JPS5859662A - Telephone service start and stop system - Google Patents

Abstract

PURPOSE:To optionally control start and stop of service even in the course of a call, by providing a means for sending and receiving a signal of out-band frequency, between a service subscriber and an office-side equipment. CONSTITUTION:For instance, in case when a call waiting service subscriber SUBA is calling, if a service start key KU is operated, OBIS sends out a service start signal by out-band frequency, to a subscriber's line. This signal is received by a common control part CC through OBIC. As a result, the CC discriminates a signal send-out subscriber, and controls a number group user memory controlling part NGUSMC. The NGUSMC sets a memory corresponding to the SUBA to a start state, also sets a terminal T1 and a terminal T2 to an idle state, and realizes start of a call waiting service.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for starting and stopping telephone services in which a service subscriber can arbitrarily start and stop the service in various telephone services provided by a telephone exchange to subscribers, regardless of whether there is a call or no call. It is related to.

Among various telephone services, there are many that are convenient if you can start or stop the service by entering a call. For example, in the case of a call waiting service, it may be desirable to temporarily prohibit the service during a call with an important subscriber to prevent the call from being interrupted by an incoming call from a third party. Particularly, when a call in progress is connected to an incoming call, this requirement arises because it is only after the call begins that the person on the other end and the content of the call can be known. Further, in the case of a recording service for recording the contents of a call, if the call is an incoming call, it may become clear that connection to a recorder is required only after the call begins.

As described above, various conventional telephone services have not been provided with a service function for starting and stopping the service during a call. In addition, the call waiting service uses hooking or dialing a certain number as a control signal, which has the disadvantage that it inevitably affects telephone calls. Hereinafter, with reference to FIG. 1, the case of starting and stopping a call waiting service by a conventional telephone exchange will be explained in more detail.

In FIG. 1, 5UBA is a call waiting subscriber, αboiled is a call waiting subscriber switch unit accommodating the call waiting subscriber 5UBA, CWSE is equipment for call waiting service, L
INK is the main link, 5UBB.

5UBC is the subscriber, IOT is the well-known internal trunk, M
is a known marker, and NG is a known number group.

Conventionally, a call waiting service is started as follows:-0 That is, a subscriber who desires a call waiting service applies for subscription to the service at a telephone office, and the number group NG shown in the figure is selected.
This is done by changing the jumper from being treated as a single subscriber to representing two lines, and by connecting the main subscriber switch (CWSWU) of call waiting service subscriber 5UBA. On the other hand, the suspension of the service is
If a subscriber who wishes to discontinue the service applies to the telephone office for discontinuation, Jean Gu, the representative of Number Group NG's second line, will be treated as an individual subscriber.
call waiting service subscriber switch)
This is done by removing CWSWU. All operations for starting and stopping these call waiting services are performed manually at the central telephone office. Therefore, once the call waiting service is started, it is not possible for the service subscriber 5UBA to reject the incoming call waiting call, for example, during an emergency or important call with the subscriber 5UBB. In this case, when there is an incoming call from subscriber 5UBC, it is not a call waiting incoming call, and an incoming call display tone is sent to call waiting subscriber 5UBA.

Therefore, call-waiting subscriber 5UBA informed subscriber 5UBB that there was a call-waiting call, and upon understanding, performed the ``cutting'' operation, switched the call to subscriber C, and explained to subscriber 5UBB that an emergency or important call was in progress. Up,
I had to perform the hooking operation again to return to the call with subscriber 5UBB.

On the other hand, in order for call-waiting subscriber 5UBA to continue the call with subscriber 5UBB, subscriber 5UBA must
There is a method of not performing a hooking operation, that is, not responding to the incoming call waiting call of C, but in this case, the above-mentioned incoming call indicator is periodically sent to the subscriber 5UBA, which interferes with the call, and also prevents the subscriber from receiving a call. 5UBC has the disadvantage that a known ringing tone is continuously sent out, which can be mistaken as a caller's absence.

The present invention has been made to eliminate these drawbacks, and therefore provides means for transmitting and receiving out-of-band frequency signals between the service subscriber and the station equipment, so that the subscriber's terminal operation does not affect the call even during the call. The purpose of this invention is to provide a telephone service start/stop method that transmits a control signal for the service to the central office equipment, thereby making it possible to arbitrarily control the start and stop of the service, as shown in Figure 2 below. It will be explained in detail according to the following.

FIG. 2 shows an embodiment of the present invention, in which 5UBA is a call-waiting subscriber, KU is a key unit provided on the subscriber's 5UBA side and operates the start and stop of the service, and 0BIS is the operation of the key unit KU. The 0BIC, an out-of-band signal interfunis subscriber side device, generates an out-of-band signal for starting or stopping the service and sends the signal to the subscriber line, and receives the out-of-band signal sent to the subscriber line. Out-of-band signal interface station equipment, SCH
is an out-of-band signal conversion unit that converts the out-of-band signal to an electronic level; CC is a common control unit that has a signal content identification function and a subscriber identification function; and controls a number group user memory control unit to be described later; NGUSMC is a common control unit that has a signal content identification function and a subscriber identification function; NGUS is a number group user memory control unit that controls electromagnetic level memory for starting and stopping services for service subscribers, which will be described later.
M is a number group user memory that is a memory for starting and stopping services at an electromagnetic level; CWSE is a known call waiting service device consisting of a call waiting link, a call waiting link controller C%lvL, C0NT, a call waiting device α pressure, etc. It is. In addition, call waiting subscriber switch unit) CWSWU, number glue 7'NG.

Marker M1 main link LINK, subscriber 5UBB, 5
UBC is the same as in FIG.

First, with reference to the figure, a case will be described in which the call waiting service is started. The call waiting service subscriber 5UBA operates a service start key (not shown) using the key unit KU. As a result, the out-of-band signal Inter7S subscriber side device 0BIS sends a call waiting service start signal (hereinafter referred to as CWST signal) using an out-of-band frequency to the subscriber line. This CWST signal is received by the out-of-band signal interface station equipment, and is converted into an electronic-level CWST signal in the out-of-band signal converter SCH. The common control unit CC receives the electronic level CWST signal, identifies it as a CWST signal, and transmits the CWST signal transmission unit NGU.
Control SMC. The number group user memory control unit NGUSMC is a memory for starting and stopping the electronic level of the call waiting service, which is provided for call waiting service subscribers, and has a conversion function of the electronic level and electromagnetic level. In response to the instruction to start the waiting service, the memory corresponding to the service subscriber 5UBA is brought into the starting state and the number group user memory NGUSM is controlled. Corresponding number group user memory NGUSM box
This is an electromagnetic level start/stop memory for a call waiting service provided for a call waiting subscriber, and when the call waiting service subscriber 5UBA receives an instruction to start the service from the number group user memory control unit NGUSMC, the Two well-known representative test lines compatible with service subscriber 5UBA are set in an idle state, that is, the T1 terminal and T2 terminal shown in the figure are set in an idle state. The above-described operation realizes the start of the service for the subscriber of the Chicall Waiting service.

Next, suspension of the call waiting service will be explained. The call waiting service subscriber 5UBA operates a service stop key (not shown) in the key unit KU. As a result, the out-of-band signal interface subscriber-side device sends a call waiting stop signal (hereinafter referred to as a CWSP signal) to the subscriber line using an out-of-band frequency.
The cwsp signal that is transmitted is received by the out-of-band signal interface unit 0BIC, and is converted into an electronic-level cwsp signal by the out-of-band signal converter SCH.

The common control unit CC receives the electronic level CWSP signal,
It identifies that it is a cwsp signal, identifies the cwsp signal sending subscriber, and controls the number group user memory control unit NGUSMC. The number group user memory control unit NGUSMC puts the memory corresponding to the service subscriber, which has been in the starting state, into a stopped state, and controls the number group user memory NGUSM. The number group memory NGUSM is in a stopped state when the electromagnetic level is sufficient for starting and stopping.

That is, a known representative test line corresponding to service subscriber 5UBA in number group NG is set as the busy state, and if service subscriber 5UBA is in a non-call state, the T2 terminal is set to be in a busy state. Also, if the terminal is in a call state, other terminals that are not being used in a call are set to a busy state. Through the above-described operations, the service to the call waiting service subscriber is stopped. Note that the call waiting service start signal CWST using the out-of-band frequency
For the stop signal cwsp and the stop signal cwsp, different single frequency signals, frequency shift signals/FS signals, phase shift signals/ps signals, and multifrequency signals/MF multiplied signals can be used.

In other words, no matter which signal is used as a control signal, since it uses an out-of-band frequency signal, there will be no adverse effect if these control signals are sent during a normal call, when transmitting/receiving signals using audio frequencies, or when there is no call. It is something that cannot be given.

In addition, after the above-mentioned call waiting service starts,
When a call is received from the subscriber 5UBC to the service subscriber 5UBA during a call between the call waiting service subscriber 5UBA and the subscriber 5UBB, the key unit is used to switch from the subscriber 5UBB to the subscriber 5UBC.
By providing a switching key (not shown) in the KU and further providing an out-of-band frequency switching signal conversion means and a detection means in the call waiting device, in response to the switching key of the key unit KU, The switch CH of the goal waiting device O can be activated, and the call waiting service can be performed without affecting the call.

As explained above, in the embodiment of the present invention, a call waiting service subscriber can arbitrarily start and stop the call waiting service during a call or even during six idle calls.

Therefore, in the case of an unnecessary outgoing call where you do not want to receive a call waiting call while you are talking, there is an advantage that you can perform a stop operation before making the outgoing call. In the case of an incoming call, if you do not want to be disturbed by the incoming call, there is a call waiting depending on the other party or the content of the call.

Furthermore, since the embodiment of the present invention controls the service network without driving the main link of the exchange, there is no need to drive the main link of the exchange, and connection codes such as special numbers for controlling the exchange are not used. In the embodiment of the present invention, the service start/stop receiving means is provided on the subscriber line side, but the effect of the present invention will still be effective even if it is provided on the trunk side via the known main link. It is something that can be demonstrated.

The present invention has the advantage of being able to control the service memory without affecting the call, so it is possible to control the start and stop of recording during a call during a call when implemented on the exchange side. It can be used for.

■In the case of malicious call detection During a call, when a malicious call is determined to be a malicious call, malicious call information can be input into the exchange without the caller noticing, and the exchange will send out an alarm, put the line on hold,
It becomes possible to express controls such as caller detection.

Embodiments of the present invention have the advantage of being able to control the service memory without driving the main link of the exchange and without using special numbers, which are connection codes for controlling the exchange. It becomes possible to add functions.

[Brief explanation of drawings]

FIG. 1 is a relay system diagram of a conventional call waiting service, and FIG. 2 is a relay system diagram showing an embodiment in which the present invention is applied to a call waiting service. 5UBA・・・Call waiting service subscriber,
KU...Key unit, 0BIS...Out-of-band signal interface subscriber-side device, 0BIC...Out-of-band signal interface station-side device, SCH...Out-of-band signal converter, CC...Common control Department, NGUSMC...Nan i
4 group user memory control unit, NGUSM...nanno group user memory. Procedural Amendment Form 1. Display of the case 1982 Patent Application No. 158179/29 Name of the invention Telephone service start/stop method 3, person making the amendment Relationship to the case Patent application Personnel office (105) Toranomon 1-chome, Minato-ku, Tokyo No. 7 No. 12 Name (029) Oki@Ki Kogyo Co., Ltd. Representative
Director and President Masao Miyake 4, Agent
(1 other person) Address: No. 12-6, 1-7, Toranomon, Minato-ku, Tokyo, 1-105 Contents of the amendment Figure 2 of the drawing will be amended and corrected as shown in the attached sheet.

Claims (2)

[Claims] (1) In the method of starting and stopping telephone service,
The subscriber terminal side is provided with means for transmitting a service start/stop signal to the telephone line as an out-of-band signal, and the exchange is provided with means for classifying the start/stop signal of the service according to the receiving position; Telephone service start/stop method 0 characterized in that a control means for starting and stopping the service is provided, and the telephone service is started and stopped during a call or during no call, in accordance with a service start/stop request from the subscriber terminal. (2) The telephone service start/stop signal according to claim 1, wherein the service start/stop signals are each different single frequency signal, frequency shift signal, phase shift signal, or multifrequency signal. method.