JPH071875Y2 - Telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention is provided with a call recording and / or call monitor terminal capable of performing call recording and / or call monitoring during a call, and further, a hold tone is applied to a line when a call is held. The present invention relates to a telephone having a function capable of transmitting data.

2. Description of the Related Art A conventional example of this type of telephone is shown in FIG. In the figure, 1 and 2 are terminals, and the diode bridge circuit 3 is connected to a telephone line through the terminals 1 and 2. A switching circuit 4 for opening and closing a line is connected to the diode bridge circuit 3, and a speech network circuit 5 is connected to the switching circuit 4.
The speaker 6 of the handset is connected to the speech network circuit 5 via the call signal device 1, and the voice of the other party is output from the speaker 6 during a call. A call recording and / or call monitor terminal 7 is connected to the call signal line 1 through a branch line 12. By connecting this terminal 7 to a recorder or another speaker during a call, the voice during the call can be recorded or monitored. Further, the speech network circuit 5 is connected to a holding sound generation circuit 8 via a holding signal line l3. The hold sound generation circuit 8 has a mask ROM in which music information is programmed in advance, and the hold sound melody can be switched by a switching signal from the melody switching circuit 9.

In the telephone having such a configuration, when a holding switch (not shown) is pressed during holding, a holding signal is given to the holding sound generating circuit 8, whereby the holding sound generating circuit 8 is operated by the melody switching circuit 9. A hold sound for the melody set to be switched is generated and output to the speech network circuit 5 via the hold sound signal line l3. The hold tone is further connected to the telephone line from the speech network circuit 5 through the switching circuit 4 and the diode bridge circuit 3.

Problems to be Solved by the Invention In the above-mentioned conventional example, the melody generating IC of the hold tone generating circuit 10 is used.
Within the range of the music information preprogrammed in the built-in mask ROM, it is possible to change the telephone line sending hold tone, but it is impossible to select an arbitrary holding tone and send it to the telephone line.

The object of the present invention is to provide a call recording terminal and / or a call monitor terminal also as an external hold sound input terminal,
It is an object of the present invention to provide a telephone capable of arbitrarily selecting a holding tone to be sent to a telephone line without expanding ROM or providing a dedicated input terminal.

Means for Solving the Problems The present invention provides a speech network circuit, a speaker connected to the speech network circuit via a call signal line, a call recording and / or call monitor terminal, and a hold sound that generates a hold sound when held. The sound generating circuit, a changeover switch circuit having first to fourth fixed contacts, and a manual setting means for setting the changeover state of the changeover switch circuit are provided, and the first fixed contact of the changeover switch circuit has the first connection line. Connected to the speech network circuit via the second fixed contact
The third fixed contact is connected to the call signal line via the third connection line, and the fourth fixed contact is connected to the hold sound generation circuit via the connection line, and the fourth fixed contact is connected to the call sound and / or the fourth connection line. A first switching state in which the first fixed contact and the second fixed contact are connected and the third fixed contact and the fourth fixed contact are connected by being connected to the call monitor terminal and by operating the manual setting means; It is characterized in that the two switching states of the second switching state in which the first fixed contact and the fourth fixed contact are connected and the second fixed contact and the third fixed contact are connected can be selectively switched.

Operation According to the above configuration, the first fixed contact and the second fixed contact are connected in the first switching state by the operation of the manual setting means,
Moreover, the third fixed contact and the fourth fixed contact are connected. Therefore, in the first switching state, the hold sound generation circuit is connected to the speech network circuit via the first connection line and the second connection line, and the hold sound is output from the hold sound generation circuit to the speech network circuit during the hold, and By connecting the third fixed contact and the fourth fixed contact, the call recording and / or call monitor terminal is connected to the call signal line via the third connection line and the fourth connection line. For this reason,
By connecting the terminal to an external recorder or another speaker, call recording and call monitoring can be performed during a call.

Further, when the second switching state is set by the manual setting means, the first fixed contact and the fourth fixed contact are connected,
Moreover, the second fixed contact and the third fixed contact are connected. First
By connecting the fixed contact and the fourth fixed contact,
The call recording and / or call monitor terminal is connected to the speech network circuit via the first connection line and the fourth connection line. As a result, it becomes possible to connect the terminal to a sound generating device such as a cassette tape recorder or a radio, input an arbitrary holding tone to the telephone from these sound generating devices, and send out to the telephone line.

Embodiment 1 FIG. 1 is a block diagram of the vicinity of a holding sound generating section of a telephone according to the present invention. In this telephone, the portions corresponding to those of the conventional telephone shown in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. In the figure, 10 is a two-circuit contact changeover switch circuit, which includes four first to fourth fixed contacts P1.
~ Has P4. The first fixed contact P1 is connected to the speech network circuit 5 via the first connection line K1.
Further, the second fixed contact P2 is connected to the hold sound generating circuit 8 via the second connection line K2, the third fixed contact P3 is connected to the call signal line 1 via the third connection line K3, and the fourth fixed The contact point P4 is connected to the call recording and / or call monitor terminal 7 via the fourth connection line K4. The changeover switch circuit 10 is a changeover key provided on the operation unit of the telephone.
With 11, it is possible to switch between the first switching state shown by the solid line and the second switching state shown by the phantom line. That is, the first switching state is the first fixed contact P1 and the second fixed contact P2.
Are connected and the third fixed contact P3 and the fourth fixed contact P4 are connected. In the second switching state, the first fixed contact P1 and the fourth fixed contact P4 are connected and the second fixed contact is
This is a state in which P2 and the third fixed contact P3 are connected.

When the changeover switch circuit 10 is changed over to the first changeover state by operating the changeover key 11, the holding sound from the holding sound generation circuit 8 is output to the speech network circuit 5 via the connection lines K2 and K1. Further, the hold tone is sent to the telephone line via the switching circuit 4 and the diode bridge circuit 3. Further, in such a first switching state, when the terminal 7 is connected to a recorder or another speaker during a call, the audio signal line 1 from the speech network circuit 5, the second connection line K3, the fourth connection line 1K4, It is output to an external recorder or the like via the terminal 7 and can perform call recording and call monitoring.

When the changeover switch circuit 10 is changed to the second changeover state by operating the changeover key 11, the hold signal is generated by the hold sound generation circuit 8.
, The hold tone generation circuit 8 generates a hold tone, but since the contact P2 and the contact P3 are connected, the hold tone is not input to the speech network circuit 5 and the hold tone is not sent to the telephone line. . Further, since the contact P3 and the contact P4 are not connected, it is not possible to record or monitor the call situation through the terminal 7. However, in this second switching state, the contact 1 and the contact P4 are connected, so by connecting the terminal 7 to an audio device such as a cassette tape recorder or a radio, a holding sound from the audio generator is sent to the telephone. You can enter. That is, the held sound from the external sound generator is given to the speech network circuit 5 via the terminal 7, the connection line K4, and the connection line K1. Further, the hold tone is sent to the telephone line via the switching circuit 4 and the diode bridge circuit 3. Therefore, it is possible to input a hold tone from the outside using an external sound generator and send it out to the telephone line, and to put a hold tone outside the programmed music information range of the ROM in the hold tone generating circuit 8 to the telephone line. It becomes possible to send.

Effect of the Invention As described above, according to the present invention, it is possible to arbitrarily select the hold tone to be sent to the telephone line by inputting the hold tone from the outside.

In addition, when inputting a holding tone from the outside, it can be used as a call recording and / or call monitor terminal that is conventionally provided, so that it is not necessary to newly provide a dedicated input terminal, and the circuit configuration can be simplified. Can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration related to generation of a hold of a telephone according to the present invention, and FIG. 2 is a block diagram of a conventional example. 5 ... Speech network circuit, 6 ... Speaker, 7
...... Call recording and / or call monitor terminal, 8 ... Holding tone generation circuit, 10 ... Changeover switch circuit, 11 ... Changeover key,
P1 …… First fixed contact, P2 …… Second fixed contact, P3 …… Third
Fixed contact, P4 ... 4th fixed contact, 1 ... call signal line, K1 ... first connection line, K2 ... second connection line, K3
...... 3rd connection line, K4 ...... 4th connection line.

Claims (1)

[Scope of utility model registration request] 1. A speech network circuit, a speaker connected to the speech network circuit via a call signal line, a call recording and / or call monitor terminal, and a hold sound generation circuit for generating a hold sound when on hold. A changeover switch circuit having first to fourth fixed contacts and a manual setting means for setting the changeover state of the changeover switch circuit are provided, and the first fixed contact of the changeover switch circuit is connected to the speech network circuit via the first connection line. Connected, the second fixed contact is connected to the holding sound generating circuit via the second connection line, the third fixed contact is connected to the call signal line via the third connection line, and the fourth fixed contact is the fourth. It is connected to a call recording and / or call monitor terminal through a connection line, and the first fixed contact and the second fixed contact are operated by the operation of the manual setting means.
A first switching state in which a fixed contact is connected and a third fixed contact and a fourth fixed contact are connected, and a first fixed contact and a fourth fixed contact are connected and a second fixed contact and a third fixed contact A telephone which is capable of selectively switching between two switching states of a second switching state in which and are connected.