JPH01101768A - Recall system - Google Patents

Abstract

PURPOSE:To enhance the service performance to a caller by assigning a 2nd telephone number to plural telephone sets with a 1st telephone number assigned to them, and using the 2nd telephone number assigned to the telephone set so as to recall when the call replied by any of the telephone sets recalls the telephone set. CONSTITUTION:When any telephone set replies to an incoming call to the 1st telephone number being a telephone number of a station switched loop termination(SSLT) function and transfers the call to a called party, if the called party at the destination is absent, recalling is applied. In such a case, the recalling is applied by using the 2nd telephone number assigned to the telephone set replied at first among the telephone set assigned with the 1st telephone number. Thus, when the 2nd telephone number is assigned as a prime telephone number specific to each telephone set, the replied telephone set at first is recalled at first.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a recall method for calls answered by a recall method % termination function in an electronic exchange.

(Prior Art) The station switched loop termination (hereinafter referred to as 5SLT) function in an electronic exchange is a function of station switched loop termination (hereinafter referred to as 5SLT) in an electronic exchange.
When a call arrives at that telephone number, an incoming call signal is sent to multiple telephones to which the first telephone number has been assigned, and one telephone receives the incoming call. This function allows you to make a call to another phone when the phone answers.

By the way, electronic exchanges usually provide a service in which a call that was answered once is transferred by the answering party's transfer service, and if the call is not answered for a certain period of time at the transfer destination, the telephone that answered previously is recalled (re-ringing). We are prepared.

When a call arrives at the first telephone number, which is the telephone number for the 5SLT function, the first telephone number is assigned to multiple telephones, so the telephone that previously answered the call is determined from the telephone number that received the call. Since this is not possible, a system is adopted in which an incoming call signal is sent to all telephones to which the first telephone number has been assigned at the time of recall, in the same way as at the time of first incoming call.

However, in such recall systems, the first responder and the person who responded at the time of recall are often different, so the caller must tell the name of the person he or she wants to call to a new responder each time the caller is answered. , there was the hassle of having to explain the situation.

(Problems to be Solved by the Invention) As described above, the conventional electronic exchange with the 5SLT function has the problem of poor service to callers during recalls.

The present invention provides a recall method that allows calls to be made to the first telephone number, which is a telephone number with the 5SLT function, to the telephone that previously answered, thereby improving service to the caller. The purpose is to provide.

[Structure of the Invention] (Means for Solving the Problems) The present invention allocates a common first telephone number to a plurality of telephones, and when a call is received at the first telephone number, the first telephone number sends an incoming call signal to multiple telephones to which the first telephone number has been assigned, and when one telephone answers the incoming call, an electronic switching system that allows other telephones to make a call sends an incoming call signal to multiple telephones to which the first telephone number has been assigned. A second telephone number is assigned to each of these telephones, and when a call answered by one of these telephones recalls the telephone, the second telephone number assigned to the telephone is used to recall the telephone.

(Function) When one of the telephones answers an incoming call to the first telephone number, which is the telephone number of the SSLT function, and transfers the call to the called party, if the called party is not present at the forwarding destination, the call will be recalled. will be done. In that case, in the present invention, a recall is performed using the second telephone number assigned to the telephone that answered first among the telephones assigned the first telephone number. Therefore, if that second telephone number is assigned to each telephone as a unique prime telephone number, the telephone that answered first will always be recalled.

In addition, if the second telephone number is used (even if it is shared by a few telephones, the first telephone number that answers There is a high probability that the phone will be recalled.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram schematically showing the configuration of a portion related to the present invention of an electronic exchange for explaining a recall system according to an embodiment of the present invention. In the electronic exchange 1, the number receiving unit 2 is connected to the extension telephone (
This is a circuit that determines numbers such as dialed numbers from 10 and extension telephones 11. This is the memory that I did.

A telephone number type memory 4 corresponding to telephone numbers is stored in the numeric receiving section 2
This memory stores, for each telephone number, information indicating the type of telephone number determined in step 1, ie, whether it is a 5SLT function telephone number or another telephone number. The accommodated telephone number memory 5 corresponding to port numbers is a memory that stores telephone numbers (first telephone numbers) and second telephone numbers of the 5SLT function assigned to telephones connected to each port of the electronic exchange 1. It is. The response telephone number memory 6 corresponding to the telephone number is a memory that stores the second telephone number of the telephone that responded in correspondence with the phone number of the calling party's telephone.

Further, the switch section 7 is a section for performing exchange connections.

Figure 2 shows an example of a multi-function telephone used for extension telephones 11, 12, etc. 21 is the telephone number display for the 5SLT function, 22 is the prime telephone number display of the telephone, and each of these telephone numbers An LED 23 is provided corresponding to the display.

Note that the present invention is also effective when standard telephones are used as the extension telephones 11, 12, etc.

Next, the recall processing procedure in this embodiment will be explained with reference to the flowchart shown in FIG.

When a call is received from an extension phone or central office line with phone number 300, the incoming phone number is a 5SLT function phone number (
200 in the illustrated example) is determined by referring to the contents of the telephone number type memory 4 corresponding to the telephone number (steps 31 and 32). As a result of this determination, the incoming phone number is 5S.
If the telephone number is not an LT function telephone number, an incoming call signal is sent to the telephone set having that telephone number, and an incoming call is displayed (step 33). The incoming call indication continues until the telephone answers at step 34 or the calling party hangs up the call.

On the other hand, if it is determined in step 32 that the incoming telephone number is a telephone number with the 5SLT function, the switch section 7
The incoming call is displayed on multiple telephones to which the LT function telephone number has been assigned (step 35). That is, the LED corresponding to number 200 in FIG. 3 is lit. When the telephone that displays the incoming call answers and the response is detected through the port to which the telephone is connected, the switch section 7 switches between the extension telephone (or central office line) 10 that received the call and the telephone that answered. Incoming calls to phones other than those connected and answered will be stopped, allowing you to make calls. Next, the second telephone number (201 in the example of FIG. 3) assigned to the telephone that responded is read out from the accommodation telephone number memory 5 corresponding to the port number, and the response telephone number memory 5 corresponding to the telephone number is read out.
(steps 36 and 37).
).

Next, in step 38 it is determined whether a recall is to be performed. That is, when the person who answered in step 36 transfers the call to the telephone set at the location of the called party, if the called party is present, the call is made without being recalled (step 41).

On the other hand, if the called party is absent, a recall is performed. In this recall, the second telephone number of the telephone that responded in step 36 is checked from the contents of the response telephone number memory 6 corresponding to the telephone number, and an incoming call signal is sent to the telephone having the second telephone number. and the incoming call is displayed (step 39). For example, in the example shown in FIG. 2, the LED corresponding to the second telephone number 201 is lit. This incoming call indication allows the first person to answer to respond to the recall at step 40, thereby eliminating the need for the caller to provide the same explanation.

In addition, in this case, the telephone number display 21 of the 5SLT function in FIG. 2 does not light up, and only the LED corresponding to the second telephone number display 23 of the phone lights up to indicate an incoming call. The user can distinguish the incoming call display at the time of recall from the incoming call of a new call, and can quickly respond to the recall. Therefore, the service quality for callers is further improved.

FIG. 4 shows another embodiment of the present invention, in which a port number memory 8 corresponding to a telephone number is newly added. This memory 8 is a memory that stores, in correspondence with each telephone number, the number of a port connected to a telephone that has the telephone number as its prime telephone number. Note that one telephone number will not be assigned to multiple telephones as a prime telephone number.

In this embodiment, in step 37 in FIG. 3, the prime telephone number of the telephone that responded is stored as the response telephone number, and in step 39 in FIG. ), the number of the port connected to the telephone having the prime telephone number is known from the contents of the port number memory 8 corresponding to the telephone number, and an incoming call signal is sent to that port. Therefore, an incoming call display at the time of recall can be performed only for the telephone that answered first.

FIG. 5 shows an example of a multifunction telephone used as the extension telephones 11, 12, etc. in this embodiment. In FIG. 5, 21 is a phone number corresponding to the 5SLT function, 22 is a prime phone number display of the phone, 23 is an LED,
Further, 24 is the prime telephone number display of another telephone.

If the phone in question is the one that answered first, the LEDs corresponding to the phone number display 21 of the 5SLT function and the prime phone number display 24 of other phones will not light up at the time of recall, and the prime phone number display 22 of the own phone will not light up. An incoming call is indicated by lighting only the LED corresponding to the . As a result, the user of the telephone can distinguish the incoming call display at the time of recall from the incoming call of a new call, and therefore can quickly respond to the recall.

[Effects of the Invention] According to the present invention, each of the plurality of telephones to which the first telephone number, which is the telephone number of the 5SLT function, is assigned the second telephone number.
If a call answered by one of these telephones recalls the telephone, the second telephone number assigned to the telephone is used to recall the second telephone number. If the phone number is assigned to each phone as a unique prime phone number, the first phone to answer will always be recalled, even if a second phone number is shared by several phones.
The first phone to answer has a high probability of being recalled. Therefore, serviceability for callers is improved.

That is, the responder at the time of the recall has previously responded to the same call and is aware of the circumstances, so he or she can respond quickly and appropriately to the recall. From the point of view of the caller, there is no need to repeat explanations such as telling the name of the person to be called, requirements, etc. at the time of recall.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing the configuration of the main parts of an electronic exchange for explaining a recall system according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a multifunction telephone used in the same embodiment. , FIG. 3 is a flowchart for explaining the processing procedure at the time of recall in the same embodiment, and FIG. 4 is a schematic diagram of the configuration of the main part of the electronic exchange for explaining the recall method according to another embodiment of the present invention. FIG. 5 is an explanatory diagram of a multifunction telephone used in the same embodiment. DESCRIPTION OF SYMBOLS 1...Electronic switchboard, 2...Number receiving part, 3...Analysis program tamori, 4...Telephone number type memory corresponding to telephone number, 5...Accommodating telephone number memory corresponding to port number, 6・・・Response phone number memory for phone numbers, 7
．． 7a to 7C: switch unit, 8: port number memory corresponding to telephone number, 10: extension telephone or office line, 11.12: extension telephone. Applicant's agent Patent attorney Takehiko Suzue

Claims (3)

[Claims] (1) Assigning a common first telephone number to multiple telephones,
When a call arrives at the first telephone number, an incoming signal is sent to multiple telephones to which the first telephone number is assigned, and when one telephone answers the incoming call, other telephones can make a call. In an electronic exchange, a second telephone number is assigned to each of a plurality of telephones to which the first telephone number has been assigned, and if a call answered by any of these telephones recalls the telephone, the second telephone number is assigned to the telephone; A recall method characterized by recalling using a second telephone number that has been received. (2) When a call handled by a telephone recalls the telephone, an incoming call is displayed only to a second telephone number assigned to the telephone. Recall method. (3) The recall system according to claim 1, characterized in that the second telephone number assigned to each telephone is different.