JP3325614B2 - Call forwarding system and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call forwarding system and apparatus , and more particularly, to a call forwarding system and apparatus for connecting an incoming call to a telephone whose absence is registered to a predetermined destination.
As a service of the private branch exchange, a so-called call forwarding service for automatically transferring an incoming call to a telephone whose absence is registered to a telephone to which the call is forwarded is provided. Nowadays, the use form of the call forwarding service is diversified, and there are many cases where the call forwarding registration alone and in groups are in conflict with each other. Therefore, it is desired to provide a call forwarding method for efficiently processing contention for the call forwarding service.

[0002]

2. Description of the Related Art Conventionally, a single call forwarding registration / cancellation has been performed for each telephone by dialing a predetermined special number from the telephone. Conventionally, there has been known a method in which a request for group variable call forwarding is issued from one telephone in a group to register call forwarding for all telephones belonging to the group (Japanese Patent Laid-Open No. 61-245758).

[0003]

By the way, the use form of such a call forwarding service has been diversified today. For example, one of the staff members of a group (section) is required to perform a specific job in another department section. And the rest of the same group move to the conference room for an emergency meeting.

However, in the conventional system, such a race condition of absence registration in one group is not considered. For example, one member of the group makes a single absence registration from a telephone in the group and leaves. However, when a request for group variable call forwarding is issued from the same group of telephones thereafter, there is a disadvantage that the previous single call forwarding registration is no longer guaranteed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a call forwarding system and apparatus for efficiently processing contention for call forwarding service between a single group and a group which occurs in the same group.

[0006]

The above-mentioned problem is solved, for example , by referring to FIG.
(Or FIG. 2) . That is, the present invention
The call forwarding method of (1) includes a plurality of telephones ₁₁ to 1 _n ,
Accommodates a plurality of telephone, the exchange 2 has a function of connecting the incoming call to the telephone 1 in the absence registration to a predetermined destination, a memory 3 which exchange 2 is managed, each phone 1 ₁ - 1 _n telephone number of the telephone in association with housing lines, presence of absence registration by one or a group, and a configured to store information of the group to which the telephone belongs, the exchange 2, from any phone 1 Absent registration of the telephone set alone in the memory 3 based on a single absence registration request, and the telephone set and each telephone set belonging to the same group as the telephone set in the memory 3 based on a group absence registration request from an arbitrary telephone set 1 Group, and if there is a single absence registration in the same group, the group will be registered with the rest of the phones excluding the single absence registration. Is performed.

[0007] The transfer device of the present invention (3) is a telephone
Transfer control for one telephone by the first registration
And make a second registration from the phone,
Transfer common to a plurality of telephones including the one telephone
It has a function to make settings related to control, and according to the settings,
In a transfer device that performs transfer control for each telephone,
During the setting by the first registration, if the second registration
In this case, the setting related to the common transfer control is
Phones excluding the one phone out of the number of phones
Control means for performing the operation. The present invention (4)
The first transfer device registers the first telephone by the first registration from the telephone.
Make settings related to transfer control for the
A plurality of telephones, including the one telephone,
Function to make settings related to transfer control common to
Transfer control for each telephone according to the setting.
The transfer device that performs the setting by the first registration.
Control that gives priority to the setting by registration
With a step.

[0008]

In FIG. 1, the telephone 1 of the group a is shown.₁Simply
When there is a German absence registration request, the exchange 2 sets the telephone 1₁Income
The telephone 1 is stored in the memory 3 based on the telephone line.₁By itself
Absence registration 1_PI do. After a while, telephone 1 of group a
_Two(Phone 1₁Or 1_ThreeBut good)
When there is a registration request, the exchange 2 sends the telephone 1_TwoTimes of accommodation
The information a of the group is determined based on the line,
Each telephone 1 of the group a₁~ 1_ThreeBy group
Absence registration 1_GThe telephone 1 ₁about
Already absent registration 1_PIn this case,
Is the remaining phone 1_Two, 1_ThreeAbsent by group only
Record 1_GI do.

[0009] Conversely, in advance telephone 1 ₁ to 1 ₃ are made is absent registration 1 _G by group for, thereafter, if there is a single missed registration request from the telephone 1 _1, exchange 2 performed in the memory 3 the absence registration 1 _P by the telephone 1 ₁ alone unconditionally. Thus, the call forwarding destination by and the 1 _G absence registration 1 _P (not shown) can be distinguished, and since handle single absence registration preferentially, the call forwarding service between itself and the groups in the same group Competition can be handled efficiently.

[0010] Preferably, the exchange 2 is a telephone 1₁From
When there is a sole absence registration cancellation request, the telephone 1₁Income
The telephone 1 in the memory 3 based on the telephone line₁By itself
Absence registration 1_PIs canceled. Phone 1_Two(Phone 1
₁Or 1_ThreeYou need to cancel the absence registration of the group from
Upon request, the telephone 1_TwoGlue based on the accommodation line
Information of the group a and each telephone of the group a
1₁~ 1_ThreeAbsence registration by group 1_GTo release
But if the phone 1₁Absence registration 1 alone _PIs formed
If so, the remaining phone 1_Two, 1_ThreeGroup of
Absence registration 1_GOnly release.

Therefore, the absence registration of the group is not canceled by canceling the absence registration of the group.

[0012]

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the same reference numerals indicate the same or corresponding parts throughout the drawings. Figure 3 is a diagram showing a configuration of a call forwarding method of Example ₁ 1 to 1 ₁₀ phones in FIG, 2 is a private branch exchange (PBX), the channel switch 21, 22 service trunk portion (TU), K Is an office trunk, S is a leased line trunk, H is an outgoing trunk, C is a call trunk, R is a ring trunk, T is a talkie trunk, 23 is a control unit, and 24 is state information of accommodated lines and various trunks. A scanner (SC), 25 is a CPU,
Reference numeral 3 denotes a memory (MEM) storing the control programs of FIGS. 5 to 7 executed by the CPU 25 and the absence transfer service table of FIG. 4, and 26 denotes a data communication control unit (DC).
C), a common bus is 27 CPU25, 4 _1, 4 ₂ are each room A, B of the locking / unlocking unit provided in the door (K
U), 5 is a security system that remotely monitors and controls the locking / unlocking unit, 51 is a CPU that performs main control of the security system, and 52 is a memory that stores the control program (SS) of FIG. (MEM), 53 and 54 are data communication control units (DC
C) and 55 are common buses of the CPU 51.

The locking / unlocking units 4 ₁ , 4 ₂ and the security system 5 are connected by a local area network (LAN), and their connection channels or their own transmitted by the locking / unlocking units 4 ₁ , 4 _2. The CPU 51 determines room information based on the address information. On the other hand, the security system 5 and the PBX 2 are connected by a dedicated communication line.

FIG. 4 is a view for explaining the call forwarding service table of the embodiment. Corresponding to the accommodated line number of the PBX 2, a telephone number of each telephone, absence registration, a transfer destination telephone number, a group code, and a room code storage column are respectively provided. The absence registration column includes a more detailed bit code column indicating the reason for the absence of leaving, returning home, business trip, or locking / unlocking. If a bit “1” is set in any of the bit code columns. If you are not registered. In the bit code column, the bits for leaving / returning home and business trip are provided with a bit for distinguishing the absence registration from the individual / group, and 1 _{P for} single registration, and 1 _P for group registration. _Expressed as 1 _G.

In FIG. 4, for simplicity of explanation, the telephones are arranged in the order of the line numbers by room code and group code, but they may actually be different. FIG. 5 is a flowchart of the call forwarding method according to the embodiment.
L) and the absence transfer registration / cancellation process between the PBX 2 are shown. When the receiver of TEL1 is hooked off,
Place a call to PBX2. The PBX 2 detects the calling state via the scanner 24, connects the outgoing trunk H, and sends out a dial tone. The caller confirms the dial tone and dials a single service special number (eg, # 1) or a group service special number (eg, # 2).

The outgoing trunk H receives the dial signal and
Report to PU25. Upon recognizing the service special number, the CPU 25 connects the talkie trunk T and sends out guidance for prompting the input of the control special number. On the other hand, the caller dials a control special number for leaving (for example, 1), a control special number for returning home (for example, 2), a control special number for business trip (for example, 3), or a control special number for canceling registration (for example, 4).

In response to this, the PBX 2 sends guidance for prompting the input of a transfer destination telephone number in the case of the control special number (1 to 3) for absence registration. In response, the user dials the transfer destination telephone number. If the transfer destination telephone number is not specified, a special number code to that effect may be dialed, or the hook may be turned on at this time. If the control special number (4) for deregistration is used, the PBX 2 skips the process of receiving the transfer destination telephone number. Then, the CPU 25 performs the following processing based on the obtained dial data.

That is, if the control special number is absent registration (1 to 3), the process proceeds to step S2. Then, for example, unattended for the phone 1 ₁ than if undergoing single service special number # 1 of the service table line number 1 (telephone 1 _1),
Single bitcode 1 in the bitcode column for returning home or business trip
Register _P and, if necessary, the forwarding phone number. Further, the telephone 1 ₁ If from (telephone 1 _2, 1 _3, even better) are served special number # 2 of the group indexes the group code a corresponding to the line number 1 of the service table, the telephone 1 belonging to the group a ₁ to 1 ₃ Away,
Return home, or business trip to register bit code 1 _G group for bit code field, and registers the necessary transfer destination telephone number.

[0020] However, prior to the phone 1 ₁ than receiving a single service special number # 1, then service of the group special number # 2
The if received as is, since already exists any bit code 1 _p sole absent registration field of the telephone 1 _1, a single registration is prioritized, the remaining telephone 1 _2, 1 ₃ respectively register the bit code 1 _G group only in the corresponding column. The same applies to the transfer destination telephone number. Conversely,
Previously phone 1 ₁ receives the service access code # 2 groups than, then when that received a single service special number # 1, if the telephone 1 ₁ absent registration field and should correspond to the line number 1 of the service table The transfer destination telephone number is unconditionally updated with the content attached to the single service special number # 1.

If the control special number is absent registration cancellation (for example, 4), the process proceeds to step S3. Then, for example, telephone 1 ₁ than a single service special number # Away corresponding to the line number 1 of the service table when undergoing 1, cancel return home and registration bit code 1 _P and 1 _G Business column (e.g., 0 At the same time, the registration of the transfer destination telephone number is also canceled (for example, blank).

Further, if the receiving telephone 1 ₁ from a group of services special number # 2 indexes the group code a corresponding to the line number 1 of the service table, unattended phone 1 ₁ to 1 ₃ belonging to the group a , unregister the bit code 1 _G come home and travel column, together cancels also registered destination telephone number. However, for example, when the telephone 1 column ₁ into a single-bit code 1 _p is present, a single registration is prioritized, unregister the remaining telephone 1 _2, 1 _3-bit code 1 _G. At the same time, the registration of the transfer destination telephone number is canceled.

[0023] Thereafter, PBX2 sends out the guidance of absence registration / cancellation completion on the phone 1 _1, callers heard this line is restored to the handset to hook ON. FIG.
FIG. 5 is a flowchart of the call forwarding method of the embodiment, which shows the process of registration / release of call forwarding between the locking / unlocking unit (KU) 4 and the PBX 2 via the security system (SS) 5.

[0024] When the operator inserts the self ID card into KU4 _2, the KU4 ₂ is built of the card reader (not shown)
To read the card ID and call SS5. SS5 is the card ID is proper, and returns the predetermined response to KU4 _2. Thus KU4 ₂ the operation panel is activated.
Operator a predetermined final leaving processing KU4 ₂ of the operation panel when the final person leaving the room, also in the case of the first entry's room performs predetermined first entry process on the operation panel. KU4 _2, if the former control codes lock request SS5, in the latter case sends a control code for unlocking request. SS5 perform remote locking or remote unlocking of KU4 ₂ thereto.

Then, SS5 sends a call to PBX2,
BX2 returns an incoming call response. Next, SS5 transmits a lock / unlock registration request, and PBX2 returns a response. Further SS5 sends a room code B with indexing from KU4 ₂ connecting channel or address information, PBX 2 sends back a response. Then, the CPU 25 of the PBX 2 performs the following processing based on the obtained communication data.

That is, in the case of a lock registration request, step S1
Advances to 2, and registers the lock bits (= 1) in the absence registration field of the telephone 1 _{6-1 10} belonging to the room code B in the service table. In the case of unlocking the registration request process proceeds to step S13, and registers the unlocking bit (= 0) in the absence registration field of the telephone 1 _{6-1 10} belonging to the room code B in the service table.

After that, the PBX 2 sends the lock / unlock registration completion to SS5, and SS5 returns the reception completion. FIG. 7 is a flowchart of the call forwarding method according to the embodiment.
This figure shows the call forwarding processing by PBX2. When an incoming call is received from an outgoing call, the service table is searched by the incoming call number in step S21, and it is determined whether or not the incoming call is registered for absence. If any of the bits in the absence registration column are “1”, absence registration is in progress.

When the absence registration is not being performed, the ringing tone trunk R is connected to the accommodation line of the incoming call, and the incoming call is called. When the called party hooks off the receiver, a communication path is formed between the outgoing call and the incoming call, and the call is in progress. If the absence registration is being performed, it is determined in step S22 whether the lock bit in the absence registration column is "1". When the lock bit is "1", the talkie trunk T is connected to the incoming line and, for example, a guidance to the effect of terminating the work is transmitted. The caller hooks the receiver and the line is restored.

If the lock bit is not "1", it is checked in step S23 whether a transfer destination telephone number has been registered. If there is a registration, the ringing trunk R is connected to the accommodation line of the transfer destination telephone to call the transfer destination telephone. When the called party hooks the receiver off, a communication path is formed between the calling telephone and the transfer destination telephone, and the telephone is busy. If the transfer destination telephone number is not registered, the talkie trunk T is connected to the incoming line and, for example, a guidance to the effect that the call cannot be connected is transmitted. The caller hooks the receiver and the line is restored.

In the above embodiment, a service table having a storage structure as shown in FIG. 4 is used, but the present invention is not limited to this. The storage structure of the service table and the method of referring to the service table are not limited as long as necessary information can be correlated. In the above embodiment, the locking / unlocking unit 4 is connected to the data communication line of the PBX 2 via the security system 5, but the present invention is not limited to this. For example, the locking / unlocking unit 4 may be configured to be directly accommodated in the telephone line of the PBX 2 as shown in FIG. 2, or a telephone line drawn out of the security system 5 as shown by a dashed line in FIG. You may comprise so that it may be accommodated in PBX2.

[0031]

As described above, according to the present invention, a single absence registration is preferentially handled, so that it is possible to efficiently deal with competition between the single and absence transfer services between the single group and the group that occur within the same group. The system is easy to use.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a diagram illustrating the principle of the present invention.

FIG. 3 is a diagram illustrating a configuration of a call forwarding system according to an embodiment;

FIG. 4 is a diagram illustrating an absence transfer service table according to the embodiment;

FIG. 5 is a flowchart of the call forwarding method according to the embodiment.

FIG. 6 is a flowchart of the call forwarding method according to the embodiment.

FIG. 7 is a flowchart of the call forwarding method according to the embodiment.

[Explanation of symbols]

1 ₁ to 1 _n telephone 2 exchange 3 memory 4 _1, 4 ₂ locking / unlocking unit

Continuation of the front page (56) References JP-A-2-274153 (JP, A) JP-A-6-46154 (JP, A) JP-A-6-37898 (JP, A) JP-A-64-54861 (JP) JP-A-63-268355 (JP, A) JP-A-5-95424 (JP, A) JP-A-2-29647 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) H04M 3/42-3/58

Claims (4)

(57) [Claims] An exchange having a plurality of telephones, a function of accommodating the plurality of telephones, and a function of connecting an incoming call to a telephone whose absence is registered to a predetermined transfer destination, and a memory managed by the exchange. The telephone number of the telephone, the presence or absence of absence registration alone or in a group, and the information of the group to which the telephone belongs in association with the accommodation line of each telephone. The absence registration of the telephone alone in the memory based on the absence registration request of
In addition, based on the absence registration request for the group from any telephone, the absence registration is performed by the group of the telephone and each telephone of the same group as the telephone in the memory, and if there is a single absence registration in the same group, the absence registration is performed. A call forwarding system in which a call is registered in a group to each of the remaining telephones except for a call registration. 2. The exchange performs release of the absence registration of the telephone in the memory alone based on a single absence registration release request from an arbitrary telephone, and based on a group absence registration release request from the arbitrary telephone. In the memory, the absence registration by the group of the telephone and each telephone in the same group as the telephone is canceled, and when there is a single absence registration in the same group, the remaining telephone groups excluding the single absence registration are removed. 2. The absence transfer system according to claim 1, wherein the absence registration is canceled. 3. The first registration from the telephone sets one telephone.
Make settings related to transfer control for the
A plurality of telephones, including the one telephone,
Function to make settings related to transfer control common to
Transfer control for each telephone according to the setting.
The transfer device performs the second registration during the setting by the first registration.
In this case, the setting related to the common transfer control is
Phones excluding the one phone out of the number of phones
A transfer device for performing the transfer. 4. The first registration from a telephone sets one telephone.
Make settings related to transfer control for the
A plurality of telephones, including the one telephone,
Function to make settings related to transfer control common to
Transfer control for each telephone according to the setting.
In the transfer device, the setting by the first registration is compared with the setting by the second registration.
Control means for performing priority-based control.
And a transfer device.