JPS6338393A - Key telephone device - Google Patents

Abstract

PURPOSE:To easily discriminate the busy mode of an inter-system connection adaptor from that of a key telephone of a remote system, by producing different busy tones for a calling subscriber between both busy modes. CONSTITUTION:The busy tone circuits 16 and 17 produce busy tones different from each other and a switch 18 perform changeover between both circuits 16 and 17. When an inter-system connection adaptor C is used, the circuit 16 is selected by the switch 18 and therefore the busy tone A is sent to a key telephone A1 through an analog switch 1. While the busy tone B delivered from a system B is transmitted from a handset 12 through an analog switch 8 of the adaptor C, the analog switch 1 of a system A and a hybrid circuit 14 of a key telephone A in case the inter-system connection adaptor C is not used. Thus a calling subscriber can hear the busy tone B.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a button telephone device that connects two key telephone systems to each other so that they can communicate with each other. 2 shows the construction of a conventional button telephone device of this type. In Figure 2, AQ and BQ are respectively the first
, main device A constituting the second button telephone system ASB
1 and B1 are the respective main devices AQ.

The button telephone C connected to BQ is an intersystem connection adapter that connects the first and second systems A and B to each other. 1 is an analog switch for configuring the call path and sending a busy tone to the telephone, and 2 is the telephone A1.
Or a take communication interface circuit for data communication with the inter-system connection adapter C, 3 is an extension communication path, and 4 is a memory for storing closed numbering setting numbers to determine the extension numbers of other systems. , 5 is a setting board for setting various data such as closed numbering and inter-system connection, 6 is a control device τq that manages the movement of the Pokun telephone system A body, and 7 is a board for data communication with the button telephone system A1B. 8 is an analog switch that forms a communication path between button telephone system A and button 71Fi1η system B, 9 is a microprocessor that manages the movement of inter-system connection adapter C, and 10 is a button telephone A data interface circuit is used for data communication with the main device I'Ao that constitutes system A, 11 is a dialing device for dialing, etc., 12 is a handset, and 13 is for managing the overall movement of telephone A1. The microprocessor 14 has 2 to 4 lines such as audio lines,
A hybrid circuit for converting from 4 wires to 2 wires, 15 is a hook switch contact that is interlocked when the handset 12 is turned on (4'), and 16 is a busy tone circuit with a busy tone source.

Next, the operation of the above conventional example will be explained. In Fig. 2, raise the handset 12 of the button telephone A1 and dial
If you dial the extension number, for example 400, of the button telephone B1 of Sen System\B from 1, the microprocessor-1
3 is the data j Shigenobu interface circuit 10.2'
)+I′11. ．． So, Ma, notify Icrobrosenoser 6. 3. Mike 1b. is set in memory 4 as closed numbering, so it is determined that number 400 is the extension number of key telephone system B. When the system connection adapter C is in use, the microprocessor 6 controls the analog switch 1 to connect the key telephone A1 and the busy tone circuit 16. analog switch 1
The busy tone sent through /・Ibrid circuit 1
4 from the handset 12, and the caller hears the busy tone. When the system connection adapter C is not in use, the microprocessor 6 controls the analog switch 1 to form a communication path between the key telephone A1 and the system connection adapter C, and at the same time, to open the communication ink face again. It informs the microprocessor-9 through circuit 2.7. Microprocessor-9 is
At the same time as the analog switch 8 is turned on, the microprocessor 6 of the system B is notified of the call to the number 400 through the data communication interface circuit 7.2. When the key telephone B1 with extension number 400 is busy, the microprocessor 6 of system B controls the analog switch 1 of system B to connect the system connection adapter C and the busy tone circuit 16 of /stem B. do. The busy tone of system B passes through analog switch 1 of system B, analog switch 8 of system connection adapter C, analog switch 1 of button telephone system A ((H3fl, button telephone A1... It is transmitted from the handset 12 through circuit 14. Therefore, caller-1 can hear the busy tone.

In this way, even with conventional key telephone devices, when inter-system connection adder C is in use, key telephone system A's busy tone is activated, and when another system's telephone is in use, button telephone system B's busy tone is activated. I can hear the middle tones.

However, if the Vl and button telephone system of the button telephone equipment of Jukito are the same, the busy tone sent out from the busy tone circuit is also the same, so the busy tone output from the busy tone circuit will be the same. Since the busy tone sounds the same whether it is the busy tone of the own system or the busy tone of the own system, the caller cannot tell whether the same system connection adapter is in use or the key phone of the other party's system is in use. , there was a problem in that it was not possible to judge based on the tone of the busy tone.

The present invention solves these conventional problems,
It is an object of the present invention to provide an excellent key telephone device in which a busy light is indicated by a tone.

Means for Solving the Problems In order to achieve the above object, the present invention provides a busy tone circuit having two tone sources and a switch for switching between the two busy tone circuits in each button telephone system. The system is designed so that when a call is made to the key phone of the other system, the caller hears a different busy tone depending on whether the same system connection adapter is in use or the other system's key phone is in use. It was completed.

Therefore, according to the present invention, the busy tone circuits with two different tones are switched by a switch, and busy tones of different tones and colors are transmitted.
I turned off the other party's phone.'' 4th, / Step j
, when the connection Agebuta is in use, the caller can hear the busy 7" 1 button when the other party's button/"menzume is in use.
is 17-5 degrees, and it is easy to determine which one is in use by VCt+1. It has this effect.

Implementation 1 row FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, 1 to 15r1 are the same as the conventional circuit shown in FIG. 2, and 16.17 are busy tone circuits that generate busy tones of different γ1 colors. 18 I:l:l double 12 seat
This is a switch for switching the on-circuits 16 and 17.

Next, explanation 1 will be given regarding the operation of the above embodiment. In the embodiment described above, the busy tone circuit switch 1B to the system j is connected to the busy tone circuit 16 side (C is switched, and the busy tone circuit 11ffi of B is switched to the busy tone circuit 16 side)
The selector switch 18' is switched to the busy tone circuit 17'. In FIG. 1, if the handset 12 of the button telephone A1 is raised and the extension number, for example 400, of the button telephone B1 of another system B is dialed from the dial key 11, the microprocessor 13 will transmit data. 2' to the microprocessor 6.

The microprocessor 6 determines that number 400 is the extension number of the key telephone system B because the first dial number 4 of the extension is set in the memory 4 as closed numbering. When the system connection adapter C is in use, the microprocessor-6 controls the analog switch 1 to connect the key telephone A1 to the busy tone circuit. Here, the busy tone circuit is set to the busy tone circuit 16 side by the busy tone circuit changeover switch 18, so the busy tone circuit 1
The busy tone A being sent from 6 is sent to key telephone set A1 through switch 1B and analog switch 1. The busy tone A sent to the button telephone A1 passes through the high print circuit 14 and is sent out from the handset 12, so that the calling party hears the busy tone A. If inter-system connection adapter C is not in use, microprocessor-6
controls the analog switch 1 to establish a communication path between the filling machine A1 and the system connection adapter C, and at the same time notifies the microprocessor 9 through the data communication interface circuit 2.7. When the microprocessor 9 turns on the analog switch 8, the same 11
．． 7, extension number 4 to system B's microprocessor-6 through data communication interface circuit 7.2.
Notify the call of 00. If the Bokunichi City Packing Machine B1 with extension number JIJ400 is busy, System B will control Analyzer 1 of System B and connect Agup/7C and System. 1, where the busy tone circuit of system B connects the busy tone circuit of system B to the busy tone circuit 171 ('
The busy tone B is set to the busy tone circuit 17' side of system B by the switch 18', and the busy tone B sent from the busy tone circuit 17' passes through the switch 18' of system B to the analog switch of system B. 1
The data is sent to the intersystem connection adapter C through the interface. The busy tone B sent from the system B passes through the analog switch 8 of the inter-system connection adapter C, the analog switch 1 of the system A, the hybrid circuit 14 to the key telephone, and is sent out from the handset 12. The caller can hear busy tone B.

In this way, according to the embodiment described above, by switching the two busy tone circuits, the tone of the busy tone of the button telephone system that connects the systems can be changed, so that it is possible to change the tone of the busy tone of the key telephone system that connects the systems. At this time, if the system-to-system connection adapter is in use, the busy tone of the own system is used, and if the telephone of the other party's system is in use, the busy tone of the other system is j':t'. This has the advantage that the calling party can hear the busy tone of each printed tone. According to the second embodiment, the tone of the busy tone that is sent depends on whether the intersystem connection adapter is in use or the telephone of the other party's system is in use. It has the effect of being able to know when the light is talking.

Effects of the Invention As is clear from the above embodiments, the present invention has 111. When calling a system extension, you may hear a busy tone with a j, -: single tone depending on whether the system-to-system adapter is in use or the 11-hand system key telephone is in use. This has the effect that it is possible to easily determine which one is in use by the busy tone heard by the person making the decision.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a button 1 (L-talk device) according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram of a conventional button lining device. 1. Analog switch; 2...Take communication interface circuit, 3...Extension communication path, 4...
Memory, 5...Progera j\setting board, 6...
・Microprocessor, 7・Take communication interface circuit, 8...Analog switch, 9...Microprocessor, 10...Data link (IE interface circuit, 11...Dial key, 12-...
・Transceiver, 13-...Microprocessor-114...
...Hybrid, 15...Hook switch contact, 1
6... Busy tone circuit, 17... Busy tone circuit, 1B... Changeover switch.

Claims (1)

[Claims] An inter-system connection adapter for connecting two button telephone systems to each other, a busy tone circuit with two sound sources with different tones, and a switch to switch between the two busy tone circuits are provided. This button telephone device is configured so that when a telephone is called, it can be determined by the tone of a busy tone transmitted to the caller whether an intersystem connection adapter is in use or a button telephone of the other party's system is in use.