UP message may be sent via a line other than the line 3a.

【0028】交換機Bでは制御装置11b 内において着呼
を処理する着呼処理部4が上記のSET UP(図7の
d)を受け、交換機Aに対してCALL PROCを返
送(図7のe)したのち、着呼端末であるTV−2に対
する接続を開始する。
In the exchange B, the incoming call processing unit 4 for processing an incoming call in the control unit 11b receives the above-mentioned SET UP (d in FIG. 7) and returns a CALL PROC to the exchange A (e in FIG. 7). After that, the connection to the incoming call terminal TV-2 is started.

【0029】図10は予約接続時の交換機Bの動作フロー
を示しており、以下、図10を主として説明するが、最初
にTV−2の電源がオン状態でTV−2が作動可能状態
にある場合について説明する。この場合の処理は図4の
着信接続処理部5において以下のように行われるが、そ
の処理内容は従来におけると同じである。
FIG. 10 shows an operation flow of the exchange B at the time of reservation connection. The operation will be mainly described below with reference to FIG. 10. First, the power source of the TV-2 is ON and the TV-2 is in the operable state. The case will be described. The processing in this case is performed in the incoming connection processing unit 5 of FIG. 4 as follows, but the processing content is the same as in the conventional case.

【0030】交換機Bでは着呼(S21) に対してCAL
L PROCを返送(S22,図7のeに同じ) し、TV
−2に対する接続を開始する。先ず、TV−2のレイヤ
1の状態を図4に示した端末状態監視部12を介して確認
する(S23) 。レイヤ1が正常であると、TV−2にS
ET UPを送出して着呼を知らせる(S24) 。
At the exchange B, the CAL is made to the incoming call (S21).
L PROC is returned (S22, same as e in FIG. 7), and TV
Start a connection to -2. First, the state of the layer 1 of the TV-2 is confirmed via the terminal state monitoring unit 12 shown in FIG. 4 (S23). If layer 1 is normal, S
ET UP is sent to notify the incoming call (S24).

【0031】SET UPを受信したTV−2が内部で
呼び出し動作を行うとともに交換機Bに対して呼出中で
あることを知らせるALERTを返すと、交換機Bは内
部及び発呼側の交換機Aに対して呼出中の処理(詳細省
略)を行う(S25→S26)。
Upon receiving the SET UP, the TV-2 performs the calling operation inside and returns ALERT notifying to the exchange B that the call is being made, and the exchange B sends the exchange A to the exchange A on the internal side and the calling side. Processing during calling (details omitted) is performed (S25 → S26).

【0032】TV−2が応答(オフフック)するとTV
−2より交換機Bに対してCONN(応答)が送られ、
交換機Bは内部及び交換機Aに対して応答処理(詳細省
略)を行い(S27→S28)、TV−1とTV−2は通信
状態に入る(S29) 。
When TV-2 responds (off-hook), TV-2
-2 sends a CONN (response) to exchange B,
The exchange B performs a response process (details omitted) to the inside and the exchange A (S27 → S28), and the TV-1 and TV-2 enter the communication state (S29).

【0033】次にTV−2が作動可能状態にない場合を
説明する。TV−2の電源が入っていない場合など、T
V−2が作動可能状態にない場合は、レイヤ1の状態が
異常であると確認されるか(S23) 、端末よりALER
TもCONN(S25,S27)も受信せずにタイムアウト
となる(S30) 。この状態になると図4の予約接続処理
部4bは着呼端末が会議用端末であるか否かを確認し(S
31) 、会議用端末でなければ端末が異常であるとして呼
を放棄する処理を行う(S34) 。
Next, the case where the TV-2 is not in the operable state will be described. If the TV-2 is not turned on, T
If the V-2 is not in an operable state, is it confirmed that the state of layer 1 is abnormal (S23), or the ALER from the terminal
Time-out occurs without receiving T or CONN (S25, S27) (S30). In this state, the reservation connection processing unit 4b of FIG. 4 confirms whether the called terminal is the conference terminal (S
31) If the terminal is not a conference terminal, the terminal is considered to be abnormal and the call is abandoned (S34).

【0034】着呼端末が会議用端末である場合、作動可
能状態でないTV−2に対してSET UPを送ること
はできず、TV−2よりALERTのメッセージを受信
することもないが、予約接続処理部6はここで交換機A
に対して端末呼出中を示すALERTを送る(S32、図
7のf) 。
When the called terminal is a conference terminal, SETUP cannot be sent to TV-2 which is not in operation, and ALERT message is not received from TV-2, but reserved connection is made. The processing unit 6 is the exchange A here.
To the terminal (S32, f in FIG. 7).

【0035】この状態は交換機Aから見ると着信側の交
換機BがTV−2に対して呼び出しを行っている状態と
なるので、交換機Aは交換機BよりALERTを受信す
るとTV−1にALERTを送る(図7のg)が、この
状態はTV−1が着信側よりの応答を待っている状態と
なり、TV−1と回線3aが接続された状態(この状態を
予約接続状態と呼ぶ)となる(S33、図7のx)。
In this state, from the viewpoint of the exchange A, the exchange B on the receiving side is calling the TV-2. Therefore, when the exchange A receives ALERT from the exchange B, it sends ALERT to TV-1. In this state (g in FIG. 7), the TV-1 is waiting for a response from the receiving side, and the TV-1 and the line 3a are connected (this state is called the reserved connection state). (S33, x in FIG. 7).

【0036】この予約接続状態で会議開始時刻となり、
TV−2の電源が投入されてTV−1と交換機B間のレ
イヤ1が立ち上がり(図7のh)、次いでTV−2より
発呼を知らせるSET UPが交換機Bに送出されたも
のとする(図7のi)。
In this reserved connection state, the conference start time comes,
It is assumed that the power source of the TV-2 is turned on, the layer 1 between the TV-1 and the exchange B rises (h in FIG. 7), and then the SET UP for notifying the call from the TV-2 is sent to the exchange B ( FIG. 7 i).

【0037】図11はこのときの交換機Bの動作フローを
示しているが、以下、図11と図7を併用して説明する。
TV−2よりSET UPを受信(S41,図7のi)す
ると、交換機Bの制御装置12内の図示省略された発呼処
理部はTV−2に対してCALL PROCを返送(S
42,図7のj)したのち、図4の予約接続処理部6に処
理を移す。
FIG. 11 shows an operation flow of the exchange B at this time, but the following explanation will be given by using FIG. 11 and FIG. 7 together.
When the SET UP is received from the TV-2 (S41, i in FIG. 7), the call processing unit (not shown) in the control device 12 of the exchange B returns the CALL PROC to the TV-2 (S).
42, after j) in FIG. 7, the process is transferred to the reserved connection processing unit 6 in FIG.

【0038】予約接続処理部6は先ず、発呼端末が会議
用端末であるか否かを確認し、発呼端末が会議用端末で
ない場合は通常の発呼処理を行うよう発呼処理部に処理
を戻す(S43→S44)。発呼端末が会議用端末である場
合は、この会議用端末(この場合、TV−1)が呼出中
の状態(図10のS33の状態)にあるか否かを確認し、呼
出中でなければ通常の発呼処理を行うよう発呼処理部に
処理を戻す(S45→S46)。
The reserved connection processing unit 6 first confirms whether or not the calling terminal is a conference terminal, and if the calling terminal is not a conference terminal, instructs the calling processing unit to perform normal call processing. The process is returned (S43 → S44). If the calling terminal is a conference terminal, check whether this conference terminal (in this case, TV-1) is in a ringing state (state of S33 in FIG. 10), and call it. For example, the processing is returned to the call processing unit so that the normal call processing is performed (S45 → S46).

【0039】TV−1が呼出中の状態にある場合は、T
V−2に対してCONN(応答)を送出し(S47,図7
のk)、発呼側の交換機Aに対してCONNを送出する
(S48,図7のm)。着呼処理部4はCONNを送出す
ると、交換機Bのネットワーク13b など内部を制御して
TV−2と回線3aを通信状態にする(S49) 。
If TV-1 is in a ringing state, T
A CONN (response) is sent to V-2 (S47, FIG. 7).
K), and sends CONN to the exchange A on the calling side (S48, m in FIG. 7). When the incoming call processing unit 4 sends CONN, it controls the inside of the exchange 13 such as the network 13b to bring the TV-2 and the line 3a into a communication state (S49).

【0040】交換機Aは交換機BよりCONNを受信す
るとTV−1にCONNを送る(図7のm)とともに、
内部を制御してTV−1と回線3aを通信状態にする。ま
た、TV−1とTV−2はCONNを受信すると、それ
ぞれ端末内部を通信状態に切り替え(詳細省略)、TV
−1とTV−2は通信状態になる(図7のq)。
When the exchange A receives the CONN from the exchange B, the exchange A sends the CONN to the TV-1 (m in FIG. 7).
The inside is controlled to bring the TV-1 and the line 3a into a communication state. Further, when the TV-1 and the TV-2 receive the CONN, the inside of the terminal is switched to the communication state (details omitted), and the TV
-1 and TV-2 are in a communication state (q in FIG. 7).

【0041】以上のように、図4の構成では、テレビ会
議の主催者は相手会議用端末TV−2の電源が投入され
ていない状態でも主催者側に設置されている会議用端末
TV−1を用いて予め接続を行うことができるので、会
議開催時刻になって接続を行い、回線捕捉不能に遭遇す
るような事態に至ることがない。
As described above, in the configuration shown in FIG. 4, the organizer of the video conference has the conference terminal TV-1 installed on the organizer side even when the other conference terminal TV-2 is not powered on. Since the connection can be made in advance by using, there will be no situation in which the connection is made at the time when the conference is held and the line cannot be caught.

【0042】次に図5及び図8を用いて本発明の他の実
施例を説明する。図5は図2の基本構成に基づく一実施
例の構成図を示し、図8はそのシーケンスの実施例を示
す図である。なお、a〜zは図8のシーケンス図中で授
受されるメッセージと接続状態を識別する符号である。
Next, another embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a configuration diagram of an embodiment based on the basic configuration of FIG. 2, and FIG. 8 is a diagram showing an embodiment of the sequence. It should be noted that a to z are codes for identifying the messages exchanged in the sequence diagram of FIG. 8 and the connection state.

【0043】図4の構成では会議用端末のひとつを用い
て事前に接続を行っていたが、図5は予約接続用の端末
を用いて予約接続を行う点が図4と異なっている。図5
の交換機1c(以下、交換機Cと記す)及び交換機1d(以
下、交換機Dと記す)はそれぞれネットワーク13c 及び
ネットワーク13d に会議用端末2c(以下、TV−1と記
す)及び会議用端末2d(以下、TV−2と記す)を収容
している。
In the configuration shown in FIG. 4, one of the conference terminals is used for connection in advance, but FIG. 5 is different from FIG. 4 in that the reservation connection is made by using the reservation connection terminal. Figure 5
The exchange 1c (hereinafter referred to as exchange C) and the exchange 1d (hereinafter referred to as exchange D) are respectively a conference terminal 2c (hereinafter referred to as TV-1) and a conference terminal 2d (hereinafter referred to as network-1c). , TV-2).

【0044】一方、交換機1e(以下、交換機Eと記す)
はネットワーク13e に会議用端末とは異なる予約接続端
末9a, 9b(以下、TA−1,TA−2と記す)を収容し
ている。TA−1及びTA−2は予約接続制御部8によ
り制御されるが、このTA−1,TA−2と予約接続制
御部8とで予約接続部7を構成している。予約接続制御
部8には予めTV−1とTV−2がテレビ会議の開始に
先立って予約接続を行う時刻が登録されているが、予約
接続時刻においてはTV−1及びTV−2はいずれも電
源が切られており、交換機1eとの間のレイヤ1は停止中
であるとする。
On the other hand, exchange 1e (hereinafter referred to as exchange E)
Accommodates reserved connection terminals 9a and 9b (hereinafter referred to as TA-1 and TA-2) different from the conference terminals in the network 13e. The TA-1 and TA-2 are controlled by the reserved connection control unit 8, and the TA-1 and TA-2 and the reserved connection control unit 8 constitute the reserved connection unit 7. The reserved connection control unit 8 has registered in advance the time at which the TV-1 and the TV-2 make the reserved connection prior to the start of the video conference, but at the reserved connection time, both the TV-1 and the TV-2 are registered. It is assumed that the power is off and Layer 1 with the exchange 1e is stopped.

【0045】予約接続時刻になると予約接続制御部8は
先ずTA−1を介して会議用端末の一つであるTV−1
に対して発呼を行い、次いでTA−2を介して他の会議
用端末TV−2に対して発呼を行う。交換機Eは通常の
発呼と同様にしてこれらの呼の接続処理を行う。以下、
図8のシーケンス図を主として説明するが、図7と同一
の動作を行う部分については簡単に説明する。
When the reserved connection time comes, the reserved connection control unit 8 firstly transmits the TV-1 which is one of the conference terminals via the TA-1.
To the other conference terminal TV-2 via TA-2. The exchange E performs a connection process for these calls in the same manner as a normal call. Less than,
The sequence diagram of FIG. 8 will be mainly described, but a part performing the same operation as that of FIG. 7 will be briefly described.

【0046】予約接続制御部8の制御によりTA−1は
交換機EにSET UPを送ると交換機Eはこれを交換
機Cに送る(図8のa,b)。交換機CはSET UP
に対してCALL PROCを返送する(図8のc)
が、TV−1が作動可能状態にないため、予約接続処理
部6が交換機Eに対して端末呼出中を知らせるALER
Tを返送する(図8のd)。これにより、TA−1は回
線3Cを通して交換機Cに接続され、TV−1の応答を待
っている状態、即ち、予約接続状態となる(図8の
1 )。
Under the control of the reserved connection control unit 8, TA-1 sends a SET UP to the exchange E, and the exchange E sends it to the exchange C (a, b in FIG. 8). Exchange C is SET UP
CALL PROC is returned to (c in FIG. 8)
However, since the TV-1 is not in the operable state, the reserved connection processing unit 6 informs the exchange E that the terminal is being called.
T is returned (d in FIG. 8). As a result, the TA-1 is connected to the exchange C through the line 3C and is in a state waiting for a response from the TV-1, that is, a reserved connection state (x 1 in FIG. 8).

【0047】次いで予約接続制御部8がTA−2よりS
ET UPを送出させると、交換機Eと交換機Dの間で
同様の動作が行われ(図8のe〜h)、TA−2は回線
3dを通して交換機Dとの間で予約接続状態となる(図8
のx2 )。
Next, the reserved connection control unit 8 sends S from TA-2.
When ET UP is sent, the same operation is performed between the exchange E and the exchange D (e to h in FIG. 8), and TA-2 is the line.
A reserved connection is established with the exchange D through 3d (Fig. 8).
X 2 ).

【0048】会議の開始時刻となり、TV−1が電源を
投入してレイヤ1を立ち上げたのち発呼すると(図8の
i,j)、交換機Cの予約接続処理部6は図7の交換機
Bにおけると同様の動作を行い、TV−1に対してCA
LL PROCを返送し、次いで相手応答を知らせるC
ONNを送る(図8のk,m)。このとき交換機Eに対
してもCONNを送る(図8のn)ので、交換機Eでは
TA−1に対してCONNを送り、相手端末のTV−1
が応答したことを通知する(図7のo)。これによって
TV−1とTA−1間は通信中の状態となる。
At the conference start time, when the TV-1 turns on the power to start the layer 1 and then makes a call (i, j in FIG. 8), the reserved connection processing unit 6 of the exchange C causes the reservation connection processing unit 6 of the exchange C in FIG. Perform the same operation as in B, and CA to TV-1
C that sends back LL PROC and then acknowledges the other party's response
Send ONN (k, m in FIG. 8). At this time, since the CONN is also sent to the exchange E (n in FIG. 8), the exchange E sends the CONN to TA-1 and the other terminal's TV-1.
Notifies that it has responded (o in FIG. 7). As a result, the state between the TV-1 and TA-1 is in communication.

【0049】TV−2が電源を投入して発呼すると交換
機Dと交換機Eの間で同様の処理が行われ、TV−2と
TA−2間が通信中の状態となる(図8のp〜u)。予
約接続制御部6はTA−1とTA−2の両予約接続端末
がCONNを受信すると、TA−1とTA−2を通信状
態に設定するが、TA−1とTA−2の通信路は回線相
互接続部10により接続されているため、回線3cと回線3d
はネットワーク13e 、TA−1、回線相互接続部10、T
A−2を通して接続され、TV−1とTV−2間で通信
が行われるようになる(図8のz)。
When the TV-2 turns on the power and makes a call, the same processing is performed between the exchange D and the exchange E, and the communication between the TV-2 and the TA-2 is established (p in FIG. 8). ~ U). When both TA-1 and TA-2 reserved connection terminals receive CONN, the reserved connection control unit 6 sets TA-1 and TA-2 in a communication state, but the communication path between TA-1 and TA-2 is Line 3c and line 3d are connected by the line interconnection unit 10.
Is network 13e, TA-1, line interconnection 10, T
Connection is made through A-2, and communication is performed between TV-1 and TV-2 (z in FIG. 8).

【0050】上記における予約接続時の交換機C及び交
換機Dの動作フローは図10と同一であり、また会議開始
時刻となり、TV−1及びTV−2が発呼を行った際の
交換機C及び交換機Dの動作フローは図11と同一である
ので図5の構成に対するフローチャートの記載は省略す
る。
The operation flow of the exchange C and the exchange D at the time of reserved connection is the same as that of FIG. 10, and the exchange C and the exchange C when the TV-1 and TV-2 make a call at the conference start time. Since the operation flow of D is the same as that of FIG. 11, the description of the flowchart for the configuration of FIG. 5 is omitted.

【0051】次に図6について説明する。図6は図2の
基本構成に基づく他の実施例の構成図を示し、図9はそ
のシーケンスの実施例を示す図である。図5の構成では
交換機Eに設置した2つの予約接続端末TA−1,TA
−2がそれぞれ別個に会議用端末TV−1及びTV−2
に予約接続を行い、会議の際、TV−1とTV−2はT
A−1及びTA−2を通して通信を行うようになってい
たが、図6では交換機4f(以下、交換機Fと記す)に設
けられた1つの予約接続端末9c(以下、TA−3と記
す)がTV−1とTV−2に順次接続を行い、TV−1
及びTV−2が発呼後は交換機Fのネットワーク13f を
介して通信を行う構成となっている。
Next, FIG. 6 will be described. FIG. 6 is a block diagram of another embodiment based on the basic configuration of FIG. 2, and FIG. 9 is a diagram showing an embodiment of the sequence. In the configuration of FIG. 5, the two reserved connection terminals TA-1 and TA installed in the exchange E are used.
-2 are separate conference terminals TV-1 and TV-2
Make a reservation connection to TV-1 and TV-2 at the time of the conference.
Although communication was performed through A-1 and TA-2, in FIG. 6, one reserved connection terminal 9c (hereinafter referred to as TA-3) provided in the exchange 4f (hereinafter referred to as exchange F). Connects to TV-1 and TV-2 in sequence, and TV-1
After the call is made, the TV-2 and the TV-2 communicate with each other via the network 13f of the exchange F.

【0052】以下、図6の動作を図9を用いて説明する
が、図8と重複する部分については簡単に説明する。な
お、a〜zは図9のシーケンス図中で授受されるメッセ
ージと接続状態を識別する符号である。
The operation of FIG. 6 will be described below with reference to FIG. 9, but a portion overlapping with FIG. 8 will be briefly described. It should be noted that a to z are codes for identifying the messages exchanged in the sequence diagram of FIG. 9 and the connection state.

【0053】予約接続時刻になると交換機Eの予約接続
制御部8は先ずTA−3を介してテレビ会議を行う会議
用端末の一つであるTV−1に対して発呼を行い、図8
におけると同様、交換機CよりALERTを受信する
(図9のa〜d)。ここで、TA−3は他の会議用端末
TV−2に対しても接続を行うので接続相手ごとに呼番
号を用いて識別するようになっており、TV−1に対す
る接続には呼番号1(以下、CR#1と記す)を使用す
る。
When the reserved connection time comes, the reserved connection control unit 8 of the exchange E first makes a call to TV-1 which is one of the conference terminals for conducting a video conference via TA-3, and
Similarly to the above, the ALERT is received from the exchange C (a to d in FIG. 9). Here, since TA-3 also connects to another conference terminal TV-2, it is designed to identify each connection partner by using a call number. (Hereinafter referred to as CR # 1) is used.

【0054】交換機CよりのALERT受信(図9の
d)によりTA−1は回線3cを介してTV−1に予約
接続された状態となる(図9のx1 )が、ALERTを
受信すると予約接続制御部8はTA−3より交換機Fに
対して保留を要求するHOLDを送出する(図9の
v)。交換機Fの制御装置11f はHOLDを受信したこ
とを確認するHOLD ACKをTA−3に返し(図9
のw)、回線3cを保留状態とする。
By receiving the ALERT from the exchange C (d in FIG. 9), the TA-1 is reserved and connected to the TV-1 via the line 3c (x 1 in FIG. 9), but when the ALERT is received, the TA-1 is reserved. The connection control unit 8 sends HOLD requesting the hold from the exchange F from TA-3 (v in FIG. 9). The control device 11f of the exchange F returns a HOLD ACK confirming that the HOLD is received to the TA-3 (see FIG. 9).
W), the line 3c is put on hold.

【0055】CR#1の接続がが保留状態となると予約
接続制御部8は同じTA−3よりTV−2に対して呼番
号2(以下、CR#2と記す)で発呼し、図8と同様、
交換機DよりALERTを受信する(図9のe〜h)。
この状態でTA−3は回線3dを介してTV−2に予約
接続された状態となる(図9のx2 )。
When the connection of CR # 1 is put on hold, the reserved connection control unit 8 makes a call from the same TA-3 to TV-2 with the call number 2 (hereinafter referred to as CR # 2), and the call shown in FIG. same as,
The ALERT is received from the exchange D (e to h in FIG. 9).
In this state, TA-3 is reserved and connected to TV-2 via line 3d (x 2 in FIG. 9).

【0056】会議開始時刻となり、TV−1が発呼する
と、図8と同様な動作が行われ(図9のi〜o)、交換
機FはCR#1に対する応答としてCONNをTA−3
に送る(図9のo)。次いでTV−2が発呼すると、同
様な動作が行われ、交換機Dより交換機Fに対してCO
NNが送られてくる(図9のp〜t)と交換機FはCR
#2に対する応答としてCONNをTA−3に送る(図
9のu)。
When the conference start time arrives and the TV-1 makes a call, the same operation as in FIG. 8 is performed (i to o in FIG. 9), and the exchange F responds to CR # 1 with CONN TA-3.
(O in FIG. 9). Next, when the TV-2 makes a call, the same operation is performed, and the exchange D sends a CO to the exchange F.
When the NN is sent (p to t in FIG. 9), the exchange F is CR.
CONN is sent to TA-3 as a response to # 2 (u in FIG. 9).

【0057】TA−3がCR#1,CR#2の両接続に
対してCONNを受信すると、予約接続制御部8は交換
機Fに対してTRSを送出する(図9のy)。このTR
Sは先にCR#1の呼が保留した接続の保留解除を要求
するとともに、CR#1とCR#2の呼が接続されてい
る回線3cと回線3dを接続することを要求するメッセージ
である。交換機Fの制御装置11f はこのTRSを受ける
と回線3cと回線3dをネットワーク13fで接続し、TV−
1とTV−2は通信状態となる(図9のz)。
When TA-3 receives CONN for both the connections of CR # 1 and CR # 2, the reserved connection controller 8 sends TRS to the exchange F (y in FIG. 9). This TR
S is a message requesting to release the connection held by the call of CR # 1 previously and to connect the line 3c and the line 3d to which the calls of CR # 1 and CR # 2 are connected. . Upon receiving this TRS, the control device 11f of the exchange F connects the line 3c and the line 3d with the network 13f, and the TV-
1 and TV-2 are in a communication state (z in FIG. 9).

【0058】以上のように、図4乃至図6の構成では、
電源が投入されていないために作動可能状態にないテレ
ビ会議端末に対して会議通話開始前に予め接続を行って
おくことができるため、輻輳時などに回線の確保が難し
い相手端末に対しても事前に回線を予約接続することが
できる。また、予約接続のためにテレビ会議端末が設置
されている場所に人を配置して電源を投入させる必要が
ない。
As described above, in the configurations of FIGS. 4 to 6,
Since it is possible to connect in advance to the video conference terminal that is not in the operable state because the power is not turned on, even for the partner terminal where it is difficult to secure the line at the time of congestion etc. The line can be reserved and connected in advance. In addition, it is not necessary to place a person at the place where the video conference terminal is installed to turn on the power for reservation connection.

【0059】以上、図4乃至図11により本発明の実施例
を説明したが、図4乃至図11はあくまで本発明の実施例
の一部を示したものに過ぎず、本発明が図示されたもの
のみに限定されるものでないことは当然である。
Although the embodiments of the present invention have been described with reference to FIGS. 4 to 11, FIGS. 4 to 11 merely show a part of the embodiments of the present invention, and the present invention has been illustrated. Of course, it is not limited to only one.

【0060】例えば、上記の説明においては、作動可能
状態にない会議用端末(例えばTV−2)が予約接続状
態にあるときに、電源を投入し、発呼を行う(図7の
i、図8及び図9のq)と交換機が接続処理を行うとし
たが、図3により本発明の作用について説明したよう
に、発呼でなく会議用端末が作動可能状態となったとき
に接続処理を行うようにすることも可能である。この場
合は、予約接続状態にある会議用端末が電源を投入して
レイヤ1が立ち上がったとき、またはレイヤ1立ち上げ
後にレイヤ2(データリンク)が確立されたときに交換
機が接続処理を行うが、この場合においても本発明の効
果は変わらない。
For example, in the above description, when the conference terminal (for example, TV-2) which is not in the operable state is in the reserved connection state, the power is turned on and the call is made (i in FIG. 7, FIG. 8 and q) in FIG. 9 and the exchange perform connection processing. However, as described in connection with the operation of the present invention with reference to FIG. 3, connection processing is performed when the conference terminal is in an operable state instead of making a call. It is also possible to do so. In this case, when the conference terminal in the reserved connection state is turned on and the layer 1 is started up, or when the layer 2 (data link) is established after the layer 1 is started up, the exchange performs connection processing. Even in this case, the effect of the present invention does not change.

【0061】また、上記の説明においては会議用端末と
してテレビ会議用の端末を例として説明したが、会議用
端末はテレビ会議端末に限られるものではなく、多数の
会議参加者が相手からの音声を拡声して聴取するととも
に各参加者の発言を相手側に送信するように構成した音
声用の会議端末などであってもよい。この場合、テレビ
会議に比して使用する帯域が狭いとしても、輻輳等によ
り接続ができない可能性がある場合に多数の会議参加者
に無駄な時間を費やさせないという本発明の効果が同様
に発揮できる。
Further, in the above description, the video conference terminal is described as an example of the conference terminal, but the conference terminal is not limited to the video conference terminal, and a large number of conference participants hear the voice from the other party. May be a voice conference terminal or the like configured to loudly listen to and transmit the speech of each participant to the other party. In this case, even if the band used is narrower than that of the video conference, the same effect of the present invention that a large number of conference participants do not waste time when there is a possibility that connection cannot be established due to congestion or the like Can be demonstrated.

【0062】また、上記の説明においては会議を行う端
末を2台(1対)であるとしたが、予約接続を行う端末
が2台に限られるものでないことは勿論である。また、
図5及び図6においては予約接続端末を収容する交換機
を会議用端末を収容する交換機と別個の交換機であると
したが、会議用端末を収容する交換機の一つに予約接続
端末を収容しても本発明の効果が変わらないことは明ら
かである。
Further, in the above description, it is assumed that the conference terminals are two terminals (one pair), but it is needless to say that the number of terminals for reservation connection is not limited to two. Also,
In FIGS. 5 and 6, the exchange that accommodates the reserved connection terminal is a separate exchange from the exchange that accommodates the conference terminal, but the reservation connection terminal is accommodated in one of the exchanges that accommodates the conference terminal. It is clear that the effect of the present invention does not change.

【0063】更に、本発明は図示した実施例の構成を各
種の交換機の構成に合わせて変形することを排除するも
のではなく、例えば図5及び図6の予約接続制御部8を
交換機Eまたは交換機Fの制御装置11e, 11f内に設けて
も本発明の効果は変わらず、また、各交換機内の発呼処
理部(図示省略)と着呼処理部4が併合されていても本
発明の効果は変わらない。
Furthermore, the present invention does not exclude that the configuration of the illustrated embodiment is modified in accordance with the configurations of various exchanges. For example, the reserved connection control unit 8 in FIGS. 5 and 6 is used as the exchange E or the exchange. The effect of the present invention does not change even if it is provided in the control devices 11e and 11f of F, and the effect of the present invention is obtained even if the call processing unit (not shown) and the call processing unit 4 in each exchange are combined. Does not change.

【0064】[0064]

【発明の効果】以上説明したように、本発明によれば会
議通話などを行う場合に、作動可能な状態にない会議用
端末に対して会議の開始時刻前に回線を接続状態とする
ことができるため、会議参加者が参集してから回線が接
続できないために多くの会議参加者に無駄な時間を費や
させることがなく、また、予約接続のために会議用端末
に事前に人を派遣する必要もなくなるため、かかる通信
の利用者の使用の便を著しく向上する。
As described above, according to the present invention, when a conference call or the like is performed, the line can be connected to the conference terminal which is not in the operable state before the conference start time. Therefore, it is possible to prevent many conference participants from wasting time because the line cannot be connected after the conference participants have gathered.Also, dispatch the person in advance to the conference terminal for reservation connection. Since there is no need to do so, the convenience of use of such communication users is significantly improved.

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

【図1】 本発明の原理説明図(その1)FIG. 1 is an explanatory diagram of the principle of the present invention (No. 1)

【図2】 本発明の原理説明図(その2)FIG. 2 is an explanatory diagram of the principle of the present invention (No. 2)

【図3】 本発明の基本フローチャートFIG. 3 is a basic flowchart of the present invention.

【図4】 本発明の実施例構成図(その1)FIG. 4 is a configuration diagram of an embodiment of the present invention (No. 1)

【図5】 本発明の実施例構成図(その2)FIG. 5 is a configuration diagram of an embodiment of the present invention (No. 2)

【図6】 本発明の実施例構成図(その3)FIG. 6 is a configuration diagram of an embodiment of the present invention (part 3)

【図7】 本発明の実施例シーケンス図(その1)FIG. 7 is a sequence diagram of an embodiment of the present invention (No. 1)

【図8】 本発明の実施例シーケンス図(その2)FIG. 8 is a sequence diagram (part 2) of the embodiment of the present invention.

【図9】 本発明の実施例シーケンス図(その3)FIG. 9 is a sequence diagram (part 3) of the embodiment of the present invention.

【図10】 本発明の実施例フローチャート(その1)FIG. 10 is a flowchart of an embodiment of the present invention (No. 1).

【図11】 本発明の実施例フローチャート(その2)FIG. 11 is a flowchart of an embodiment of the present invention (part 2).

【図12】 従来技術の接続構成図[Fig. 12] Connection configuration diagram of conventional technology

【符号の説明】[Explanation of symbols]

1a〜1e 交換機 2a〜1d 会議用端末 3a、3c、3d 回線 4 着呼処理手段 5 着信接続処理部 6 予約接続処理部 7 予約接続手段 1a to 1e Exchanges 2a to 1d Conference terminals 3a, 3c, 3d Lines 4 Incoming call processing means 5 Incoming connection processing section 6 Reserved connection processing section 7 Reserved connection means

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 異なる交換機に収容された会議用端末間
で通信を行う場合に事前にパスを設定する回線予約接続
方法であって、 第1の交換機(1a)に収容された第1の会議用端末(2a)が
第2の交換機(1b)に収容された第2の会議用端末(2b)に
対して発呼を行い、前記第1の交換機(1a)が回線(3a)を
選択して前記第2の交換機(1b)に対して接続処理を行っ
たとき、 該第2の交換機(1b)の着呼処理手段(4) において、前記
第2の会議用端末(2b)が作動可能状態にあるときは着信
接続処理部(5) が通常の着信接続処理を行い作動可能状
態にないときは予約接続処理部(6) が着呼端末が会議用
端末であることを確認して前記第1の交換機(1a)に対し
て端末呼出中の通知を行うことにより前記第1の会議用
端末(2a)と前記第2の会議用端末(2b)間を回線(3a)を介
して接続状態とし、該接続状態の継続中に前記第2の会
議用端末(2b)が作動可能状態または発呼状態となったと
きに前記第1の会議用端末(2a)と第2の会議用端末(2b)
間を通信状態とすることを特徴とする回線予約接続方
法。
1. A circuit reservation connection method for setting a path in advance when communication is performed between conference terminals accommodated in different exchanges, the first conference accommodated in a first exchange (1a). The terminal (2a) makes a call to the second conference terminal (2b) accommodated in the second exchange (1b), and the first exchange (1a) selects the line (3a). When the connection processing is performed to the second exchange (1b), the second conference terminal (2b) is operable in the incoming call processing means (4) of the second exchange (1b). If it is in the state, the incoming connection processing unit (5) performs normal incoming connection processing, and if it is not in the operable state, the reserved connection processing unit (6) confirms that the called terminal is a conference terminal and Connection between the first conference terminal (2a) and the second conference terminal (2b) is made via the line (3a) by notifying the first exchange (1a) that the terminal is being called. State and , The first conference terminal (2a) and the second conference terminal (2b) when the second conference terminal (2b) is in an operable state or a calling state while the connection state is continuing. )
A line reservation connection method characterized in that communication is established between the lines.
【請求項2】 異なる交換機に収容された会議用端末間
で通信を行う場合に事前にパスを設定する回線予約接続
方法であって、 第1の交換機(1c)に収容された第1の会議用端末(2c)が
第2の交換機(1d)に収容された第2の会議用端末(2d)と
通信を行う場合に、前記第1及び第2の交換機(1c, 1d)
にそれぞれ着呼処理手段(4) 、該第1及び第2の交換機
(1c, 1d)を含む通信網内の複数の交換機より任意に選択
した第3の交換機(1e)に予約接続手段(7) を設け、 前記第1の会議用端末(2c)と第2の会議用端末(2d)間の
通信開始前の予め指定された時刻に、前記予約接続手段
(7) が前記第1及び第2の会議用端末(2c, 2d)に対して
発呼を行い、前記第3の交換機(1e)が第1の回線(3c)及
び第2の回線(3d)を選択して前記第1及び第2の交換機
(1c, 1d)に対して接続処理を行い、 前記第1及び第2の交換機(1c, 1d)は前記着呼処理手段
(4) において、それぞれ前記第1または第2の会議用端
末(2c, 2d)が作動可能状態にあるときは着信接続処理部
(5) が通常の着信接続処理を行い、作動可能状態にない
ときは予約接続処理部(6) が着呼端末が会議用端末であ
ることを確認して前記第3の交換機(1e)に対して端末呼
出中の通知を行うことにより前記第1の会議用端末(2c)
と前記予約接続手段(7) 間及び前記第2の会議用端末(2
d)と前記予約接続手段(7) 間をそれぞれ第1の回線(3c)
または第2の回線(3d)を介して接続状態とし、該接続状
態の継続中に前記第1の会議用端末(2c)及び第2の会議
用端末(2d)が作動可能状態または発呼状態となったとき
に前記第3の交換機(1e)に通信開始状態とすることを通
知し、 前記第3の交換機(1e)は通信開始状態の通知により前記
第1の回線(3c)及び第2の回線(3d)を接続して前記第1
の会議用端末(2c)と前記第2の会議用端末(2d)間を通信
状態とすることを特徴とする回線予約接続方法。
2. A circuit reservation connection method for setting a path in advance when communication is carried out between conference terminals accommodated in different exchanges, the first conference accommodated in the first exchange (1c). When the communication terminal (2c) communicates with the second conference terminal (2d) accommodated in the second exchange (1d), the first and second exchanges (1c, 1d)
Incoming call processing means (4), the first and second exchanges, respectively
The reserved connection means (7) is provided in the third exchange (1e) arbitrarily selected from a plurality of exchanges in the communication network including (1c, 1d), and the first conference terminal (2c) and the second conference terminal (2c) are provided. The reservation connection means at a predetermined time before the communication between the conference terminals (2d) is started.
(7) makes a call to the first and second conference terminals (2c, 2d), and the third exchange (1e) calls the first line (3c) and the second line (3d). ) To select the first and second exchanges
(1c, 1d) performs connection processing, and the first and second exchanges (1c, 1d) perform the incoming call processing means.
In (4), when the first or second conference terminal (2c, 2d) is in an operable state, the incoming connection processing unit
When (5) performs the normal incoming call connection processing and is not in the operable state, the reserved connection processing unit (6) confirms that the called terminal is the conference terminal and confirms that it is the third exchange (1e). The first conference terminal (2c) by notifying the terminal that the terminal is being called
Between the reservation connection means (7) and the second conference terminal (2
d) and the reserved connection means (7) between the first line (3c)
Alternatively, the connection state is established via the second line (3d), and the first conference terminal (2c) and the second conference terminal (2d) are in an operable state or a calling state while the connection state is continued. When it becomes, the third exchange (1e) is notified that the communication start state is set, and the third exchange (1e) notifies the first line (3c) and the second line by the notification of the communication start state. Connect the line (3d) of the
2. The line reservation connection method, wherein the conference terminal (2c) and the second conference terminal (2d) are set in a communication state.
JP32108692A 1992-12-01 1992-12-01 Line reservation connection method Withdrawn JPH06177982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32108692A JPH06177982A (en) 1992-12-01 1992-12-01 Line reservation connection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32108692A JPH06177982A (en) 1992-12-01 1992-12-01 Line reservation connection method

Publications (1)

Publication Number Publication Date
JPH06177982A true JPH06177982A (en) 1994-06-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP32108692A Withdrawn JPH06177982A (en) 1992-12-01 1992-12-01 Line reservation connection method

Country Status (1)

Country Link
JP (1) JPH06177982A (en)

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