JP2002368881A - Private branch exchange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a PHS cannot be called when base stations are all busy or out of order even if an extension of a called PHS is idle. SOLUTION: When an extension 9 makes a call to a PHS 2 accommodated in a PHS base station 5 that is fully busy, a private branch electronic exchange 1 once holds the call from the extension 9, collates a base station memory 15 and a paging memory 16 to retrieve a paging device 11 of an area in which a possessor of the PHS 2 is resident to allow the paging device 11 to broadcast a fact of the call arrived in the PHS 2. When the possessor of the PHS 2 uses a nearby extension 8 to dial a specific number or a function button, the exchange 1 connects the PHS 2 to the call from the extension 9 subjected to holding to attain calling of the possessor of the PHS 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing method in a private branch exchange when a radio base station is busy.

[0002]

2. Description of the Related Art Conventionally, in an electronic private branch exchange, the PH
When a call is made to the PHS extension accommodated in the PHS base station during all the talks of the S base station, a busy tone is transmitted to the caller to urge the caller to call again.

[0003]

As described above, in the conventional system, even if the called PHS extension is in an idle state, the base station may not be able to secure a communication channel due to all calls or a failure. Even if they wanted to call an extension, they could not be called and there was no other means of communication.

In order to solve such a problem, the present invention provides a P
An object of the present invention is to allow a person who has a PHS extension to contact a PHS extension when a call is made to the PHS extension while a radio base station such as an HS is busy.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a private branch exchange accommodating a radio base station accommodating a portable terminal such as a portable telephone or a PHS, a general fixed telephone, and a private branch exchange accommodating a paging device. A base station memory that stores a mobile terminal whose location is registered by the radio base station corresponding to the radio base station, and a paging memory that stores the paging device corresponding to the accommodation area of the radio base station. A call channel memory for monitoring a call state of the wireless base station, wherein when the mobile terminal receives a call during all talks of the wireless base station, the wireless base station position-registers the mobile phone terminal. The paging device corresponding to the station is referred to in the paging memory, and the paging device notifies the mobile terminal that there is a call.

[0006] Further, when a call is made to the portable terminal while the radio base station is busy during all calls, the private branch exchange suspends the call and responds to the radio base station in which the position of the portable telephone terminal is registered. The paging memory is referred to in the paging memory, the paging device notifies the mobile terminal that there is a call, and if there is a response from the general telephone with a special number, the call from the general telephone is suspended. It is desirable to respond to

Further, it is desirable that the private branch exchange has a voice synthesizing device for synthesizing a voice indicating that there is a call to the portable terminal.

[0008]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

The electronic private branch exchange 1 according to the present invention includes:
A plurality of PHS base stations 5 accommodating mobile terminals (hereinafter, referred to as “PHS”) 2 to 4 such as mobile phones and PHSs
, A plurality of extension telephones 8 to 10, a plurality of paging devices 11 to 13 configured by an amplifier and a speaker
And a voice synthesizing device 14 that synthesizes a voice indicating that there is a call in the PHS. In addition, the electronic private branch exchange 1 stores the PHS whose location is registered by the PHS base station in each PHS.
Base station memory 15 stored corresponding to HS base stations 5 to 7
A paging memory 16 for storing a paging device corresponding to the accommodation area of each of the PHS base stations 5 to 7;
A communication channel memory 17 for monitoring the communication state of the base stations 5 to 7 and a P in which the called PHS is registered
A paging device corresponding to the HS base station is stored in the base station memory 1
5 and a matching circuit 18 for matching from the paging memory 16
And a central processing unit 19 that controls each process of the electronic private branch exchange 1.

Next, the operation of the present invention will be described with reference to FIG.

[0011] The PHS base stations 5 to 7 register the locations of the PHSs in the calling area of their own stations, and the central processing unit 19 of the electronic private branch exchange 1 registers the locations of the PHS base stations 5 to 7. The PHS is registered in the base station memory 15 in association with each of the PHS base stations 5 to 7, and the paging devices 11 to 13 in the paging areas of the PHS base stations 5 to 7 are stored in each PHS base station.
Paging memory 16 corresponding to each of HS base stations 5 to 7
The busy state of the base station is monitored for each of the PHS base stations 5 to 7, and the state is registered in the communication channel memory 17. The base station memory 15, the paging memory 16, and the call channel memory 17 are registered, for example, as shown in FIGS.

Here, when all the communication channels of the PHS base station 5 are busy, when the PHS base station 5
Let us consider a case where a call is made to the PHS2 accommodated in the.

The central processing unit 19 of the electronic private branch exchange 1
When the call channel memory 17 detects that the PHS base station 5 is busy, the call from the extension 9 is temporarily suspended. Thereafter, the inquiry circuit 18 is inquired of the base station memory 15 and the paging memory 16 to search for the paging device 11 in the area where the PHS2 holder is located, and activates the paging device 11.

On the other hand, the central processing unit 19 is
4 synthesizes the voice of the call to PHS2,
The fact that there is a call to the PHS 2 is broadcast from the amplifier and the speaker provided in the paging device 11.

[0015] When the owner of PHS2 who hears this broadcast dials a special number or function button from the nearest extension 8,
The central processing unit 19 of the electronic private branch exchange 1 detects this, and connects to the call from the extension 9 reserved earlier, so that the PHS2 holder can be called.

[0016]

As described above, according to the present invention,
Even if the wireless base station accommodating the mobile terminal to be called is busy or is out of order, a call is made from a paging device in an area where the mobile terminal is located by broadcasting or the like, and a call is connected from the nearest fixed telephone, It is possible to reliably call the portable terminal holder who wants to call, and it is possible to make contact, so that even an emergency call or the like can be reliably called.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an electronic private branch exchange according to the present invention.

FIG. 2 is a flowchart showing the operation of the present invention.

FIG. 3 is a diagram showing a registration example of a base station memory.

FIG. 4 is a diagram showing a registration example of a paging memory.

FIG. 5 is a diagram showing a registration example of a call channel memory;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic private branch exchange 2-4 PHS 5-7 PHS base station 8-10 Extension 11-13 Paging device 14 Voice synthesizer 15 Base station memory 16 Paging memory 17 Communication channel memory 18 Matching circuit 19 Central processing unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 7/12 7/38 F term (Reference) 5K015 AA01 AA10 AB02 AE05 AF05 CA02 CA07 CA12 5K024 AA43 BB07 CC11 CC14 DD01 FF06 GG01 GG03 GG11 5K049 AA09 BB04 BB16 EE02 EE16 FF01 FF12 FF43 GG05 5K067 AA21 AA34 BB04 BB22 BB44 DD13 EE02 EE16 FF13 GG00 HH23

Claims (3)

[Claims] 1. A private branch exchange accommodating a mobile terminal such as a portable telephone or a PHS under its control, a general fixed telephone, and a private branch exchange accommodating a paging device. A base station memory that stores the mobile terminal that performs the communication corresponding to the radio base station, a paging memory that stores the paging device corresponding to the accommodation area of the radio base station, and monitors a call state of the radio base station. Call channel memory to
When there is a call to the mobile terminal during all talks of the wireless base station, the paging device corresponding to the wireless base station that has registered the position of the mobile phone terminal is referred to in the paging memory, A private branch exchange, wherein the paging device notifies the mobile terminal that there is a call. 2. The private branch exchange, if a call is made to the mobile terminal during all calls of the radio base station, suspends the call and responds to the radio base station whose location is registered with the mobile phone terminal. The paging memory is referred to in the paging memory, the paging device notifies the mobile terminal that there is a call, and if there is a response from the general telephone with a special number, the call from the general telephone is suspended. 2. The method according to claim 1, wherein
Private branch exchange as described. 3. The private branch exchange according to claim 2, wherein said private branch exchange has a voice synthesizer for synthesizing a voice indicating that there is a call to a portable terminal.