JPS6199452A - Attendant board incoming control system - Google Patents

Abstract

PURPOSE:To use a by-pass line when a line on the way is blocked, by constituting an acceptance line into a single multiplex transmission line and giving a subscriber's number to this line similarly to general subscribers and connecting operator attendant boards to the acceptance line through an interface which connects them in parallel. CONSTITUTION:A single acceptance line 21 of attendant boards is multiplexed in time division like a PCM line, and the subscriber's number is given to the acceptance line 21. When the subscriber's number is transmitted in case that attendant boards 11, 12... are called from a general subscriber 41, this number reaches an exchange through a public communication line 4 similarly to call to general subscribers. The exchange 2 distinguishes incoming to general subscribers and that to attendant boards from each other and processes them to terminate the call on attendant boards. If the public communication line 4 is blocked, a by-pass line 6 is used to terminate the call on the exchange through a repeating exchange 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a reception console reception control system that allows calls to be received by transmitting a single subscriber number to a plurality of operator reception consoles.

[Conventional technology] A conventional telephone exchange connection system is shown in FIG.

In Fig. 7, 1.2 is an exchange, 11.12...
・ is the operator reception desk housed in switchboard 2, 21
．． 22... are a plurality of reception lines, and one-to-one correspondence with reception desks is not necessary. 30 is a PBX reception desk which usually has a representative number and has a plurality of connection lines 31, 32, -. 41.
42-- are general subscribers that are individually connected to exchanges 1 and 2, and each has its own subscriber number. Now, when the subscriber 41 of the exchange 1 calls the operator desk housed in the exchange 2, he dials a special number (commonly called a special number), and the exchange 2 is activated via the multiple dedicated lines 5. and the reception desk 11 connected in parallel. ．． Since the call arrives at 12.-, the operator accepts the call at either of them.

Dedicated line 5/Reception line 21.22--Reception desk 11゜1
2.-Although there is no particular relationship between the numbers, the central control unit (not shown) of the exchange 2 displays, for example, a lamp on the reception desk each time there is an incoming call. Therefore, when subscriber 41 calls subscriber 42, the operator responds sequentially.
A call is made via the public communication line 4, and if the line 4 is fully in use, the call is connected via the trunk exchange 3 via the detour line 6.

[Problems to be Solved by the Invention] In the conventional system shown in FIG. 7, a dedicated line 5 for the operator reception desk is provided separately from the public communication line 4, and the call volume (traffic volume) of each is Equipment costs were high because the number of lines needed to be installed was high. Furthermore, if there are so many connection requests that the dedicated line 5 becomes abnormally congested, calls cannot be received at the reception desk even if there is an empty line on the public communication line 4, or conversely, the public communication line 4 and detour line 6 are blocked. Therefore, even if the dedicated line 5 is vacant, a public communication call cannot be transmitted.

In addition, there was no function to retransmit numbers within the exchange network, so when a special number for a combined call was dialed and received to determine a route, a dedicated line was tied up.

Means for Solving the ε Problem] The means adopted by the present invention to solve the above-mentioned problem are as follows:
In a reception desk incoming call control system for a telephone network in which a plurality of reception lines connected to an operator reception desk are accommodated in an exchange, the reception line is treated as a single multiplexed transmission line and a subscriber number similar to that of a general subscriber is assigned. In addition, the operator reception desk is connected to the reception line through an interface that connects each other in parallel.

[Action] Since one subscriber number is assigned to the reception line of the reception desk, the subscriber can talk to any of the reception desks by simply dialing one subscriber number. At that time, a public communication line is used to receive the call to the reception line. Furthermore, since connections can be made via detour lines, the reception desk is less likely to be busy.

[Embodiment] FIG. 1 shows the configuration of an embodiment of the present invention, and corresponds to FIG. 7. In Figure 1, 1.2 is an exchange, 3 is a relay exchange, 4 is a public communication line, 6 is a detour line, 11.12.
- is an operator reception desk; 20 is an interface that connects the operator reception desks 11 and 12- in parallel;
Reference numeral 21 denotes a reception line of a single reception desk, which is time-division multiplexed, such as a PCM line, and 41', 42, . . . indicate general subscribers. A subscriber number is assigned to the reception line 21 and is registered in the central controller memory of the exchange (not shown). When a general subscriber 41 calls a reception desk 11, 12, .

As will be described later, exchange 2 receives calls to general subscribers,
To distinguish between incoming calls from reception desks and process them, and to allow calls to arrive at reception desks.

If the public communication line 4 is blocked, calls can be received at the exchange 2 via the relay exchange 3 using the detour line 6. Second
The figure is a diagram showing the central processing unit in the exchange 2 and the memory portion as part of the memory processing. That is, the received dial signal is temporarily stored in the number register 51, and then the accommodation position of the receiving terminal corresponding to the dialed number is extracted from the translation table TR52 in the memory. For example, when the upper two digits of the register number are "OX", it is assumed that it is a special number, and is processed as described below. If it is "9X", it is a general subscriber, so the current unaccommodated position is stored in the accommodation position register 53, and then the class table TERM 54 is checked using that number. The terminal type, dial/button phone, level, etc. are stored in a predetermined location ST and are read out. FIG. 3 shows an operation flowchart of the central control unit processor at this time. The incoming call is known in step (2), and the translation table TR is indexed in (2). Step (2) is provided in consideration of the case where reception desk reception is configured to also use special number reception. If it is not a special number, proceed to step (2), index the table TERM54, and check the contents of rsTJ in step (2). If the initial value of ST is "1", the reception desk receives a call, and when it is "0°, a call is received from a general subscriber," then proceed to either step ■ or step ■. When all reception desks receive an incoming call, a lamp will be displayed on the stand.If it is a special number in step ■, proceed immediately to step ■, and ■ will be placed in a waiting state (connected to the queue on a first-come, first-served basis) and a ring tone will be returned to the caller. do.

Even if all reception desks are busy, the caller is placed in a waiting state and the caller is sent to RB.
Sends T (ringing tone). This is because operators are responding one after another, so even if all calls are busy, there is a high probability that the call will become available soon. Step ■ indicates the monitoring of the machine response, and [phase] indicates the step of checking whether the machine has responded. Proceed to step ①, connect to one of the reception desks that responded by bus, and make a call at @.

Next, FIG. 4 and subsequent figures show exchange signal paths. Figures 4 to 6
In the figure, 11 and l2- are operator reception desks, and 20 is an interface INF.

Reference numeral 21 indicates a reception line, in which PCM transmission is used. 61 indicates a space division switch SSW, 62 indicates a primary time division switch, PTSW, 63 indicates a signal reception memory R3M, 64 indicates a secondary time division switch 5TSW, and 65 indicates a signal transmission memory. SSM, 66 is a signal reception distribution device SRD, 67 is a secondary multiplexing device SMPX, (68 is a secondary distribution device SDMPX).

69 is a tone generator TNG.

70 is the central controller CC1 71 is frame memory FM, 72 is main memory MM.

73 is a subscriber line concentration time division switch LTSW, and 74 is an incoming trunk ICT.

75 is a line processing processor CPU; 76 is an outgoing trunk OCT.

77.78 is Digital Terminal DT.

A PCM channel is used between the digital terminal 77 of the reception desk and the digital terminal 78 of the exchange 2, and is composed of a plurality of time slots. The channel and the reception desk are associated in advance with sequence numbers.

In Fig. 4, the dial signal to exchange vi2 first passes through the incoming trunk ICT 74 and is sent to the concentrating time division switch LTS.
W73. The signal reaches the central control unit CC70 from the primary time division switch PTSW62, the signal reception memory 1JRsM63, and the signal reception distribution device 5RD66 (indicated by route ■).

This dial signal is processed according to FIG. 3 to distinguish between incoming calls from the reception desk and incoming calls from general subscribers. When determining that the call has arrived at the reception desk, the central control unit CC sends the call to the reception desk 1 via route ■.
1. Receive a call to 12'-- and turn on the display lamp.

If there is an incoming call request from another subscriber during this process,
The central control unit CC links to the waiting queue and adds lighting of indicator lamps. Also, by route ■, the tone generator 69
A ring tone indicating that the call is waiting is sent to the calling line.

When the reception desk responds, as indicated by route ■ in FIG. 5, the central control unit CG is notified. This is done using specifically the control channel of the PCM line.

In FIG. 6, a communication path is established. FHJ Chi route■
From the reception desk via the space division switch 5SW61,
One of the communication lines or the call path to the originating subscriber is set up, and from the originating subscriber via the space division switch 5SW61, the secondary distribution device SDMPX68 is connected to the time division switch L.
The other side of the communication path to the reception console is set up via the TSW 73.

[Effects of the Invention] According to the present invention, when a subscriber makes an emergency call to call the police, etc., when the subscriber makes a call to the operator reception desk,
When a single subscriber number similar to that of a general subscriber is sent, the signal can arrive at the reception desk via a public communication line, so if the line on the way is blocked, a detour line can be used. Furthermore, there is no need to prepare a dedicated line as a transmission line, and the equipment cost is low as the exchange only requires an additional program for processing the translation table.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the processing of the memory part in the exchange 2 in FIG. 1, and FIG. An operation flowchart, FIGS. 4 to 6 are diagrams showing temporal changes in the operating signal path in the exchange 2 in FIG. 1, and FIG. 7 is a diagram illustrating reception of a conventional reception desk. 1.2 - Exchange 3 - Trunk exchange 4 - Public communication line 5 - Dedicated line 6 - Detour line 11.12
--Operator reception desk 20--Interface 21.22--Reception line 41.42--General subscriber 52-Translation table 53--Class table 70
-・Central control device patent applicant Fujitsu Limited Agent Patent attorney Eisuke Suzuki Figure 1

Claims (1)

[Claims] In a reception desk incoming call control system for a telephone network in which a plurality of reception lines connected to an operator reception desk are accommodated in an exchange, the reception line is treated as a single multiplexed transmission line and a subscriber number similar to that of a general subscriber is assigned. and the operator reception desk is connected to the reception line via an interface that connects the operator reception desks in parallel.