JPH02166955A - Private branch exchange - Google Patents

Abstract

PURPOSE:To attain selective call incoming to a telephone set and facsimile equipment, which are housed in a common extension, by providing a storing means to store data, which show a common housing position, and equipment type data for each extension number which is allocated respectively to the telephone set and facsimile equipment. CONSTITUTION:An extension number conversion table 32 is provided to store the data, which show the common housing position, and the equipment type data, which show whether a call is incoming to the telephone set or facsimile equipment, in advance for each extension number allocated respectively to telephone sets 11 and 13 and facsimile equipments 12 and 14. When a dial number is dialed, the table 32 is retrieved and the housing position and equipment type corresponding to the extension number are retrieved. When the type of an equipment is the telephone set, a calling signal for telephone set is controlled so as to be sent through the common housing position to the telephone set. In the case of the facsimile equipment, a calling signal for the facsimile equipment is sent through the common housing position to the facsimile equipment. Thus, when the telephone set and facsimile equipment are housed in the common extension, a call can be selectively incoming to the telephone set and facsimile equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a private branch exchange (PBX) capable of accommodating a telephone and a facsimile on a common extension.

BACKGROUND OF THE INVENTION In general, facsimile machines use the same ringing signal (1
6Hz), and a dedicated ringing signal (13Hz).
00Hz), and facsimiles that arrive with the same ringing signal as telephones can use the same interface as telephones, so they can be housed together with telephones in a common extension of a private branch exchange, and A call can be received by a ringing signal.

On the other hand, a facsimile that receives a call using a ring signal (1300 Hz) different from that of a telephone cannot use the same interface as the telephone, and therefore cannot be accommodated in a common extension of the private branch exchange with the telephone.

Problem to be Solved by the Invention However, when a telephone and a facsimile are housed in a common extension, a common extension number is assigned to the telephone and the facsimile, so even when a call is received on the facsimile, the telephone rings and creates noise. Furthermore, it is necessary to switch to a facsimile after answering by telephone, which is a troublesome operation.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a call signal control device that can selectively receive calls on a telephone and a facsimile housed in a common extension.

Means for Solving the Problems In order to achieve the above object, the present invention provides means for generating a ringing signal for a telephone, means for generating a ringing signal for a facsimile, and a system in which the telephone and facsimile are accommodated in a common extension. In the case where the telephone and facsimile are each assigned an extension number, the dial number is is dialed, this storage means is referred to to search for the accommodation location and model corresponding to that extension number, and if the model is a telephone, a ringing signal for the telephone is sent to the telephone via the common accommodation location. In the case of a facsimile, a facsimile call signal is sent to the facsimile via the common storage position.

According to the above configuration, the present invention assigns different extension numbers even if a telephone receiving a telephone call signal and a facsimile receiving a telephone call signal and a facsimile receiving a telephone call receiving a facsimile call signal are assigned different extension numbers. You can receive a call at any time.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a private branch exchange according to the present invention, FIG. 2 is an explanatory diagram showing the storage contents of the extension number conversion table shown in FIG. 1, and FIG. FIG. 4 is an explanatory diagram showing the storage contents of the call control table. FIG. 4 is an explanatory diagram showing the storage contents of the extension idle table shown in FIG.

In FIG. 1, numerals 11 and 12 are a telephone and a facsimile connected to a common extension, respectively, and the facsimile 12 receives a call using a dedicated calling signal (1300 Hz). 13 and 14 are a telephone and a facsimile connected to different extensions, and even if the facsimile 14 receives a call using the same ringing signal (16Hz) as the telephone 11 and 13, it uses a dedicated ringing signal (1300H).
z).

Note that the telephone 11, facsimile 12, telephone 13, and facsimile 14 each have a different extension number, for example l'
-200j, [201J, "202", and "203" are assigned to 0 15.16.17, respectively, are extension circuits for accommodating telephone 11 and facsimile 12, telephone 13, and facsimile 14, and 20 is 16Hz The ringing signal trunk 21 generates a ringing signal of 1300 Hz.

Note that the extension circuits 15, 16, and 17 have different accommodation position numbers, such as l'-001J, roloJ, and 10.
20J and each ring signal trunk 20.21 is assigned a different number, e.g. "101", l-10
2J is assigned.

30, by controlling the switch 18, the communication path between the extension circuits 15, 16, and 170, and the extension circuit 15.16.
．． 17 and a calling signal trunk 20.21 or a central office line trunk (not shown). An extension number conversion table 32 as shown in FIG. 2 and a call control table 23 as shown in FIG.
and an extension line vacancy table 34 as shown in FIG.

The extension number conversion table 32, as shown in FIG. r02J) is provided.

As shown in FIG. 3, the call control table 33 includes call signal controllers corresponding to terminal types "01" and "02".

It has an area in which the link number 1'-Loll, "102" is stored.

As shown in FIG. 4, the extension vacancy table 34 indicates whether the extension circuit is vacant (data "0") or blocked (data "0") for each accommodation position number of extension circuits 15, 16, and It has an area in which air blockage data indicating "1") is stored.

Next, the operation of the above embodiment, particularly the operation when making and receiving calls between telephones, will be explained.

In FIG. 1, for example, when the telephone 13 goes off-hook and dials the extension number "200" of the telephone 11, the central processing unit 31 of the common control device 30 first calls the extension number 1-200 J area of the extension number conversion table 32. By referring to the number of the housing position of the called telephone 11,
001" and the terminal type "01", and then refer to the storage position number [001J area of the extension vacant table 34, and if it is vacant (data "0"), search for the data "01".
Rewrite it to 1.

Next, the central processing unit 31 searches the number "101 J" of the calling signal trunk 20 by referring to the area of the terminal type "01" in the call control table 33, and finds the number [[ 001J extension circuit 15
After confirming that the extension circuit 15 is vacant, the switch 18 is controlled so that the extension circuit 15 and the calling signal trunk 20 are connected.

Therefore, the 16Hz ringing signal is transmitted to the ringing signal trunk 2.
0 to telephone 11 via switch 18 and extension circuit 15.
The telephone 11 rings.

In this case, the facsimile 12 commonly accommodated in the extension circuit 15 is set in advance not to respond to the 16 Hz ringing signal, so that the facsimile 12 does not receive calls.

Next, the operation for sending and receiving calls between facsimile machines will be explained.

In FIG. 1, for example, when the facsimile 14 goes off-hook and dials the extension number "2 old" of the facsimile 12, the central processing unit 31 of the common control unit 30 similarly
By referring to the area of the extension number "201 J" in the extension number conversion table 32, the number "0 old" and the terminal type "02" of the accommodation location of the called side facsimile 12 are searched,
Next, the storage position number “00” of the extension table 34 is entered.
1" area and if it is vacant (data "0"
) is rewritten to data “1”.

Next, the central processing unit 31 searches for the calling signal trunk 210 number "102" by referring to the area of the terminal type "02" in the calling control table 33, and searches for the number r 001 of the accommodation position of the called side facsimile 12. After confirming that the extension circuit 15 of J is vacant, the switch 18 is controlled so that the extension circuit 15 and the calling signal trunk 21 are connected.

Therefore, a 1300 Hz paging signal is sent from the paging signal trunk 21 to the facsimile 12 via the switch 18 and the extension circuit 15, and arrives at the facsimile 12.

In this case, the telephone 11 commonly accommodated in the extension circuit 15
does not respond to the 1300 Hz ejection signal, so no noise is generated.

Further, according to the above embodiment, when the telephone 11 or the facsimile 12 commonly housed in the extension circuit 15 enters the calling state (and the calling state), the data at the accommodation position in the extension idle table 34 becomes the blocked state. Therefore, there will be no double incoming calls or collisions between incoming and outgoing calls.

In the above embodiment, the case where a call is made from an extension is explained, but even when a call is made from a central office line such as dial-in, the telephone and facsimile can be accommodated in a common extension and the call can be selectively received. Furthermore, even if a terminal device that combines a telephone and a facsimile is housed, it is possible to selectively receive calls using both functions.

DETAILED DESCRIPTION OF THE INVENTION As described above, the present invention provides a means for generating a ring signal for a telephone, a means for generating a ring signal for a facsimile, and a method for generating a ring signal for a facsimile when the telephone and facsimile are accommodated in a common extension. The system is equipped with a storage means for storing in advance data indicating a common housing position for each extension number reassigned to a telephone and a facsimile, and model data indicating whether it is a telephone or a facsimile. When the storage means is referred to, the storage location and model corresponding to the extension number are searched, and if the model is a telephone, a ringing signal for the telephone is sent to the telephone via the common storage location. If the facsimile is a facsimile, the facsimile ring signal is sent to the facsimile machine via the common storage position, so that the telephone ring signal for the telephone receives the call, and the facsimile ring signal If incoming facsimiles are accommodated on a common extension, incoming calls can be selectively received by the telephone and facsimile.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a private branch exchange according to the present invention, FIG. 2 is an explanatory diagram showing the storage contents of the extension number conversion table shown in FIG. 1, and FIG. FIG. 4 is an explanatory diagram showing the storage contents of the call control table. FIG. 4 is an explanatory diagram showing the storage contents of the extension idle table shown in FIG. 11.13...telephone, 12.14...facsimile, 15.16.17...extension circuit, 20.21...
- Calling signal trunk, 30 - Common control device, 31...
Central processing unit, 32...extension number conversion trunk, 33
. . . Call control trunk, 34 . . . Extension idle table. Name of agent: Patent attorney Shige Takashi Awano and one other person Figure 2 Figure 1 Figure 3 Figure 4

Claims (2)

[Claims] (1) Means for generating a ringing signal for a telephone, means for generating a ringing signal for a facsimile, and, when the telephone and facsimile are accommodated in a common extension, extension numbers respectively assigned to the telephone and facsimile. storage means for storing in advance data indicating a common housing position for each phone and model data indicating whether it is a telephone or a facsimile; It searches for the housing position and model corresponding to the number, and if the model is a telephone, controls the ringing signal for the telephone to be sent to the telephone via the common housing position, and if it is a facsimile, controls the ringing signal for the telephone to be sent to the telephone via the common housing position. a private branch exchange having means for controlling the call signal of the telephone to be transmitted to the facsimile machine through the common storage location. (2) According to claim (1), data indicating a blockage state of a common accommodation position of the telephone and facsimile is stored, and when the common accommodation position is blocked, incoming and outgoing calls from the common accommodation position are prohibited. private branch exchange.