JPS61265942A - Automatic dial device - Google Patents

Abstract

PURPOSE:To obtain an automatic dial device where setting of two numbers for a private branch of exchange and external line direct connection is not required by providing a storage number selection switch section, a number storage section, an external line call detection section, an external line call number suppressing section and an external call selection switch to an automatic dial device for an extension of a private branch of exchange. CONSTITUTION:A storage number signal 60 (e.g., 00423 64 1111) is outputted from a number storage section 52 by the depression of a storage number selection switch 53. When the external line call selection switch 55 is set to the external line direct position, the switch 55 turns off a command signal 61 regardless of the state of the signal 71 and activates the external line call detection section. When the switch 55 is set to the private branch of exchange position, the signal 61 is made always alive to inactivate the detection section 56. Since the signal 61 is not set, the said storage number signal becomes a call number signal 66 as it is. When the signal 61 is turned off, the first '0' (external line call number) is detected by the external line call detection section 56, an external line call number suppression command signal 62 is used to give a command signal to the external line call number suppressing section 57 thereby suppressing the external line call number '0' and the numbers below are used as sending number signals 66.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic dialing device, and more particularly to an automatic dialing device for telephones connected to public telephone lines and private branch exchanges.

[Prior Art and Related Art] When an automatic dialing device is conventionally used in connection with a telephone set connected to a private branch exchange, the following problems have occurred.

In other words, if the private branch exchange changes its functional form due to nighttime, holidays, breakdown of the private branch exchange, etc., and the telephone to which the automatic dialing device is connected is directly connected to the public telephone line of a public corporation, etc., the automatic dialing device will store the information. If you try to use the telephone number on the public telephone line that has been stored, the calling number for connecting the public telephone line to the private branch exchange, for example 0, is included in the stored number, so you cannot make a call as is.

Therefore, either a telephone number that does not include the calling number for public telephone line connection is stored separately from the existing number of the other party, or the call is made manually.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic dialing device that solves the above-mentioned problems and eliminates the need to set two numbers for private branch exchange and direct connection to outside lines.

[Means for solving problems]

According to the present invention, a storage number selection switch section, a number storage section,
It includes an outside line call detection unit, an outside line call number suppression unit, and an outside line call selection switch, and is characterized in that when connected to a private branch exchange, the outside line call number remains unchanged, and when connected to a public telephone line, the outside line call number is suppressed. An automatic dialing device is obtained.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In FIG. 1, reference numeral 53 denotes a storage number selection switch, which is composed of, for example, 30 switches, and can select 30 telephone numbers. Reference numeral 59 denotes an off-hook switch that forms a DC loop on the telephone line to bring it into a state equivalent to the hook-switched off state of a telephone. 54 is a part of the 1 number input key, which is used to manually dial a number or to store a number in the number storage section. Reference numeral 51 is a number storage switch for switching to the 1 number storage mode, and 55 is an outside line call selection switch, which has three positions: private exchange, direct outside line, and automatic switching. "External line" is the name given to public telephone lines, as opposed to private branch exchange lines, which are called extension lines.

When the number storage switch 51 is turned on, new storage contents are set from the number manual input section 54 in the corresponding storage position of the number storage section 52 that was pressed by the storage number selection switch section 53.

Next, automatic dialing will be explained. When the off-hook switch section 59 is turned on, an off-hook command signal 65 is generated.
When this is output, the line connection section 69 forms a DC loop. Further, the dial signal generating section 58 also becomes operable. In this state, when the selection switch of the storage number selection switch section 53 is pressed, the number stored from the number storage section 52 is output as the storage number signal 60. Reference numeral 56 denotes an outside line origination detection unit, which detects an outside line origination number for the private branch exchange, thereby outputting an outside line origination number suppression command signal 62. The outside line calling number suppression section 57 suppresses the outside line calling number portion of the signal 60 using the command signal 62.

When this automatic dialing device is connected to outside mK,
The outside line transmission selection switch 55 receives the outside line dial tone signal 71 from the outside line dial tone detection section 70 . When the outside line call selection switch 55° is set to automatic, the signal 71 turns off the outside line call detection suppression command signal 61 when the outside line call tone is detected, allowing the outside line call detection section 56 to function effectively. If the signal 71 does not detect an outside line dial tone, the outside line call selection switch 55 turns on the command/[za signal 61] and the outside line call detection section 5
Stop the function of 6. As a result, the command signal 62 is turned off, and the outside line calling number suppression section 57 sends the signal 60 as it is to the dial signal generation section 58.

Next, when the outside line selection switch 55 is in the direct position of the outside line, the outside line selection switch 55 turns off the command signal 61 regardless of the state of the signal 71.

Further, when the outside line transmission selection switch 55 is in the private branch exchange position, the command signal 61 is always turned on to put the outside line transmission detection section 56 in a non-operating state.

(b) is a diagram illustrating the off state.

00423 64 1111, which is the first number signal 66. FIG. 2 (In bJ, the first ``'O'' (outside line dialing number) is detected by the outside line dialing detection section 56, and a command signal 62 is sent to the outside line dialing number suppressing section 57 to suppress the outside line dialing number 11O''. are doing.

〔Effect of the invention〕

As explained above, the present invention has the effect of eliminating the need to set two numbers, one for private exchange and one for direct connection of external lines, as in the past, by switching between the internal exchange and the direct connection of external lines.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2(a)
, (b) is an explanatory diagram of the operation. 51... Number memory switch, 52... Number memory section, 53... Memory number selection switch, 54
...Number input key part, 55...External line call selection switch, 56...Outside line call detection section, 5
7... River/external line calling number suppression section, 58... Dial signal generation section, 59... Off-hook switch section, 69... Line connection section, 70... ...Outside line dial tone detection section. ／′〜＼゛・ Agent Patent Attorney Uchihara i)1. ．． -・ ((L) (b) Kaya 2 Figure

Claims (2)

[Claims] (1) Contains a storage number selection switch section, a number storage section, an outside line call detection section, an outside line call number suppression section, and an outside line call selection switch, and when connected to a private branch exchange, it is directly connected to a public telephone line. An automatic dialing device characterized in that it suppresses the outside calling number in case of a call. (2) The automatic dialing device according to claim (1), characterized in that it includes an outside line dial tone detection section.