JP3529283B2 - Line selection device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line selection device, and more particularly, to a line selection device which is connected to a plurality of external lines and selects one of the plurality of external lines for communication. A line selection device for use. 2. Description of the Related Art Conventionally, this type of line selection device uses a selection signal input from a telephone externally connected to the line selection device to select which line among a plurality of connected lines when making a call. It is used for the purpose of selecting whether to make a call or the like. For example, Japanese Unexamined Patent Publication No. 9-312704 discloses a transmission adapter connected to a wired communication line and a wireless telephone and selecting and using either the wired communication line or the wireless telephone when making a call. ing. [0004] However, the above prior art has the following problems. A first problem is that when a call is received on a plurality of lines connected to the line selection device, that is, a wired telephone line, a wireless telephone, or the like, an external telephone connected to the line selection device cannot be called. On the point. The reason for this is that there is no function for detecting an incoming call from a wired telephone line and a function for detecting an incoming call from a wireless telephone line, and a function of transmitting a signal for calling an external telephone connected to a line selecting device. Because there is no. A second problem is that when one line is in use and another incoming call is received, it is not possible to respond to the incoming call. The reason is that there is no incoming call detection function, and the external telephone connected to the line selection device is provided to cope with the two communication lines, wired and wireless. That is, only one device is connected. SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has an incoming call function in a line selection device which is connected to a plurality of external lines and selects any one of the plurality of external lines for use in communication. It is an object of the present invention to provide a line selecting device having the same. According to the present invention, in order to achieve the above object, the present invention is connected between a plurality of external lines and a telephone which performs communication via the external lines, A line selection device that selects any one of the lines for use in communication and mediates communication from the telephone through the external line, wherein at least one of the plurality of external lines is
One is a wired telephone line, at least one of the plurality of external lines is a wireless telephone line, and a wired incoming detection means for detecting a first incoming signal which is a 16 Hz signal indicating an incoming call from the wired telephone line. And when the wired incoming detection means detects an incoming call from the wired telephone line,
First switching means for directly connecting the wired telephone line to the telephone; wireless incoming detection means for detecting a second incoming signal indicating an incoming call from the wireless telephone line; Wireless incoming call notifying means for generating a third incoming signal which is the same 16 Hz signal as the first incoming signal when detecting an incoming call from a line, and sending out the generated third incoming signal to the telephone; An off-hook detecting means for detecting an off-hook of the telephone when the wireless incoming notification means is transmitting the third incoming signal to the telephone, and detecting an off-hook of the telephone by the off-hook detecting means. Second switching means for directly connecting the wireless telephone line and the telephone, and at the time of calling, based on a selection signal for selecting any of the plurality of external lines. Te, and selects a line to be used. An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a connection system diagram when an embodiment of a line selection device according to the present invention is used. Line selection device 20 in the present embodiment
Is a wired public line 3 at the time of calling, as shown in FIG.
And the wireless public line using the mobile phone 2 are automatically selected, and the bell of the external telephone 1 connected to the line selection device is connected even when an incoming call is received from either line. You can ring and call. FIG. 2 is a block diagram showing the internal configuration of the line selection device 20 shown in FIG. In FIG. 2, the line selection device 20 includes a signal transmission line 4, an audio signal unit 5, a line monitoring unit 6, and a bell signal recognition unit 7 for recognizing a bell signal coming from the signal transmission line 4.
And a selection signal transmitting unit 8, a selection signal recognizing unit 9, a bell signal transmitting unit 10 for ringing the bell of the external telephone 1, a line switching unit 12 for switching lines, and a control unit 11 for controlling them. . The control unit 11 includes a first means for causing the mobile phone 2 to perform a call preparation operation, a second means for causing the mobile phone 2 to make a dial call, a control unit for controlling the voice signal unit 5 and the external telephone 1 and the other party's telephone. 3rd to send and receive audio signal between
Means, a fourth means for controlling the bell signal transmitting unit 10 after the reception of the incoming call to the mobile phone 2 to ring the bell of the external telephone 1, and a line switching unit 12 after recognizing the incoming call from the wired public line. Fifth means for controlling and directly connecting the wired public line to the external telephone 1. Next, the operation of the line selecting apparatus according to the present embodiment will be described with reference to the drawings. The external telephone 1 shown in FIG. 1 may be a single external telephone, or may be a PBX or key telephone main unit capable of accommodating several extension telephones. The mobile phone 2 can control outgoing / incoming calls from the outside, and is required when constructing a public line using a wireless line. The wired public line 3 is a general public line. When the selection signal of the portable telephone 2 is inputted from the external telephone 1, the line selecting device 20
And the mobile phone 2 are directly connected to each other to construct a public line using a wireless line. The line selecting device 20 is connected to the external telephone 1
When a selection signal for the wired public line 3 is input, the external telephone 1 and the wired public line 3 are directly connected to each other, and a public line using a wired line is constructed. When an incoming call arrives at the mobile phone 2, when the incoming signal output from the mobile phone 2 is recognized, a bell signal (for example, a 16 Hz signal) generated inside the line selecting device 20 is output. The signal is transmitted from the signal transmitting unit 10 to the external telephone 1 and the mobile telephone 2
And the external telephone 1 are directly connected. When an incoming call is received from the wired public line 3, when the bell signal recognizing unit 7 recognizes a bell signal (for example, a signal of 16 Hz) output from the wired public line 3, the line switching unit 12 is switched, and the line switching unit 12 is switched. The public line 3 and the external telephone 1 are directly connected. When a call is made from the external telephone 1 to the wired public line 3, the line switching unit 12 does not connect to either the wired public line 3 or the portable telephone 2, and
In step 2, the selection signal of the other party is recognized. If the recognized signal is that of the wired public line 3, the control unit 11 re-transmits the selection signal via the selection signal transmission unit 8, and thereafter, the line switching unit 12
Connects the external telephone 1 and the wired public line 3 directly. On the other hand, when a call is made from the external telephone 1 to the wireless public line via the mobile telephone 2, the line switching unit 1
2 is connected to neither the wired public line 3 nor the mobile phone 2, and the selection signal recognition unit 9 recognizes the other party's selection signal. If the recognized signal is that of a wireless public line, the control unit 11 controls the mobile phone 2 and causes the mobile phone 2 to make a call based on the recognized selection signal. When a call is received from a wired public line, the line switching unit 12 recognizes the incoming call bell in the bell signal recognition unit 7 because the line is cut off from the external telephone 1. When recognizing the incoming call bell, the control unit 11 switches the line switching unit 12 to directly connect the wired public line 3 to the external telephone 1. On the other hand, when a call is received from the wireless public line to the portable telephone 2, the incoming signal from the portable telephone 2 is recognized by the control unit 11, and the bell signal transmitting unit 10 rings the bell of the external telephone. When the external telephone 1 is off-hook, the control unit 11 controls the line switching unit 12 to directly connect the mobile telephone 2 and the external telephone 1. When there is no incoming / outgoing call operation, the line switching unit 12 is not connected to any line. Next, another embodiment of the present invention will be described. Referring to FIG. 2, it can be seen that the detection method when the call arrives at the portable telephone 2 and the detection method when the call arrives at the wired public line 3 can be controlled separately or simultaneously. From this, when one line is in use, and when an incoming call is received from the other line, the control unit 11 which performs the respective controls issues some signal to the line in use, and uses the external telephone 1 Can be notified of the incoming call. In this case, the user may be notified only of the incoming call, or the line switching unit 12 may be controlled to enable a three-party call. As described above, according to the present invention,
It has a function to detect an incoming call from a wired telephone line and an incoming call from a wireless telephone line, and a function to send out a signal to call an external telephone. In some cases, a connected external telephone can be called. Further, since a method for detecting an incoming call to a portable telephone and a method for detecting an incoming call to a wired public line can be controlled separately or simultaneously, when one line is in use, When an incoming call is received on the other line, each control unit can emit some signal to the line in use to notify the user of a new incoming call. In this case, the user may simply be notified of the incoming call, or the line switching unit may be controlled to enable a three-party call.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a connection system diagram when an embodiment of a line selection device according to the present invention is used. FIG. 2 is a block diagram showing an internal configuration of the line selection device shown in FIG. [Description of Signs] 1 External telephone 2 Mobile telephone 3 Wired public line 4 Signal transmission line 5 Audio signal unit 6 Line monitoring unit 7 Bell signal recognition unit 8 Selection signal transmission unit 9 Selection signal recognition unit 10 Bell signal transmission unit 11 Control Part 20 Line selection device

Continuation of the front page (56) References JP-A-8-265397 (JP, A) JP-A-9-312704 (JP, A) JP-A-63-278427 (JP, A) JP-A-1-157661 (JP) JP-A-63-234665 (JP, A) JP-A-64-23150 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04M 11/00 303 H04M 1/00 H04B 7/26 109

Claims (1)

(57) [Claim 1] It is connected between a plurality of external lines and a telephone which performs communication via the external lines, and is used to use any one of the plurality of external lines for communication. A line selection device for selecting and mediating communication from the telephone via the external line, wherein at least one of the plurality of external lines is a wired telephone line and at least one of the plurality of external lines
One is a wireless telephone line, and a 16-Hz signal indicating an incoming call from the wired telephone line.
That a wired call detection means for detecting a first incoming signal, upon detecting an incoming call from the wired telephone line by the wired call detecting means, a first switching means for directly connecting said said wire telephone line telephone Wireless incoming call detection means for detecting a second incoming signal indicating an incoming call from the wireless telephone line; and when the wireless incoming call detection means detects an incoming call from the wireless telephone line, the first incoming signal 16Hz same as
A third incoming signal, which is a signal of
Wireless incoming notifying means for transmitting an incoming signal to the telephone; off-hook detecting means for detecting off-hook of the telephone when the wireless incoming notifying means is transmitting the third incoming signal to the telephone; When the off-hook detecting means detects an off-hook of the telephone, a second switching means for directly connecting the wireless telephone line and the telephone is provided, and at the time of outgoing call, one of the plurality of external lines is selected. A line selection device for selecting a line to be used based on a selection signal.