JPS61201553A - Telephone terminal message communication system - Google Patents

Abstract

PURPOSE:To utilize a medium other than a voice by using a telephone set having a display function so as to apply message communication between telephone terminal equipments and between an exchange and a telephone terminal equipment. CONSTITUTION:In an exchange system having a telephone set 3 having a display means 1, the telephone terminal equipment 3 inputs a message by a means 5, the message by the means is displayed on the display means 1 and confirmed and then the message displayed while utilizing a line assigned to the telephone set 3 is sent to realize the message transfer between the telephone set and the exchange. Not unidirectional message transfer from the exchange but message communication between telephone sets is attained. Further, it is preferred to utilize a line to transmit/receive a control signal assigned to the telephone set for the message transmission from the terminal equipment. Thus, the speech communication by a telephone set is not hindered at all.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a telephone terminal message communication system that allows message communication to be performed simultaneously with telephone exchange.

[Technical background of the invention and its problems]

Telephones, facsimiles, etc. are communication media that support the information society. Although these techniques are very good, they also have drawbacks. For example, the telephone is the most widely used and convenient device, but it can only transmit voice, and from a system perspective, voice mail provides a unique service. Although voice mail is advantageous in that it allows the caller to transmit information regardless of the state of the called party, it uses the voice medium that telephones use, and it is useful to demonstrate how telephones can be used differently. Not only that, but the service was also inadequate.

[Purpose of the invention]

It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide a telephone terminal message communication system that can utilize media other than voice using the most widely used telephone.

[Summary of the invention]

The present invention uses a telephone terminal having a display function to perform message communication between telephone terminals and between telephone exchanges and telephone terminals. That is, in an exchange system having a telephone terminal (3) having one display means (1) as shown in FIG. Display on the display means (1) of the telephone terminal (3) K after confirmation.
By transmitting the above-mentioned displayed message using the reassigned line, message transfer is realized between the telephone terminal and the exchange.

〔Effect of the invention〕

According to this invention, message communication is possible between telephone terminals, instead of unilateral message transfer from the exchange side, and a new service can be realized.

Further, it is preferable that the message transmission from the terminal utilizes a line assigned to the telephone terminal for transmitting and receiving control signals. This button does not interfere with voice communication by telephone.

[Embodiments of the invention]

Next, an embodiment of the present invention will be described with reference to the drawings.

A system according to this embodiment is shown in FIG.

This system consists of a telephone terminal (hereinafter referred to as a telephone terminal, in principle, of this type) equipped with a display (IT) and an exchange system (13).

In this system, when a message is mechanically instructed on a - telephone terminal (11), the message is transferred and displayed on another telephone terminal (11).

The message is forwarded when the message is sent directly from the telephone terminal (11) of - to another telephone terminal (11), or from the other telephone terminal (11) to the telephone terminal (11) of -.
11). One feature of the present invention is that an identifier is used for message transfer, as will be described later.

Next, each group will be explained in detail.

First, the exchange system (13) is as shown in FIG.
It includes a line card (15) that guides the communication terminal (11) to the switching system (13). The line card (15) and the telephone terminal (11) are connected by two-wire bidirectional burst transmission (ping-pong transmission) as described later. Note that the power supply line is omitted in FIG. 2. For the same line card (15), multiple (2 to 4) telephone terminals (
11) is connected.

From the line card (15), the PCM highway (17)
) extends to the time switch circuit (19). This time switch circuit (19) includes a line card (15)
Not only the trunk card (21L), the tone circuit (23), and the conference circuit (25) are also PCM no-way (2
7), (29), and (31). P
A voice signal or a data signal is carried on the CM no iway.

This is used to change time slots, etc.

The trunk card (21) is a card to which a central office line, private line, etc. are connected. The tone circuit (23) sends various tones to the telephone terminal (11) and the central office line. Various tones are supplied from this circuit (23) as digital signals. The conference circuit (25) performs calculations when a call is made between three or more parties. In addition, the line card (15
), time switch circuit (19), trunk card (
21), a tone circuit (23), and a conference circuit (25) are supplied with a reference clock from a clock generator (26),
Behavior is defined.

A pair of control lines are connected to the line card (15), trunk card (21), tone circuit (23), and gold film circuit (25). The other end of the control line is I/1) (33
) is connected to -・ro.

A common bus (35) is provided for Ilo (33), and this common bus (35) is connected to CPU (37).
), floppy disk (FD) (39), memory (4
1), the input/output circuit (43) is hanging. The floppy disk (39) stores programs and various data for exchange control operations.

The storage contents of the floppy disk (39) are stored in the memory (4).
1) and the storage contents in the memory (41) are
39) is used for backing up the memory (41).

A data terminal (45) is connected to the input/output circuit (43). The data terminal (45) is used for inputting customer data and maintenance management data as will be described later. The customer data is attribute information such as the type of telephone terminal, telephone number, and key function assignment in the case of a multi-function telephone. In this embodiment, messages are also input from the rvy'-data terminal (45).

Next, a transmission method between the telephone terminal (11) and the line card (15) will be explained. As mentioned above, this embodiment uses a two-wire bidirectional burst transmission method.

In this system, signals are sent and received between the telephone terminal (11) and the exchange (line card (15)) in a bong-bong manner. As shown in FIG. 3, signals in one predetermined format are transmitted in bursts from the line card (15) to the telephone terminal (11). This versus this? Perform within 125 μsee.

Next, the signal format in this transmission system will be explained.

As shown in FIG. 4, 12 bits form one frame. The first bit is the frame synchronization bit (F')
, the next 8 bits (V) are assigned to the audio signal.

Next, 1 bit for data (D), 1 bit for control signal)
(C) is assigned, and the last 1 bit is parity (
It is for P). If you look only at the audio signal, it is 125 μsec.
8 bits are transmitted every time, 64KbpsP
Real-time CM transmission is realized.

Data CD) is used when a data terminal or the like is connected to the telephone terminal (11) and data is transmitted simultaneously using the telephone line. When not transmitting audio, the audio signal beep (V) may also be used. control signal beep)
(C) is a signal for controlling the normal telephone terminal (11), and one unit is made up of 12 bits. That is, the signal in the format shown in FIG. 4 is received 12 times, and the control pin (C)
By accumulating 12 times, the control signal shown in FIG. 5 is obtained (12 multi-frame configuration). On the contrary, the data may be transmitted by dividing it into individual bits. Parity (P) is a bit for parity check.

As shown above, the telephone terminal (11) and line card (15)
) is a two-wire bidirectional burst transmission (ping-pong transmission), but each signal is diphase encoded on the transmission path. In diphase encoding, the level changes in synchronization with the clock, and
For "1", the signal level is constant in the same clock interval, and for "0", the signal level changes in the same clock interval.

A specific example in which a DP signal sequence is defined for an NRZ signal sequence is shown in FIGS. 6(a) and 6(b). In addition, here NRZ
Signal only means that the data is expressed with a data ratio of 100%. Therefore, here NR
, Z signal string is a telephone terminal (11), a line guard (15)
) can be considered as digital data. Note that the necessary hardware configuration will be described later.

Next, the telephone terminal (11) will be explained in more detail.

The major feature of the appearance of the telephone terminal (11) here is that it is equipped with an LCD (51) as shown in Figure 11g7. Below this L CD (51), there is a soft key (53).
) to (63) are provided. One softkey (
65) is provided outside the LCD (51). The functions of the soft keys (53) to (65) are assigned depending on the state of the terminal. Names of functions assigned depending on the state of the terminal are displayed in portions corresponding to soft keys (53) to (63) in the L CD (51).

In addition to the soft keys (53) to (65), function keys (67) to (79) are provided.

Various functions are programmably assigned to the function keys (67) to (79).

To the right of these keys (67) to (79), this key (6
7) to (79) are provided. Furthermore, the funkshi l balloon
In addition to (67) to (79), function keys (9)
5) to (1o1) are provided. Funk keys (67) to (79), (95) to (
101), fixed functions such as auto-dial are assigned in a fixed manner, and are not assigned according to the status of the terminal. Telephone terminal (1
1) In the center part above the housing, there is a dial pad (102).
is provided. In addition, there is a speaker (1
03) is provided with a handset (105). This handset (105) is connected to the housing via a cord (107).

Next, the electronic configuration of one telephone terminal (11) will be explained according to the eighth factor. Here, the telephone terminal (11) is connected to the data terminal (
111) and a drawing phone tablet input device (113) will be described. This terminal (
11) includes Bing Bong transmission system (115) and audio system (11).
7), an operation system (119), and a processing system (121).

The Bing Bong transmission system (115) sends and receives signals to and from the telephone (109), and further transmits voice data to the voice system (117).
) A processing system for removing tofu and digital data (121),
It is assumed that the communication is with the data terminal (111). Audio system (11
7) converts the digital signal and audio. The operating system (119) can be considered as a man-machine interface between the operator and the processing system (121).

The processing system (121) performs certain processing on data and controls the overall operation of the terminal (11).

The audio system (117) includes a handset (105) and a speaker (
103). This audio system (117) is a processing system (1
21) and under the control of the timing signal T2 (described later), the codec color filter (127) converts the PCM audio data from the Bing Bong transmission system (115) into an analog audio signal. . This analog audio signal is sent to a handset (105) or a speaker (loudspeaker) via a buffer amplifier circuit (129) and becomes an audible sound. The codec (codec) has both the functions of an encoder (coder) and a decoder (decoder), and is a PCM coder/decoder. CPU (12) for this codec color filter (127)
5) is controlled by the common S (123) and the audio L10 (1
31).

The analog audio signal sent from the handset (105) is sent to the transmission frame register (133) of the Bing Bong transmission system (115) via the codec color filter (127).
sent to. The output of the transmit frame register (133) is sent to the parity addition circuit (135).

The output of the parity addition circuit (135) is sent to the NRZ/Dr conversion circuit (139) and sent to the telephone line (109) via the hybrid (139). The above is the transmission part of the Bing Bong transmission system (115). On the other hand, during reception, the output from the hybrid circuit (139) is supplied to the DP/NRZ conversion circuit (141).

The output of the D P /N RZ conversion circuit (141) is sent to the receive frame register (143). The reception frame register (143) is for audio signals (V) and for data (D).
).

It has each area for control signals (C). The number of bits is 8 bits, 1 bit, and 1 bit, respectively.

Of the reception frame register (143), the voice signal (V
) area data is codec color filter (127)
becomes the input. Similarly, data in the data (D) area is sent to the data terminal (111) via I 70 (R8232C) (145). The data in the control signal (C) area is stored in a 12-bit shift register (SR) (
147). Transmission frame register (133)
has a similar structure and consists of an 8-bit audio signal (V) area, a 1-bit data (D) area, and a 1-bit control signal (C) area. The output of the above codec router (127) is input to the audio signal (V) area of the transmission frame register (133). Data from the data terminal (111) is input to the data (D) area via I 10 (145). The control signal (C) area has a 12-bit shift register (
149) is input. The 12-bit shift registers (147) and (149) are connected to the common ds (123).
) is connected.

Next, the operation will be explained. Codec color filter (127)
The PCM audio signal from 8-pitsu) is temporarily stored in the audio signal (v) area in the transmission frame register (133). On the other hand, control data is sent from the CPU (125) in 12-bit units and is temporarily stored in a 12-bit shift register (149) via a common path (123). This 12-bit shift register (149)
1-bit data is stored in the control signal (C) area. Data is sent from the 12-bit shift register (149) once every 125 μsec. This is controlled by timing signal TIK. Data from the data terminal (111) is stored in the data CD area via the I/O (145). I/O(
145) is also controlled by the timing signal Tl.

Once 10-bit data is prepared in this way, the parity addition circuit (135) adds one bit each to a frame synchronization bit (F) and a parity bit (P). This format is similar to the format shown in FIG.

This data is output in the form of a data ratio of 100%.

This is NRZ (Non-eturn-T).

Zero) signal has the same format. This signal train is subjected to die-cut encoding in the NRZ/DP conversion circuit (137). Thereafter, it is sent to the telephone line (109) via the hybrid circuit (i39).

At the time of reception, the signal subjected to Diane's encoding is sent from the hybrid circuit (139) to the DP/NRZ conversion circuit (
141), it is converted into an NRZ signal sequence. This signal is in units of 12 bits, and includes a frame synchronization bit (F).
, Harity pit (P) are excluded, and the data of the 2nd to 9th bits from the head are stored in the audio signal (v) area. Next, the 10th bit is placed in the data (D) area,
The 11th bit is stored in the control signal (C) area.

The data in the audio signal area is passed through a codec color filter (12
7) and converted into audible sound as described above. Data in the data area is sent to the data terminal (111) via the I/O (145). Data in the control signal area is sent to a 12-bit shift register (147), and once 12 bits have been accumulated, it is sent to the CPU (125) via a common path (123).

The operation system (119) includes an LCD controller (151) that drives and controls the LCD (51). Dial pad (102), soft keys (53) to (65), function keys (67) to (79), (95)
) to (101) are input from I/O (1
53), CPU (12
5). In addition, the CPU that obtained information about the operation status of the function keys (67) to (79)
(1257 performs predetermined processing, and also performs predetermined processing and drives the LED drive system (155) K predetermined LED (81) to (93).
) is given the command to display.

The CPU (125) performs predetermined processing according to the program stored in the ROM (157). In addition, the data terminal (111) has an I/O (145), an I/O
Data is exchanged via (159). The input pattern information from the input device (113) is sent to the CP via I10 (159).
0 transmitted to U (125) Next, the specific configurations of the NR2/DP conversion circuit (137), the hybrid circuit (139), and the DP/NRZ conversion circuit (141) will be explained according to FIG. These circuits (137), (139)? (141) is a telephone line (109) and a hybrid carp/I/(161) t-
electrically connected via the Then, the NRZ/DP conversion circuit (137), the transmission section (163) centered on k, and the DP
/NRZ conversion circuit (141)
5).

With this configuration, the signal from the telephone recall (109) is obtained as digital data, and the digital data is subjected to diphase encoding and sent to the telephone line (109).

Next, the operating clock of the telephone terminal (11) will be explained. In this embodiment, the operating clock is obtained from the frame detection circuit (167) and timing control circuit (169) shown in the W2B diagram. In other words, the claim detection circuit (1
67), a frame synchronization bit is detected from the received signal, and a clock signal is generated in synchronization with this detection timing.

This generates a timing signal Tx-T in response to the above frame detection from a clock signal from a clock generator (not shown) (provided in the timing generation circuit (169)).
Generate 4. Timing signal T is 8 KHz, timing signal T2 is halo 4 KHz, timing signal T3 is 256 KHz11 timing signal T4 is 2 MHz
This is the clock signal. Furthermore, as mentioned above, data is written from the codec color filter (127), I10 (145) and 12-bit shift register (149) to the transmission frame register (133), and data is written to the parity addition circuit (135). Since data is read, it is natural that the writing and reading must be out of phase. Receive frame register (14
The same applies to 3).

Next, the line card (15) will be explained according to FIG. This line card (15) includes a hybrid circuit (201), a transmission/reception circuit (203), and a reception frame register (205).

Hybrid circuit (201) and transmitter/receiver circuit (203)
The configuration is the same as the specific configuration shown in FIG.

That is, the signal of the telephone line (109) is decoded and N
It converts the NRZ signal into an RZ signal, and conversely converts the NRZ signal into a diphase signal (DP signal).

Here, the NRZ signal may be considered the same as digital data. The signal from which the diphase encoding has been decoded is processed by a frame synchronization signal detection circuit (204).
F) is detected, and the data of the 2nd to 9th bits from this signal 1-(counted from F) are stored in the audio signal area.

The 10th bit data is stored in the data area. 1
The first bit of data is stored in the control signal area.

Next, the data in the audio signal area and data area is stored in the register (207?). (209). A multiplexer (213), a counter (215), and a comparator (217) are provided for the registers (207) and (209).

This clock signal is supplied via a clock signal line (219) from a clock generator (26) shown in FIG. This clock signal is used by the counter (215)
It is also supplied to the counter (215) and counted. The counter (215) is initialized by a PCM frame synchronization signal.

This PCM frame synchronization signal is transmitted through the frame signal line (22
1) from the I/O (33). Although it is omitted in FIG. 2, it can be considered that it is provided together with the PCM highway (17) or the like.

Therefore, the counter (215) counts the clock signal from the light of the PCM frame, and the comparator (21
In 7), a match with a predetermined value is detected. This predetermined value is a unique address determined for each line card, and is also a time slot number assigned to each line card (or telephone terminal (11)) as will be described later. In addition, if multiple telephone terminals (11) are set for the line card (15), if the unique address and the number of counting clock signals match in the comparator (217), this result is sent to the multiplexer ( 213) and a demultiplexer (223) to be described later.

The multiplexer (213) receives this and selects the register (
207), (209) are multiplexed and PCM
Send it to Highway (17). As mentioned above, this PCM highway (17) is connected to the time switch circuit (19).
It is connected to the.

On the other hand, the control signal stored in the control signal area of the reception frame register (205) is stored in the 12-bit shift register (211). Once 12 bits have been stored, one control signal is sent via the bus (225).
cPU (227). CPU (227
) is decoded by certain processing according to the memorized contents of the memo IJ (229), and if necessary, the contents are transferred to the I/J (229).
0 (231) to the data highway (233). The data sent to the data highway (233) is sent to the CPU (37) and subjected to predetermined processing.

The above is the transmission from the telephone terminal (11) to the exchange side. Next, the transmission from the exchange side to the telephone terminal (11) will be explained. PCM audio data sent via the PCM highway (17) is time-division multiplexed. This data is loaded into the line card (15) at the demultiplexer (223). As mentioned above, each line card (15) is assigned a unique address, which also serves as the number of the time slot assigned to each line card (15).

As mentioned above, the comparator (217) p c bi
.

It checks whether the clock value counted from the start of the frame and the unique address match, and when they match, the demultiplexer (223) is also notified of this result. The demultiplexer (223) receives this and separates the received PCM signal into voice and data (-1 register (235), (
237). register (235), (23
7) operates by receiving a clock signal from the clock signal line (219).

The data sent via the data highway (233) is data necessary for exchange control, and is distinguished from the data transmitted via the PCM highway (17)k described above. Data sent via the data highway (23) is transferred via Ilo (231) to C
P U (227) and further register (239)
is accumulated in

Next, registers (235), (237), (239
) is transferred to the transmission frame register (241). This transmit frame register (241) is divided into three areas; the receive frame register (205)
, or the reception frame register (1) at the telephone terminal (11).
33) etc. This transmit frame register (
The contents of 241) are sent to the transmitting/receiving circuit (203).

In this circuit (203), the data is subjected to die-coding and sent to the telephone line (109) via the hybrid circuit (201).

Next, message communication will be explained. In this embodiment, a message is separated into a fixed part and a variable part, and the former is expressed by an identifier.

The correspondence between an identifier and a fixed part of a message (hereinafter referred to as a fixed message) is set, for example, as shown in Table 1 (hereinafter referred to as an identifier table).

Among the fixed messages in Table 1, the underlined 1st
The front part is the variable part of the message. The reason for dividing the message into a fixed part and a variable part is to focus on the fact that messages necessary in daily life and work are patterned. Variable parts are not always necessary.

This identifier-fixed message correspondence is maintained and stored in at least all of the display telephone terminals (11). There are two ways to remember this. One is to store in ROM, and the other is to store in RAM. In the first embodiment, an example will be described in which the above-mentioned ROMK correspondence is stored.

Since the ROM is a read-only memory, it is necessary to store the above correspondence in advance and prepare it in each terminal (11). In this case, it is not necessarily necessary for the exchange side to have this support in advance, but here, terminal (11)
The same storage contents as in the ROM are stored in the memo IJ (41) or floppy disk (39). The initial input will be described later.

Next, message communication will be explained. There are two modes of message communication in this embodiment. These are a message setting request mode and a message sending request mode.

In the message setting request mode, when the operator of the telephone terminal (11) is absent or otherwise unable to answer the telephone (11), a message is set in advance and the operator of the telephone terminal (11)
), the above message is forwarded to the caller. In the message sending mode, when a call is made to another terminal (11) and the called party does not respond, a message is sent to the called party.

First, the message setting request mode will be explained. To use this mode, first press the key (6) on the telephone terminal (11).
5) Operate. This key (65) is a message setting/selection key. When the first key (65) is pressed, the CPU (125) of the telephone terminal sets the operating state to the detection type and message setting mode. In this mode, the CPU (125) reads the contents of the identifier "1" from the identifier and displays it on the LCD (51). Here, "Gaishetsu, Chitatsuki" corresponding to the identifier "1" is displayed. Since this is not the message that is needed now, the operator presses the message setting/selection key (65). Then, the contents of the identifier "2" are displayed.

The same operation is repeated thereafter, and when the contents of the identifier "5" are displayed, the operator presses the confirmation key.

As a confirmation key, you may use the mouth in the Daikiru pad (102), or use the funkushi entry keys (67) to (79).
), (95) to (101) may be selected and set appropriately.Also, soft key (53)
A function may be assigned to one of (63). The fixed message settings are now complete.

Next, input the variable message "03: OOJ."

This changes the dial pad (102) to rOJr3JrO
Press JrOJ. CPU (125) uses this rOJ
r3J rOJ rOJ is 0 in the underlined 9 area in the message displayed on the LCD (51).
3:00 is displayed. Then [Kaigichu 03:
00 Made” is displayed.

At this time, the CPU (125) uses the RAM (156
) K identifier “5” and variable message “0300” as “
Store it as 50300j. At the same time this 1'-5
0300'' to the exchange as data.

This will be explained in more detail. This data is sent in the same manner as the control signal of the telephone terminal (11). In this embodiment, since the ping-pong transmission method is adopted, the control signal bits in the format shown in FIG. 4 are used. Furthermore, the data itself used here is made up of 12 bits.

First, the CPU (125) sends a message setting request to the exchange. An example of this setting request is shown in FIG.

Here, one unit is 12 bits, Co is a bit for frame synchronization, and C1 and C2 are bits for this nickname (even numbers in this example). Such 12-bit data is transferred from the CPU (125) to the 12-bit shift register (
149) (shown in FIG. 8) and sent to the converter according to the procedure described above. Subsequently, the message identifier number, variable data (time in the message, month and day, etc.), and message setting completion are sent.

On the exchange side, the above data is sent to the line card (1
5) and sends it to the CPU (37). CPU
(37) receives and recognizes the message setting request, and then recognizes the message identification number and variable data and stores them in the message registration area of the memory (41).

The structure of the message registration area of this memo IJ (41) will be explained. In this example, it is designed to be compatible with boats.
The message registration area is configured taking customer data into consideration. A concrete example of this is shown in FIG. The port refers to the output terminal on the terminal (11) side of the line card (15) in FIG. 2, for example. When referring to the boat number, a number obtained by adding two pits to the above-mentioned unique address may be used here. The customer data includes the type status of the telephone terminal (11),
These are attributes such as telephone numbers and key function assignments. Terminal (11
) Types include ordinary dial telephones, pushbutton phones, display telephones, and data terminal telephones (for example, combi-taphones). The state of the telephone terminal (11) is a level concept used in the state transition diagram, and as shown in Fig. 13 and Table 2, the state of the telephone terminal (11) is the terminal ( 11). This embodiment is characterized in that a state "message setting in progress" is provided as state "7".

A setting message is stored for such customer data corresponding to the boat. This set message consists of a fixed data section consisting of an identifier and a variable data section. Here, the identifier is "5" and the variable data section is "0300."

When the inside of the converter is set up in this way, if a call is made to the message sending terminal (11) from a terminal (11) other than the terminal (11) that sent the message, a call is made. This search checks the status of the called terminal. If the state is "0", what is the number of times? #A connection is made, but @CPU (37) recognizes that terminal "v" is in state "7" and message setting is in progress. Thereafter, the message being set is called and the data l'-50300J is sent as control data to the calling terminal.

The sending procedure at this time is the terminal (11) when setting the message.
It is the same as the sending procedure from C to the exchange, and
The P U (37) sends the control data to the calling terminal via the line card (15) or the like in the format shown in FIG. Line card (15) and telephone terminal (11)
), the ping-pong transmission method is used as described above.

The CPU (125) of the terminal that received the message transfers the memo IJ using the identifier after recognizing the control data.
(157) calls the contents of the identifier table. Here, we will call "Kaigichu: Made" which corresponds to "5". However, when storing the identifier table, the characters corresponding to "Kaigichu: Made" may be stored as they are, or a character generator may be separately prepared and the character codes may be simply stored.

Next, the CPU (125) displays the called fixed message and variable data on the LCD (57). In this way, the calling terminal displays the message ``Dear 03:00'', indicating that the message has been forwarded. At the same time as this display, the number of the called terminal, the operator of the called terminal, etc. may be displayed.

Next, the message sending request mode will be explained. This is an essential mode when you want to make an urgent contact even when the called terminal is busy.

For example, when a secretary wants to contact her boss as soon as possible to inform her of a visitor.

In such a case, a busy tone is sent to the calling terminal from the tone circuit (23) of the exchange.

When you receive a G-tone like this, the telephone terminal (11)
The CPU (125) uses keys (53) to (63).
) is assigned the following functions: camp-on, automatic call back, recall, message transfer, and interrupt. L at the same time
In the parts corresponding to keys (53) to (63) in the CD (51), CPO (camp on), ACB (automatic call back), RCL (recall), LMG (message forwarding), 0
Display UR (interrupt).

Next, the operator presses the key (59). This softkey (
59) is in the process of transmitting a message in this state,
By pressing this key (59) e, the message created by the following process will be transferred to the called light. First, message settings are displayed to the CPU (125). Then, similarly to the message setting request mode described above, the identifiers are called and the contents of the identifier "1" are displayed. The fixed portion of the message is determined by operating the keys (65) and the area around the dial pad (102). Here, it is assumed that the identifier "6" is selected. In this example, variable data is not necessary and the 15th
A message is first sent to a converter according to the procedure and format shown in the figure.

When the CPU (37) of the converter fully recognizes the message sending request, it sends out the data in the format terminal shown in FIG. 15 as is as control data for the terminal (11). By doing this, the message can be transferred even if the called terminal is busy (or in any state), and since the identifier is used, the amount of transfer can be greatly reduced.

In the above-mentioned embodiment, an example in which the identifier is stored in the yROM has been described, but naturally the identifier is stored in the RAM (Random Acc
It can also be stored in Ess Memory). Moreover, in this case, the disk (39
), it is assumed that at the same time that the identifier-message correspondence is input from the data terminal (45), the identifier-message correspondence is not stored in each telephone terminal (11) in the initial state. It is assumed that the hardware configuration is the same as in the previous embodiment.

First, inputting the identifier-message correspondence to the floppy disk (39) will be explained.

The data terminal (45) is a maintenance terminal, and when writing a message from this terminal (45), an authorization code is input. For example, when the authorization code is [0003J, the following processing is a diagnosis, when it is "0002", it is set customer data, and when it is "0001", it is determined that a message is written.

Here, the authorization code “0001Je” is displayed.
Once entered, subsequent data will be the identifier number and (fixed)
The CPU (37) recognizes it as a message. Therefore, this content is stored in the floppy disk (39) or the RAM portion of the memory (41). This stored content is not limited to Table 1. Once the correspondence between the identifier number and the message has been determined in this way, a process is performed to transfer the stored contents to each telephone terminal (11). Of course, the concept of transfer means that the above contents may be stored in the ROM within the exchange.

Now, it is preferable to transfer the above-mentioned stored contents (correspondence between identifier number and message) when the converter is connected to a TIL source, when a new terminal is connected, when a message is changed, when a new item is added, etc. First, transfer at power-on will be explained.

Converter number 1! When the power is turned on, the conversion program stored on the floppy disk (39) and the necessary data (which may also include data regarding the aforementioned messages) are loaded, as shown in Figure 16. , and stored in the memory (41).

Next, an initial program, which will be described later, is started, and after the processing by this program is completed, the supervisor executes I10 processing, exchange processing, M ground processing, fault processing, etc. in priority order.

Next, the initial program will be explained. As shown in FIG. 17, this program starts with initializing the entire hardware, especially clearing the data area memory. This is because the initial state of the data area cannot be guaranteed just by using the conversion program and loading the necessary data. The data area is a storage area for data regarding the mounting state of line cards and the like as shown below, and by clearing the data, the memory is initialized prior to storing correct data.

Next, the line card (15), ) rank card (21)
) etc., check the implementation status. For this purpose, the CPU (
37), the inquiry signal is sent to the line card (15) and e-trunk card (21) using the control signal line (data highway) t%IJ. In response, the CPU (227) of each line card (15) etc. sends back a response that it is installed to the CPU (37).

For this reply, for example, a unique number given to each line card (15) may be used. As the unique number, k may be used by omitting the lower two bits of the unique address used as the reference value of the comparator (217) shown in FIG. Here, the lower two bits are discarded and the unique address is originally a telephone terminal (11).
In this embodiment, one line card (15) has four terminals (one
1) is connected, the line card (15) is identified by something other than the lower two bits of the unique address, and the telephone terminal (11) is identified including the lower two bits. If the number of terminals (11) connected to the line card (15) changes, the expression of the unique address will also change, so the expression of the unique number here will also change. By receiving such a response 1 (CPU (37)), the mounting of the line card (15) etc. is confirmed. Thereby, the CPU (37) obtains a map regarding the mounting of the card.

Next, checking the connection state of the telephone terminal (11) will be explained. The CPU (37) of the converter sends the inquiry signal as a control signal to each terminal (11). Naturally, the format of the inquiry signal in this embodiment follows FIG. On the other hand, telephone terminal (1
When the CPU (125) of 1) receives the inquiry signal, it sends, for example, its own peculiar bone as a reply to the transformation machine (the response will be described further later). In response to this response, the CPU (37) creates a map regarding the mounting status of the terminal (11). An example of the inquiry signal and its response is shown in the 18th
As shown in the figure.

In this way, the mounting status of the card (15) and p-terminal (11) is checked, and the CPU (37) can complete the mounting map. Next, CPU (37)
initializes the telephone terminal (11).

This initialization enables the telephone terminal (11) to transmit and receive data.

Next, the CPU (37) loads the floppy disk (
39) and is stored in the memo IJ (41), data of -C is read out and sent to the terminal (11). This data transfer is performed as control data transfer to the terminal (11).

Data format 1 at this time is shown in FIG. ψ
The CPU (37) in the switch first issues a message storage request command consisting of 12 bits. This is received by the CPU (227) of the line card (15) and temporarily stored in the register (239). Thereafter, using the control signal bits in the ping-pong transmission format, it is sent to the terminal (11) via telephone line 1 (109). At the terminal (11), the receive frame register (143), 12
CPU via bit shift register (147) etc.
(125). With these steps, the above
A message storage request, a message identifier number, and a message are sent one after another to the terminal (11). The CPU (125) of the terminal (11) sends the identifier and the message to the RA.
M (158). When receiving a message storage termination command, this processing is terminated. In this way, the CP IJ (125) of the telephone terminal (11) is
The received data is stored in RAM (156). As a result, the converter and the telephone terminal (11) have exactly the same identifier and message. This completes the initial program and starts the normal map exchange program, which updates the mounting map at regular intervals in principle. That is, a new terminal (11) is connected, a connection position of the terminal (11) is changed (a connection boat is changed), and the like. If you look at this in terms of boat support, it means automatic changes to customer data. If the change in customer data is caused in particular by the connection of a new terminal Ql) to the system controlled by the exchange,
The identifier and message are transferred to the new terminal (11) in the same manner as the above initial program. The new terminal (11) stores the transferred exchange data in its RAM and has the same data as the Y exchange machine and other terminals (11).

Here, checking whether the terminal (11) is connected will be explained in detail. The exchange makes inquiries to each boat at regular intervals to check whether the terminal is connected or not. When the terminal responds to this inquiry, the exchange recognizes that the terminal is connected to that boat.

Figure 21 shows the operation of the exchange at the time of inquiry 'i70-chart.

During normal times (other than when a terminal is connected or unplugged), the exchange makes inquiries to each boat one after the other. When a terminal is connected to an exchange, from the perspective of the exchange, a response is suddenly returned from a boat that had not responded before. In this case, there are 3 exchangers on the same boat.
The inquiry is repeated several times, and if there is a response to all the inquiries, it is determined that a terminal is connected to the end of the boat.

Conversely, when a terminal is unplugged from the exchange (the terminal is disconnected), from the perspective of the exchange, the boat that had been returning normal responses suddenly stops responding. In this case, the exchange sends out three consecutive inquiries to the same boat,
If there is no response to all of them, it is recognized that the terminal connected to the boat has been disconnected.

The case of newly connecting a multi-function button telephone to an exchange will be explained. - As an example, assume that a multi-function button is connected to the telephone line (109) (position of terminal person in Figure 2). The exchange recognizes from the inquiry K immediately after connection that the terminal is connected, and sends an identification number transmission request. On the other hand, the multifunction button telephone (11) has a CPU (12
5) Read-only memo under the control of! J (126)
The control signal is the terminal identification code (unique to the model) fixedly stored in the control signal area (C) of the common bus (123), shift register (149), and transmission frame register (133). Additional circuit (1
35), the NRZ/DP & switching circuit (137), the hybrid circuit (139), and the telephone line (109). On the exchange side, when the line card (15) receives this terminal identification code, the line card (15) receives this terminal identification code.
15) The processing system CPU (37)t receives the above terminal identification code and the boat that received it via the data highway (233) and I/O (33) by the Naitori CPU (227). Give the number (PN). C.P.
U (37) recognizes that a multifunction telephone is newly connected to the boat, and uses these two pieces of information to set data (customer data, etc.) corresponding to the terminal in memory (41). In addition, as a control signal, an identification number for terminal identification is sent to the multifunction button telephone (location of the terminal person) via the I/O (33), data highway (233), line card (15), and telephone port # (109). (different for each terminal).

On the multi-function button phone side, the above identification number is used for hybrid (139), DP/NRZ conversion circuit (141), reception frame register (143), and shift register (14).
7), telephone terminal CPU (1
25) When the CPU (125) receives the rewritable memory (126) (, E2 F ROM
It can be composed of ) 1 the above identification number is stored.

The contents of this memory are retained even if the phone is powered down. This makes the terminal ready for use simply by connecting the telephone line. This section explains how to move the multifunction key phone in use to another location. - As an example, a multi-function key phone connected to the telephone line (109A) is connected to the telephone port i1i! (109B) (moves from the terminal's location to the terminal B's location).

It is assumed that the telephone lines (109A) and (109B) are each connected to the boat with terminal number (PN) 1.2 of the exchange. When this telephone is disconnected from the line (109A), the exchange recognizes that the telephone has been disconnected from the boat with PN=1 due to the above-mentioned inquiry. When this telephone is connected to line (109B) K, the switching machine recognizes from the inquiry that the telephone has been connected to the port of PN-2.

The exchange sends an identification number transmission request to the boat with PN=2. On the other hand, on the machine side of the phone, the above identification number is sent to the line card (15), data highway (2
33), CPU (3
7) receives it. CPU (37) is P from the identification number.
The terminal connected to the boat with N,=2 has been connected to the boat with PN=1 until now.
It was recognized as a multi-function button telephone connected to the boat. Therefore, the data (customer data, etc.) stored in Memo + (41) corresponding to the terminal is rewritten. Contents stored as information for PN=1'i
, PN=2 information is transferred as is. As a result, the device can be used even after moving in the same state as before the change, just by connecting the telephone line. Naturally, the assignment of functions to each key is also the same.

Standard 1 other than multi-function button phones! When connecting a telephone, etc. to the exchange in this embodiment, the exchange learns from the above inquiry that the terminal has been connected to a certain terminal, and sends out a request to send an identification number, but since there is no response, , the exchange recognizes the above terminal as a terminal other than a multi-function button telephone. At this time, if data corresponding to the terminal has already been set, the next boat is queried. If data corresponding to the terminal is not set, a request to input data corresponding to the terminal (telephone) is sent to the maintenance terminal (45), and the system waits for input.

Next, the case where new registration, deletion, modification, etc. of messages are performed on the converter side will be explained. This is executed by I10 processing as processing by the exchange.

First, key in l'-0RGJ from the terminal (45).

Then, "C0DFJ?" is displayed by the I10 process. In response, type "0OO1" from the terminal (45). This is the authorization code for entering messages. Then, by processing I10, "MODE'i"
'J is displayed. This is because the I10 process requires that the message input be limited to whether it is a new registration, change, or deletion. On the other hand, from the terminal (45), each l'
-NgWj, l'-CHGJ, [DEI, just key in J. After the key-in, “NUMBER?J, [M
Es8AGE? You will be asked J, so all you have to do is enter the identifier and message accordingly.

In this way, in the I10 process, when the new registration, change, deletion, etc. of the message is completed, this fact is notified to the background zipper, and during the daytime exchange process, the message, identifier (only the changed part is fine) ) is the telephone terminal (
11).

Next, message transfer when a telephone without a display, that is, a standard telephone, is connected to the switching system in this embodiment will be explained.

Here, it is assumed that the message is converted into voice and transferred to a standard telephone.

debt It is distinctive in that it is sharpened.

This speech synthesis circuit (301), as shown in FIG.
), RAM (307), and I/O (311). The CPU (303) is the ROM (3
05) Processing is performed according to the program stored in the computer. It also stores the correspondence in the ROM (305).

Of course, this correspondence may be stored in RAM (307). When storing the data in the RAM, there are several methods of setting the contents as described above. When a converter transfers a message, the status of the destination terminal is obtained from the customer data as described above. As a result, if the forwarding destination is a standard telephone, the CPU of the exchange (b) (3
7) sends the identifier (in some cases variable data may also be added) to the above-mentioned speech synthesis circuit (301). This is done via the data highway (233)1.

When the CPU (303) receives the identifier via the I/O (311) and the common bus (309), it starts speech synthesis processing. For example, as a brush brush + variable data, "
Assume that 50300J is sent to CPU (303)K.

First, the message corresponding to "5" is RO
Read from M (305). And “Kai Gichu I
Convert to the form "L" 1 made. As described below, this is subjected to voice synthesis and converted into PCM voice data at 8KHz intervals.

FIG. 24 shows a processing flow of speech synthesis.

The pronunciation and accent are assigned to the above message data by referring to a word dictionary for each word. In this example, the reading "Sanji" is given to "03:00 JK." Next, accents and pauses as phrases are given, and conversion into spoken language is performed.

Next, regular speech synthesis is performed based on the speech parameters, and PCM data "Kaigichu Sanjimade" with an interval of 8 kHz is obtained. This data is sent to the line card (15) via the PCM highway (17). This PCM
The data is converted to an analog voice signal at the line card and sent to a standard telephone (321) for message transfer.

At this time, a sound or a message indicating that the message is a registered message may be added in front of the message.

The message transmission may also be repeated until the handset is hung up at the standard filler (321).

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments.

For example, the CPU memory of the exchange may be distributed among line cards, trunk cards, etc., and messages may be stored in the memory of each card, and the transmission method, format, etc. between the exchange and the telephone terminal are not limited to the present invention. do not have. The telephone terminal may also have a CRT, LED, LCD, or any other type of display, and the key arrangement and key operations are not limited to those of this embodiment. Even when selecting a message,
For example, the identifier may be directly selected using a dial pad, etc., and is not limited to this method. It is clear that there is no need for data terminals, tablets, etc. that can be connected to telephone terminals. Furthermore, it is clear that the message examples and control signal codes are not limited to those of this embodiment.

Furthermore, the setting of identifiers for messages is not limited to the embodiments. In the example, messages that are frequently used within the company are treated as fixed messages, and these are identified using identifiers, but the type of messages to which identifiers are assigned can be arbitrarily determined by the system. It is. Further, as the identifier, numbers may be given as in the embodiment, or symbols may be used. It may also be used for the memory address 11-m brush.

Furthermore, messages do not necessarily need to be common to all telephone terminals, and messages that can be used by telephone terminals may be limited.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the features of this invention, FIG. 2 is an overall configuration diagram of a system according to one embodiment, and FIG. 3 is a two-wire bidirectional burst transmission method (ping-pong transmission system) used in this embodiment. Figure 4 is a diagram for explaining the signal format in Bing Bong transmission, Figure 5 is a diagram showing that the control signal has a multi-frame configuration, and Figure 6 is a diagram for explaining the NRZ signal and D
7 is an external view of the telephone terminal with a display used in this embodiment, FIG. 8 is an electrical configuration diagram of the telephone with display shown in FIG. 7, and FIG. 9 is a diagram showing the P signal string. 8
A specific circuit diagram around the hybrid circuit (139) in the figure, FIG. 10 is a specific configuration diagram of the line card (15) in the system shown in FIG. 2, and FIG. 11 is a specific circuit diagram of the system shown in FIG. Figure 12 is a diagram showing a display example (soft key display example) on a telephone terminal with a display, Figure 12 is a diagram showing boat-compatible customer data stored in the exchange and a message during setting, Figure 13 is a diagram showing the status Transition diagram, Figure 14 is a diagram showing the data format when requesting message setting, Figure 15
16 shows a flowchart for explaining the processing of the CPU in the exchange, and FIG. 17 shows the data format when requesting message transmission.
Figure 6 shows the specific processing procedure of the initial program, Figure 18 shows the format of inquiries and responses when creating the implementation map, and Figure 19 shows how messages are sent from the terminal (45) shown in Figure 2. Figure 20 is a diagram showing a specific example of input steps when inputting information, and Figure 20 is a diagram showing the format of a signal used when initializing an identifier-message from the exchange side to the terminal side. Figure 21 is a diagram showing an example of the exchange operation. Figure 22 is a diagram showing the flow of processing to check the connection status of terminals and automatically update customer data, which is performed during breaks, etc. Figure 22 is an overall configuration diagram when standard telephones are mixed as terminals;
3 is a specific configuration diagram of the speech synthesis circuit (301) in FIG. 22, and FIG. 24 is a diagram showing the processing for obtaining PCM speech data from message data in the speech synthesis circuit of FIG. 23. be. Representative Patent Attorney Nori Chika Megumi (and 1 other person) No. 1
Figure 2 Figure 3 Figure 4 Figure 5 (-NRZ signal train (b) DP signal train Figure 6 CPU (37) It, terminal (45
) side, J/ORG C0DE? −→100001 4〆1− MODE ↑ −−J−+ NEW or
CHG or DELMESSAGE?ゝゝP+ (W ear song-) 1 CR ``Figure 19Figure 20Figure 21Figure 22

Claims (3)

[Claims] (1) An automatic telephone exchange system that includes a telephone terminal having a display means and performs telephone exchange and message communication,
The telephone terminal includes means for instructing a message forwarding destination;
A means for transmitting the information on the forwarding destination specified by this means to the exchange, a message setting means for setting a message, and a sending means for converting the message set by the message setting means into a transmittable signal and sending it to the telephone line. and an instructing means for instructing transmission by the means, and displaying the message set by the message setting means on the display means, and instructing by the instructing means to send the displayed message. After receiving the message, the exchange sends the message from the sending means, and after receiving the message, the exchange transmits the message to the terminal according to the information about the forwarding destination from the terminal, and the terminal transfers the received message to the display. A telephone terminal message communication system characterized by displaying information on a means. (2) The telephone terminal message communication system according to claim 1, wherein the information about the message transfer destination is a request for sending to a specific terminal. (3) The information about the message transfer destination is a request to transfer the message to the other terminal when a call is made from another terminal to the terminal that sent the information about the message transfer destination. A telephone terminal message communication system according to claim 1.