CN201947317U - Telephone set capable of transferring incoming call - Google Patents

Abstract

The utility model relates to a telephone set capable of transferring an incoming call, which comprises a casing, wherein a memory, an incoming call detection circuit, an MCU (Micro Control Unit) control circuit, a picking hooker control circuit, a DTMF (Dual-tone Multi-frequency) signal transmitting circuit are arranged in the casing to form a circuit main board, a liquid crystal display circuit and a keyboard scanning circuit board; the MCU control circuit is connected with the memory, the incoming call detection circuit, the picking hooker control circuit, the DTMF signal transmitting circuit, the liquid crystal display circuit and the keyboard scanning circuit board through a pin; and an external line interface connected into a PSTN (Public Switched Telephone Network) line is connected with the incoming call detection circuit, the picking hooker control circuit and the DTMF signal transmitting circuit in the casing. The casing panel is provided with a transfer key, a return key and a plurality of one-key transfer modules for transferring the incoming call. Self parameters of the telephone set are arranged to be matched with a locally-used fixed network switcher for providing a quick, stable and convenient incoming call transfer function. By using the telephone set, the defects that the traditional communication terminal is instable in incoming call transfer, is inconvenient to transfer and the like are overcome.

Description

The telephone set of switchable incoming call

Technical field

The utility model relates to electrical communication technology, is a kind of telephone set of switchable incoming call specifically.It can help, and the user is quick, stable, switching is sent a telegram here easily.

Background technology

The switch of telecommunications mainstream carrier use at present has Huawei, in emerging, Lucents etc. are multiple, the fixed network switch all has the calls transfer function, at present, the fixed network switch mainly contains following two kinds of calls transfer modes: the one, and the hooking switching: the calling subscriber calls out the called subscriber, hooking behind called subscriber's off-hook, switch detects to be judged it behind called subscriber's hooking and wants forward call, sending switching to calling subscriber side holds music, simultaneously to called subscriber side's Sending dialled number sound prompting subscriber dialing, after the called subscriber receives dialing tone, send the third party's communicating number that to transfer to switch, called subscriber's on-hook behind the connection third party number, switch is connected the third party of calling subscriber and switching; After the called subscriber sent the third party's communicating number that will transfer to switch, if the third party is just busy, the called subscriber is hooking again, and switch recloses calling subscriber and called subscriber.Another is the switching of dialling the number: the calling subscriber calls out the called subscriber, dial one or a few item sign indicating numbers such as *, # behind called subscriber's off-hook, switch receives to be judged it behind the number that the called subscriber dials and wants forward call, sending switching to calling subscriber side holds music, simultaneously to called subscriber side's Sending dialled number sound prompting subscriber dialing, after the called subscriber receives dialing tone, send the third party's communicating number that to transfer to switch, called subscriber's on-hook behind the connection third party number, switch is connected the third party of calling subscriber and switching; After the called subscriber sent the third party's communicating number that will transfer to switch, if the third party is just busy, the called subscriber dialled one or a few item sign indicating numbers such as *, # again, and switch recloses calling subscriber and called subscriber.

At present, the telephone set that uses in fixed network mostly is by manual hooking of user or manual or a few item sign indicating numbers such as *, # dialled, hear dialing tone after, dial third party's number again, finish switch over operation.Because the fixed network switch will be provided with certain calls transfer mode according to the demand of telecommunication department when installing; telecommunication department can not convey to each terminal use exactly with this forwarding method; and terminal use's hand-guided hooking is hung up the time of outside line and the detection hooking time of switch setting may not match; the client makes a call so the user runs into through regular meeting; in the time of need being given to third parties such as other departments or personnel and handling; it usually is the switching failure; or do not know how this transfers, or the just busy talk line of not knowing how to return with the calling subscriber of third party.

Summary of the invention

Technical problem to be solved in the utility model is to overcome deficiencies such as the switching of above-mentioned existing communication terminal caller is unstable, switching inconvenience, provides a kind of structure reasonable, can be fast, telephone set stable, that transfer and send a telegram here easily.

The technical scheme in the invention for solving the above technical problem is: a kind of telephone set of switchable incoming call, comprise a housing, and numerical key and " setting ", " affirmation " function key are arranged on the case panel; Be equipped with in the housing by memory, the circuit main board, liquid crystal display circuit plate and the keyboard scanning circuit plate that come power detection circuit, MCU control circuit, control dislodging machine circuit, dtmf signal transtation mission circuit to form, the MCU control circuit by the pin connected storage, come power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit, liquid crystal display circuit and keyboard scanning circuit; The outer line interface that inserts the PSTN circuit joins with coming power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit in housing, it is characterized in that: be provided with " switching " key of a switching incoming call, a switching third party returns calling party when just busy " returning " key in the described keyboard scanning circuit; Described case panel is printed on the printed words of " switching ", " returning " on the corresponding position of button; The number that the switching parameter of storing in the described memory has the calls transfer mode, dialled before hang up the outside line time (hooking time), the switching.

Also be provided with the shortcut of several key switchings in the keyboard scanning circuit described in the utility model; Described case panel is printed on the printed words of above-mentioned shortcut on the corresponding position of shortcut; The communicating number of storage shortcut correspondence in the described memory.The utility model can be changed the communicating number of shortcut correspondence at any time.

The calls transfer mode of storing in the utility model memory can be the hooking switching and the switching of dialling the number.

The keyboard scanning circuit that the utility model MCU control circuit connects by line RJ9 has defined the shortcut of " switching " key, " returning " key and the switching of F1-F12 one key that realize signaling transfer point.The MCU control circuit is controlled exactly according to the switching parameter of storing in the memory and is hung up the outside line time or dial the preceding number of switching, the user only needs and can search the communicating number that needs are transferred by the upper and lower key that turns over, can finish switching by " switching " key then, the user also directly finishes switching by the F1-F12 shortcut of third party's communicating number correspondence.Compared with prior art, the utlity model has following beneficial effect: the utility model structure rationally, easy to operate, reliable, phone self parameter can be set cooperate the local fixed network switch that uses, for the user provides fast, stablizes, calls transfer function easily.Having solved deficiencies such as the switching of prior art communication terminal incoming call is unstable, switching inconvenience, is the desired electrical phone that uses in the many occasions of departments such as enterprises and institutions, factory, hotel, hotel.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the utility model composition frame chart.

Fig. 2 is the utility model keyboard scanning circuit schematic diagram.

Fig. 3 is the utility model housing face version schematic diagram.

Embodiment:

Fig. 1 is the utility model composition frame chart.As can be seen from Figure 1, a kind of telephone set of switchable incoming call, comprise a housing, be equipped with in the housing by memory, the circuit main board, liquid crystal display circuit plate and the keyboard scanning circuit plate that come power detection circuit, MCU control circuit (hereinafter to be referred as MCU), control dislodging machine circuit, dtmf signal transtation mission circuit to form, MCU by the pin connected storage, come power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit, liquid crystal display circuit and keyboard scanning circuit; The outer line interface that inserts the PSTN circuit joins with coming power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit in housing.The MCU configuration information that the user is all is saved in the memory, judge that by detecting power detection circuit this off-hook answers the call or call, control by control dislodging machine circuit and to hang up or give connection to external call, be dealt into the PSTN circuit by the dtmf signal transtation mission circuit number of will transferring, detect user's operation by keyboard scanning circuit, by the operation information of LCDs explicit user.

Fig. 2 is the utility model keyboard scanning circuit schematic diagram.As can be seen from Figure 2, the keyboard scanning circuit that MCU connects by line RJ9, the numerical key that has except the definition common phone reaches the function keys such as " setting ", " affirmation ", has also defined the shortcut of " switching " key, " returning " key and the switching of F1-F12 one key that realize signaling transfer point.That is to say " switching " key that is provided with a switching incoming call in the described keyboard scanning circuit, a switching third party returns calling party when just busy " returning " key; Further also be provided with the shortcuts of totally 12 one keys switching from F1-F12.

Fig. 3 is the utility model housing face version schematic diagram, all buttons that are MCU definition among Fig. 2 all have mark on phone chassis dignity version, be to have numerical key to reach the printed words of " setting ", " affirmation ", " switching ", " returning " and F1-F12 function key on the case panel, and the operation of LCDs guides user is arranged.

The switching parameter of storing in the memory described in the utility model is hung up the outside line time (hooking time) before calls transfer mode, group communicating number of transferring are arranged, is dialled the number of being dialled before the communicating number of switching.

During use, outer line cap is inserted in the PSTN circuit, the user enters the state of setting by the key that is provided with on the panel, is being provided with under the state, and the user carries out setting operation.By downturning key, MCU enters the setting of the next item down in being provided with, and the user presses acknowledgement key, and MCU is saved in the information that is provided with in the memory.MCU obtains the user by all operations that panel button carried out by detecting the keyboard scanning circuit that pin RJ9 connects in the whole setting up procedure, and all information that the user is provided with all are saved in the memory.

MCU shows 1-type on liquid crystal, represent that first is the calls transfer mode that phone is set, the substitute mode that the user selects according to local fixed network switch, if the hooking switching then imports 1, phone adopts the hooking mode incoming call of transferring; The switching if dial the number then imports 2, and phone adopts the mode of the dialling the number incoming call of transferring.

Press downturning key, MCU shows 2-pulse on liquid crystal, represent that second is to hang up the outside line time before the communicating number of dialling switching is set, the user is according to the time of local fixed network switch sense terminals hooking, be provided with and hang up the outside line time before phone is put through signal code, this time can be made as the 10-990 millisecond.

Press downturning key again, MCU shows 3-number on liquid crystal, represent that the 3rd is be provided with to dial the number of being dialled before the communicating number of switching, receive what number according to local fixed network switch and think to want forward call, phone is set dials the number that sends to the fixed network switch before the communicating number of switching.For example local fixed network switch receives * # two item sign indicating number and thinks that terminal wants forward call, then under this menu, after the input " * # ", press the acknowledgement key preservation and gets final product.

The user is provided with some communicating numbers commonly used of shortcut correspondence then, press a certain shortcut the standby interface user, MCU reads the communicating number of this key correspondence and shows at liquid crystal from memory, user directly input digit revises this communicating number, press acknowledgement key, MCU is deposited into new number in the memory again, and the user can write the title of number correspondence on the memo on shortcut next door with convenient memory.

Set above parameter, when the user needs phone is given to the third party and handles, can turn over the communicating number that key be searched needs switching after receiving calls, get final product by " switching " key then by upper and lower.Switching back is if third party's number is just busy, and the user can directly press " returning " key, with the conversation that turns back to the calling subscriber.The user also can directly transfer by the F1-F12 shortcut of third party's communicating number correspondence.

When the utility model user carries out switch over operation, the concrete course of work of MCU is as follows: MCU was according to detecting power detection circuit input incoming telephone signal when phone was squeezed into, determine that this off-hook of user is for receiving calls, if needing behind user's off-hook that phone is given to the third party handles, the user thumbs the communicating number that need transfer by the upper and lower key that turns over, MCU reads the communicating number of storage in advance and is presented on the LCDs successively from memory, after the user finds the third party's communicating number that will transfer, get final product by " switching " key.MCU just carries out following operation: read the calls transfer mode that sets in advance from memory, if during the hooking switching, MCU detect the user by " switching " key after, the machine circuit of control dislodging earlier disconnects that outside line has been provided with hangs up the outside line time before putting through signal code, give connection to external call then, after treating switch Sending dialled number sound, MCU sends third party's communicating number by the dtmf signal transtation mission circuit to the PSTN circuit, user's on-hook behind the connection third party number, switch is just connected calling subscriber and third party's communicating number.After MCU sends the third party's communicating number that will transfer to the PSTN circuit, if the third party is just busy, the user can directly press " returning " key switches back the conversation with the calling subscriber, MCU detect the user by " returning " key after, control dislodging machine circuit disconnects that outside line has been provided with hangs up the outside line time before putting through signal code, give connection to external call then, switch just recloses subscriber's line and calling subscriber.When the calls transfer mode is transferred for dialling the number, MCU detect the user by " switching " key after, send the number of being dialled before the signal code of putting through that sets in advance by the dtmf signal transtation mission circuit to the PSTN circuit earlier, after treating switch Sending dialled number sound, send third party's communicating number to the PSTN circuit again, user's on-hook behind the connection third party number, switch is just connected calling subscriber and third party's communicating number.After MCU sends the third party's communicating number that will transfer to the PSTN circuit, if the third party is just busy, the user can directly press " returning " key switches back the conversation with the calling subscriber, MCU detect the user by " returning " key after, send the number of being dialled before the signal code of putting through that sets in advance by the dtmf signal transtation mission circuit to the PSTN circuit, switch just recloses subscriber's line and calling subscriber.

The utility model structure rationally, easy to operate, reliable, phone self parameter can be set cooperate the local fixed network switch that uses, for the user provides fast, stablizes, calls transfer function easily, be the desired electrical phone that the many occasions of departments such as enterprises and institutions, factory, hotel, hotel are used.

Claims (2)

1. the telephone set of a switchable incoming call comprises a housing, and numerical key and setting, affirmation function key are arranged on the case panel; Be equipped with in the housing by memory, the circuit main board, liquid crystal display circuit plate and the keyboard scanning circuit plate that come power detection circuit, MCU control circuit, control dislodging machine circuit, dtmf signal transtation mission circuit to form, the MCU control circuit by the pin connected storage, come power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit, liquid crystal display circuit and keyboard scanning circuit; The outer line interface that inserts the PSTN circuit joins with coming power detection circuit, control dislodging machine circuit, dtmf signal transtation mission circuit in housing, it is characterized in that: be provided with " switching " key of a switching incoming call, a switching third party returns calling party when just busy " returning " key in the described keyboard scanning circuit; Described case panel is provided with the button of band " switching ", " returning " printed words.

2. according to the telephone set of the described switchable incoming call of claim 1, it is characterized in that being provided with in the described keyboard scanning circuit shortcut of several key switchings; Described case panel is provided with the button of band " shortcut " printed words.

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