JPH0389762A - Attendant board incoming call connection control system - Google Patents

Abstract

PURPOSE:To eliminate the need for connection control with a complicated software and to prevent the decrease of the processing capacity of a system by sending various kinds of service tones uniformly from an announcement trunk for an incoming call to an attendant board. CONSTITUTION:The subject system is constituted so that the announcement trunks ANT0, ANT1 are connected to the terminating call to the attendant boards ATTCON0, ATTCON1 from plural trunks TRK0 to TRKm and extension terminals TEL0 to TELn. Namely, the announcement trunks ANT0, ANT1 are provided with plural output means to a time division switch TSW, the storage means of plural kinds of message, and a means to receive an optional combined message pattern for plural kinds of the message and transmit the combined message pattern from its head to one of the output means to the time division switch TSW by being started by a central control device CPU. Then, various kinds of the service tones such as, at least, a ringing tone, a message and a holding tone are sent for the terminating call to the attendant boards ATTCON0, ATTCON1. Thus, the various kinds of the service tones following waiting are dealt with by the announcement trunks ANT0, ANT1, and the connection control by the software becomes unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connection control system for various types of incoming calls to a relay stand.

[Conventional technology]

Conventionally, in the incoming call connection to the relay stand, the
As shown in (B) and (C), when there is an incoming call from the game trunk TRK, the relay console ATTCON displays the incoming call visually and audibly, and at the same time sends a ring tone to the game player from the ring trunk RBT. However, when the relay console ATTCON responds, the game trunk TRK and the relay console ATTCON are connected via the time division switch TSW and the relay console interface circuit ATI. Also, Fig. 8 (A), (
As shown in B) and (C), when there are many incoming calls and many waiting calls to the attendant, a ring tone is first sent from the ring trunks RBTO and RBTl for the waiting calls, but even after a predetermined period of time, the attendant does not return to the attendant. If ATTCONO and ATTCONI are not empty, waiting for an incoming call is carried out while sending a first service message indicating that there is a call congestion from the talkie trunks TKTO and TKTI. Normally, the above service message is repeatedly sent in this state, but if an attempt is made to raise the service grade, music is played for a while from another talkie trunk TXT 2.3, and then a second service message is repeatedly sent. In addition,
In the same figure, TRKO.

TRKI, TRK2. TRK3 is a game trunk, ATI
O, ATII is the relay stand interface circuit and TSW
is a time division switch.

[Problem to be solved by the invention]

In the above-mentioned private branch exchange system, connection control of various service sounds associated with waiting is handled by software, which not only inevitably complicates the software processing but also causes a reduction in system processing capacity.

[Means to solve the problem]

The incoming call connection control method of the present invention is configured such that an announcement trunk is connected to a plurality of trunks and an incoming call from an extension terminal to the attendant. an output means for storing a plurality of types of messages, a means for accumulating a plurality of types of messages, and receiving an arbitrary combined message pattern for the plurality of types of messages upon activation from a central control device, and transmitting the combined message pattern from the beginning to the time division switch. means for transmitting to any of the output means of the
At least various service tones such as a ring tone, a message, and a holding tone are sent out in response to an incoming call to the relay stand.

Further, the announcement trunk is connected to various incoming calls to the relay stand, and when the announcement trunk is fully used, the incoming call is connected to a separately provided announcement trunk for abnormal congestion. It is.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Figures 1, 2, and 3 are relay system diagrams in one embodiment of the present invention, Figure 4 is a detailed bottom view of the announcement trunk ANTO in Figures 1 to 3, and Figure 5. , FIG. 6 is a diagram explaining the operation of the same embodiment.

As shown in FIG. 1, the relay stand ATTCONO is connected to the game trunk TRKO and extension telephone equipment O.

There is an incoming call on each ATTCONI, and the relay stand ATT
When the operator of CON0.1 is talking to the opposite station and the extension subscriber, as shown in Fig. 2, the incoming call to the relay console is routed from the opposite station trunk TRK1.2 and the extension telephone equipment L, 2. If so, the central control unit CPU sequentially connects each circuit of the announcement trunk ANTO, which has four terminals, by controlling the time division switch TSW, since the relay stand ATTCON0.1 is busy, and also activates the trunk ANTO. put on.

Here, referring to FIG. 4 showing the detailed bottom of the announcement trunk ANTO, the announcement trunk ANTO has a microprocessor MP that controls the inside,
The interface circuit INT with the central control unit CPU, the parallel-to-serial conversion circuit PSCONV0.1.2.3 and the driver circuit DRV0, 1, 2.3, which are the output section to the time division switch TSW, and the time division switch 12
A timing generation circuit TG that generates various internal control timings in response to a synchronization signal FH indicating a cycle of every 5 μ and a 2 MHz clock CLK, and a memory that stores four types of 16-second messages written using PCM signals. M.E.
M, an accumulation/counting circuit REG-CUT and a control circuit C0NT for individually activating four types of messages and transmitting them to the readout output section, and selectors So and Sl. When starting the message trunk ANTO, several types of patterns are defined for how to combine and output four types of messages, but here, it is started with the message output pattern shown in FIG.

Next, as shown in FIG. 2, the internal operation of the announcement trunk ANTO when the game trunk TRK1 is connected to the 0 circuit of the announcement trunk ANTO will be explained with reference to FIGS. 4, 5, and 6. explain. The trunk ANTO has a synchronization signal F with the time division switch TSW.
This is a 32-channel multiplex interface that interfaces with H and clock CLK. Timing generation circuit T
G is set to timing TM0.1 and control clock CLK1.G shown in FIG. 6 by synchronizing signal FH and clock CLK.
2 is generated for four circuits. When the central control unit CPU activates the 0 circuit, the processor MP outputs the first
In order to send out the first message, the address ADDO, which is the starting address of the first message in the memory MEM, is set to the accumulation/counting circuit REG-CUTO, which has information accumulation and counting functions, and the control circuit C0NT
Start it and make it operational. Selector SO is opened at timing TMO, and information indicating the contents of address ADDO is transmitted from accumulation/counting circuits REG-C, U'F to memory MEM, and as a result, an 8-bit PCM signal is sent to parallel-serial switching circuit. It is input to PSCONVO and is temporarily accumulated according to the timing of clock CLKI. This information (data) is converted from parallel to serial according to the timing of clock CLK2, and is also converted by the driver circuit D.
The signal is transmitted to RVO and then to time division switch TSW by gate signal TMI. At this time, the storage counting circuit REG-CUTO is simultaneously incremented by 1 by the synchronization signal FH, and becomes 12.
In the next cycle of 5 μSec, information is read out in a similar sequence, that is, the ringing tone RBT is continuously output. The microprocessor MP constantly scans the contents of the accumulation counter circuit REG-CUTO via the selector S1, and can check whether the first message transmission has been completed based on the count output contents. When the first message is finished, the grosser MP outputs the second message.
The contents of CUTO are set to address ADDI, which is the first address of the second message in memory MEM. By controlling in this manner, the messages shown in FIG. 5 can be sequentially output. It should be noted that the operations of the other circuits (1, 2, 3) of the announcement trunk ANFO can be controlled in the same way, so the explanation will be omitted.

Furthermore, if abnormal congestion occurs due to waiting for more circuits than the number of circuits in the announcement trunk ANTO, the abnormality can be dealt with by connecting multiple incoming calls to another announcement trunk ANT1 as shown in FIG. At this time, the trunk ANT1 notifies the trunk ridge state. Furthermore, in the state shown in FIGS. 2 and 3, the relay stand is empty and when the stand responds, the announcement trunk A
Incoming calls connected to the NTO are connected to the relay stand in the order of arrival. In addition, in FIGS. 1 to 3, LCO to LCn are line circuits, and ATI O and ATI 1 are relay stand interface circuits.

(Effects of the Invention) As explained above, according to the present invention, by uniformly transmitting various service tones from the announcement trunk in response to incoming calls to the relay stand, connection control using complicated software is no longer required. This can prevent a decline in system processing capacity.

[Brief explanation of drawings]

1, 2, 3, 4, 5 and 6 show an embodiment of the present invention, and FIGS. 7 and 8 show a conventional example. ATTCONo, 1... relay stand, ATIo, 1...
Attendant interface circuit, TRKO~m... game trunk, LCO~n... line circuit, ANTo. 1...Announcement trunk, CPU...Central control unit, Place O~n...Extension telephone, TSW...Time division switch, DRVO~3...Driver circuit, PS
CONVO~3...Parallel serial converter, TG/
...Timing generation circuit, MP...Microprocessor, INT...Interface circuit, So, 1...
・Selector, REG -CUTO~3...Accumulation counting circuit, C0NT...Control circuit, MEM...Memory.

Claims (1)

[Claims] 1. An announcement trunk is configured to be connected to incoming calls from a plurality of trunks and an extension terminal to an attendant, and the announcement trunk includes a plurality of output means to a time division switch and a plurality of output means to a time division switch. , storage means for a plurality of types of messages, and said output means for receiving an arbitrary combination of message patterns for said plurality of types of messages upon activation from a central control unit and outputting said combined message patterns from the beginning to said time division switch. 1. A relay stand incoming call connection control system, characterized in that the relay stand is provided with means for transmitting to any one of the above relay stand, and transmits at least various service tones such as a ring tone, a message, and a hold tone in response to an incoming call to the relay stand. 2. Connecting the announcement trunk to various incoming calls to the relay stand, and when the announcement trunk is fully used, connecting the incoming call to a separately provided announcement trunk for abnormal congestion. 2. The relay stand incoming call connection control system according to claim 1.