JPS5854542B2 - Calling station name token transmission method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a calling station name talkie transmission method, particularly to an incoming trunk when a ringing tone or a calling station identification talkie tone is sent from an incoming trunk of a stored program controlled exchange. This concerns the control method.

Conventionally, when a stored program controlled exchange transmits a ringing tone or a calling station identification talkie tone (hereinafter referred to as a calling name talkie) to notify the operator of the station to which the calling subscriber belongs, the incoming trunk Connect the caller to the ringing tone output trunk, or connect the caller and calling station name talkie to the ringing trunk, or connect the calling station name talkie to the incoming trunk and the ringing tone to the ringing trunk. was.

This method has no problems in large-capacity switching systems, but when applied to small-capacity switching systems, the increase in the number of connections puts pressure on the processing capacity of the control device, and it also causes the links in the communication path network to ring and send out a tone. Therefore, the number of links used for calls decreases, leading to a decrease in traffic capacity.

Furthermore, there is a large difference in the exchange procedure between cases in which it is necessary to send out the calling station name talkie and cases in which it is not necessary, leading to problems such as a complicated program.

The calling station name talkie transmission system of the present invention provides a means for confirming the closure of a communication path network in an incoming trunk, a means for storing the closure confirmation, and an incoming call from a common control device in an exchange under stored program control. A means for receiving a call acceptance confirmation signal and a connection confirmation signal, a means for inducing a ringing tone and a calling station name talkie tone are provided, and the incoming trunk is handled only from the time the communication path is closed until the connection completion signal is received. The calling station name talkie is configured to transmit a calling station name talkie to the
For incoming trunks that require a connection completion signal from the common control device for outgoing processing, the common control device sends the connection completion signal to the incoming trunk after a predetermined period of time delay from communication path network closure, and then sends the connection completion signal to the incoming trunk. For incoming trunks that do not require call station name talkie transmission, the common control device is configured to send out the connection completion signal immediately after the call network is closed, so to speak, from the point of view of the common control device. The trunk control procedure can be simplified by simply changing the connection completion signal transmission time, and the calling station name talkie can be changed without using a special link for sending the ringing tone and the calling station name talkie. And, the ringing tone transmission can be applied to small capacity exchanges.

Hereinafter, the present invention will be explained in detail using the drawings.

Figure 1 shows the conventional ringing tone and calling station name talkie.
This explains the method of transmitting the fax. In the figure, SUB is the originating subscriber, LS is the subscriber exchange, OGT is the outgoing trunk, and IC is the originating subscriber.
T is an incoming trunk, C8P is a centralized special number exchange, POS is a seat device, BD is a reception desk, RBTT is a ringing trunk, NW is a communication path network, and TKB is a talkie device in which the calling station name is recorded.

When the originating subscriber SUB dials a special number to obtain the guidance service, the LS exchange connects the subscriber line in a known manner to the incoming trunk ICT via the outgoing trunk OGT.

The ICT notifies the C8P common control device (not shown) of the incoming call.

The common control device selects the empty reception desk BD and selects the seat device P.
It provides an incoming call indication via O8 and connects the ICT to the ringing trunk RBTT.

When the operator responds at the reception desk BD, the common control device
Restore the link between T and ICT and connect ICT and POS
At the same time, it controls the relay in the ICT, connects the communication path on the communication path network NW side to the talkie device TKE in the ICT, and sends the calling station name talkie to the reception desk side. do.

The calling station name talkie must be stopped after a certain period of time, and the communication path within the ICT must be connected between the SUB and the reception desk BD.

For this reason, the common control device controls the relay of the incoming trunk 7 ICT to send out a calling station name talkie, and then controls the relay of the incoming trunk ICT again after a certain period of time to perform the above-mentioned operation.

Figure 2 shows the incoming trunk calling station name talkie sending circuit and operation sequence, where S and t are the contacts of relays S and T whose operation is restored from a common control device (not shown), and AXL is Known A-position relays and L IJs for forming communication path loops that are not related to the present invention
It is Leh.

As can be seen from the figure, when Relay S is in operation, it is connected to RBTT or POS, and the caller can hear the ringing tone or can talk, and when Relay S is restored and Relay T is in operation, the calling station is connected. The famous talkie sound is made to be heard by the operator.

As explained above, in the conventional method, a link is used to send out a ringing tone, and relay control within the trunk is performed three times to send out a calling station name talkie.
Applying this to a small-capacity exchange system as it is would result in a reduction in system capacity, making it unsuitable.

The present invention solves these drawbacks without sacrificing economic efficiency, and allows a small capacity exchange to transmit a calling station name talk tone.

An embodiment of the present invention will be described below with reference to the drawings.

Figure 3 shows the relay system according to the present invention, and all abbreviations are
Corresponds to the diagram.

The process until the SUB is connected to the ICT is the same as the case in FIG.

When the ICT is activated, the C8P common control device (not shown) is notified of the incoming call.

When the common control device determines that the reception desk is empty or available for waiting even if all calls are busy, the common control device sends an incoming call acceptance signal to the ICT, sends out a ringing tone, and sends a call to the selected reception desk BD. An incoming call is displayed via the seat device PO8.

When the operator responds, the common control device immediately closes the link of the communication path network NW and receives information from the incoming trunk as to whether or not the link has been closed.

Whether or not a calling station name tone should be sent from the incoming trunk is registered in advance in the common control device from the outside, and if a call arrives from the incoming trunk that requires this, a connection completion signal is sent to the ICT for a certain period of time. delay.

Generally this time is taken by the program.

On the other hand, the incoming trunk that needs to send out the calling station name talky tone is prepared to send out the calling station name talky tone in advance from the time of receiving the incoming call acceptance signal, and from the time the NW is closed, the hear the corresponding talkie sound.

When the ICT receives a connection completion signal from the common control device for a certain period of time, it stops sending out the talkie.

The operation related to the above talkie transmission will be explained using FIG. 4. In FIG. Known B position relay, bo its contacts,
L is a communication path monitoring potential (A2 line - 48V, B2 line - 48 V, B2 line is a relay that detects the ground air and confirms the communication path is closed from the rear seat device (not shown); lO, 1 is its contact point; LA is a signal sound transmission la0-3 are their contacts, S and T are magnetic holding type pattern relays controlled by the common control device via STC, s0tsu1, t0-2 are the contacts of their corresponding relays, STC is a well-known switch trunk controller that receives information about pattern relays to be operated and restored from a common control device and controls the relays, and SCN is a well-known scanner that is the front part that is monitored by the incoming trunk. Those with the function of notifying the common control device of the status of stations and downstream devices, RBT, BT
are the sound sources of the ringing tone and busy tone, respectively.

When the ICT is activated from the preceding station, the AIJ relay operates in a loop via the S relay (not shown) of the OGT of the preceding station.

When the AIJ relay operates, ao closes and the common control device is notified of the activation of ICT via SCN, and contact a1
Activate the S relay.

When the common control device determines that it can be connected to the stand, the STC
A positive current is applied to the S relay of the ICT via the ICT using a known method (not shown) to operate the S IJ tray.

When the S relay operates, the sound source RBT is connected to the AIJ relay's first and second windings through the s1 contact make and la3 contact break, and the sound is guided to the first and second windings of the A IJ tray by the principle of a transformer, and the sound is transmitted to the calling subscriber. A ringing tone is sent to.

Next, when the operator responds, the common control device controls and closes the NW link in a known manner.

By closing the NW, the L IJ tray A2 line -48V and B
Operated by 2 wire earth air.

L IJ tray operation causes contact 11 to operate LAIJ tray, TKA terminal - (la0 make) - (t0 break) - (50 make) - B271 - Operator's herad set... A2M - (t2 break) - The circuit of the TKB terminal is connected to TKE, the calling station name talkie tone is heard by the operator, and the contact 10 notifies the common control device via the NW opening/closing SCN.

When the common control device learns that the NW is closed, it sets a certain timing from now on using a method using a known program or the like, and operates the T relay of the ICT in the same manner as the S relay via the STC.

When the T IJ tray operates, the break side of the TO contact opens, so the earth air supplied to the LAIJ tray is cut off and the LAIJ tray is restored.

When the LAIJ relay is restored, la0 to la3 are restored to their original state, so the transmission of the ringing tone and calling station name talkie tone is stopped, and the S
A communication path is created between the UB and the handler.

Next, a case will be described in which the calling station name talky tone is not transmitted.

In this case, TKE does not exist in Figure 4, and terminal 'f'
KA and TKE are in an open state.

The operation of the circuit is the same as that in the case of transmitting the calling station name talkie described above, up to the point where the LIJ tray operates and the NW closure confirmation information is notified to the common control device via the SCN.

When the common control device learns that the NW opening/closing trunk ICT does not need to send out a calling station name talkie by referring to information registered in advance from the outside, it immediately sends S
Operate the ICT's TIJ tray via the TC.

The operation of the T relay restores the LA relay, stops the ringing tone, and establishes a communication path between the SUB and the operator.

C8P as another transmission form of calling station name talkie tone
There is a form of sending this out from the incoming trunk of the preceding exchange.

In this system, reception services are provided only during the daytime at the preceding exchange, and at night, the reception desk is connected to the reception desk of another station and reception services are performed there.

This will be explained using FIG.

In FIG. 5, EOA and B are terminal stations A and B, respectively.
ICT, TKE, NW, O8T, POS, BD.

C8P is the same as in FIG. 1, and TP' is a toll point TP' that provides reception service only during the day.

During the day, calls from EOA and EOB are sent to TP'.
A guidance service is provided by connecting to the BD of TP', but at night the exchange of TP' selects OGT and connects to it in response to a route switching instruction from the outside.

In C8P, this is connected to BD, but at this time C8P is connected to BD.
Since both calls from EOA and EOB are connected to the 8P's ICT, the C8P can no longer know which station the SUB belongs to.

Therefore, using a special signal between C8P and TP',
A calling station name talkie is sent from the ICT at TP'.

Since the ICT of TP' is connected to the calling station, if it receives the above-mentioned special signal, that is, the calling station name talkie transmission instruction signal, the sound source (calling station name talkie) connected to each ICT will be transmitted. By sending this, the station name can be notified to the C8P operator.

Next, the calling station name talkie transmission instruction signal and how it is used to send out the calling station name talkie tone will be explained with reference to FIG.

In Figure 6, B and C2TK are slow recovery relays, A and E
and F are relays that exhibit high impedance to alternating current, and lowercase letters indicate their contact points.

Further, R is a resistor, and a lowercase letter an indicates a contact point of a relay AN (not shown).

The process of connecting the C8P to the BD is well known and will therefore be omitted.

The AIJ relay of C8P's ICT is operated during the call connection process, and is maintained by means of the FIJ relay of TP's ICT.

At this time, of course, the F relay of TP' is also operating.

C8P's ICT B and CIJ relays are also activated when a call is connected.

That is, first, when the A relay operates at startup, the C contact of the coil circuit of the C relay closes, and the air passing through the B contact break is connected to the CIJ relay coil, causing the CIJ relay to operate.

Since the C contact of the 131J relay circuit is closed by the operation of the C relay, the air that has passed through the already closed C contact make is connected to the B IJ relay coil, and the B relay is activated.

When the B relay operates, the B relay itself shorts the C contact of the operating circuit with its own contact, and thereafter continues to operate only with the A IJ relay contact.

On the other hand, in the CIJ relay circuit, when the B relay operates, the S operating circuit is cut off, but when the CIJ relay operates, the circuit continues to maintain operation with the circuit of an an contact break, a c contact make, and a b contact make or c contact make.

Now, if the operator responds in this state, a relay AN (not shown) will be sent.
can be operated from the BD.

Due to the operation of the AN relay, -48V is sent to the B line through the resistor R, and the E IJ relay of the ICT of TP' is operated.

On the other hand, due to the operation of the AN relay, the C relay of the ICT of C8P starts gradual recovery and recovers after a certain period of time (approximately 0.1 seconds).

Therefore, -48V sent to the B line is cut off at the C contact after a certain period of time, and the B line is connected to the POS side again.

As explained above, the B line sent out in a pulsed form -48■ (
This is called the calling station name talky instruction signal) is the I of TP'.
Reach CT's E IJ relay and operate it.

Due to the operation of the E relay, the C contact supplies air to the TKIJ relay through the contact of the F relay, which is already in operation.
KIJ Ray works.

When the TKIJ relay operates, the calling station name talkie tone from the TKE is sent to the C8P side by two TK contacts placed on the TP's ICT communication path.

The TKIJ relay is a slow recovery relay, and normally has a timing of about 0.6 seconds.

Therefore, the operator hears the calling station name talkie tone for about 0.6 seconds after the calling station name talkie transmission instruction signal disappears.

According to the present invention, the sending of the talkie sending instruction signal as described above can be performed by simply changing the arrangement of the relay contacts of the incoming trunk of the C8P, and the C8P can transmit the calling station name talkie signal as shown in FIG. It is done in almost the same way as sending out,
The only change is the timing control until the connection completion signal is sent.

This will be explained below using FIG. 7.

The process is the same as the case shown in FIG. 4 until the incoming call is displayed on the reception desk, the common control device operates the ICT SIJ relay via the STC, and the ringing tone is sent out.

Although the subsequent operations are the same as those shown in FIG. 4, they will be explained by focusing on the calling station name toni key transmission instruction signal.

When the operator responds, the common control device closes the NW, then refers to the information on the ICT registered from the outside in advance, learns that it should send a calling station name talkie transmission instruction signal, and connects to the ICT. In addition to sending the completion signal, the connection completion signal is sent via the STC approximately 0.1 seconds after the link is closed.

This signal operates the ICT's T IJ relay.

In this series of controls, in the ICT, first the NW opening/closing L IJ relay operates, its contact 10 operates the LA relay, the la0 contact starts sending out the Bl line battery (-48V), and the lla' The contact stops the ringing tone, and the l! The common control device is notified via the SCN that the NW is closed at the contact point.

As explained above, the common control device has NW opening/closing and approx.
Since the connection completion signal is activated after a delay of 1 second, this activates the T IJ relay, and the t0 contact connects the battery (-) of the Bl line.
48V) and extend the communication path to the NW side.

As explained above, according to the present invention, the operation of the incoming trunk and the control of the incoming trunk from the common control device differ only in the time from NW opening/closing to sending out the connection completion signal, and whether or not the calling station name talk tone is sent out. It is roughly the same regardless of its form.

This greatly simplifies the control of the common control device.

In addition, since the NW is not used during ringing tone transmission, which was a drawback of the conventional method shown in FIGS. 1 and 2, the NW
The ability of the W to pass calls is also improved, and the traffic capacity of the NW is reduced because there is no connection to a ring waiting trunk (RBTT) that consumes the processing capacity of the common controller.

The present invention is particularly effective when transmitting a calling station name talkie and a ringing tone in a small-capacity exchange that uses a common control unit with low processing capacity.

Note that the present invention is applicable not only to the ringing tone or the calling station name talkie tone, but also to other signal tones (for example, some notification service tone recorded from an announcement machine). It is a truism that this does not affect the essence of the invention.

[Brief explanation of drawings]

Figure 1 shows the conventional ringing tone and calling station name talkie.
FIG. 2 is an explanatory diagram illustrating a method of transmitting the ICT, FIG. 2 is an example of the configuration of the incoming trunk ICT shown in FIG. 1, FIG. FIG. 5 is an explanatory diagram illustrating another embodiment of the present invention, FIG. 6 is a detailed diagram of the configuration shown in FIG. 5, and FIG. An explanatory diagram illustrating timing control according to the present invention is shown. In the figure, ICT is the incoming trunk, C8P is the centralized special number exchange,
TKE is a talkie device, RBT is the sound source of the ringing sound, B
T represents the sound source of the busy tone.

Claims (1)

[Claims] 1. In a stored program controlled exchange, a means for confirming the closure of a communication path network, a means for storing the closure confirmation, and an incoming call acceptance confirmation signal and a connection confirmation signal from the common control device are received in the incoming trunk. In addition, the incoming trunk is provided with a means for inducing a ringing tone and a calling station name talkie tone, and the incoming trunk transmits a calling station name talkie to the operator only from the time the communication path is closed until the connection completion signal is received. For incoming trunks that are configured to send a calling station name talkie and require a connection completion signal from the common control device in the calling station name talkie sending process, the common control device delays the call path network by a predetermined period of time. Send the above connection completion signal to the incoming trunk and call the calling station name talkie.
A calling station name talkie transmission system characterized in that the common control device transmits the connection completion signal to an incoming trunk that does not require transmission immediately after the communication network is closed.