技术领域technical field
本发明涉及固话与移动通信技术，尤其涉及一种智能便捷呼叫终端，用户只需按下一个按键，即可同时通过公共电话网和移动通信网分别向固定电话和手机进行呼叫。The present invention relates to fixed-line and mobile communication technologies, in particular to an intelligent and convenient calling terminal. A user can call a fixed-line phone and a mobile phone through a public telephone network and a mobile communication network at the same time only by pressing a button.
背景技术Background technique
我国目前正处于“十二五规划”期间，城乡居民社会保障和公共安全体系建设依然是我国重点关注的对象。随着人民生活水平的提升，人们更加注重自己生活的质量，更加关注安全服务这一紧紧关乎百姓日常生活的一个方面。随着科学技术水平的日新月异，智能系统及终端将越来越多地应用于人们的生活当中。my country is currently in the "Twelfth Five-Year Plan" period, and the construction of social security and public safety systems for urban and rural residents is still the focus of our country. With the improvement of people's living standards, people pay more attention to the quality of their own lives, and pay more attention to security services, an aspect closely related to people's daily life. With the rapid development of science and technology, intelligent systems and terminals will be more and more used in people's lives.
如今与智能系统及终端有关的产业正如雨后春笋般涌现，总体来说，随着社会信息化的加快，人们的工作生活和信息通讯的关系将日益紧密，信息化社会在改变人们生活方式与工作习惯的同时，也使人们的观念随着科学技术与经济水平的提升而改变，人们对身边环境的要求早已不仅仅是物理空间，更为关注的是一个安全、方便、舒适。因此智能化将逐步进入到人们学习、工作、生活的各个方面，并随着科技的发展日趋完善。有关智能化的相关产业也会一步步完善，并逐步成为产业链中重要的一个环节。Nowadays, industries related to intelligent systems and terminals are springing up like mushrooms. Generally speaking, with the acceleration of social informatization, the relationship between people's work and life and information communication will become increasingly close. The information society is changing people's lifestyles and work habits. At the same time, it also makes people's ideas change with the improvement of science and technology and economic level. People's requirements for the surrounding environment are not only physical space, but also a safe, convenient and comfortable environment. Therefore, intelligence will gradually enter all aspects of people's study, work, and life, and will become more and more perfect with the development of science and technology. Related industries related to intelligence will also be improved step by step, and gradually become an important link in the industrial chain.
有关于呼叫类智能系统，目前主要还是通过内部网络或者专线用于医院、银行等专门领域，直接用于百姓日常生活的智能呼叫终端目前正在发展，但是种类都着眼于本地报警类终端和通过手机进行远程呼救的终端。申请号为200710124370.6的专利公开了一种紧急呼救方法及终端，该发明采取一键式操作模式，通过扬声器进行本地报警并且可以进一步通过手机发送呼救信号。申请号200810204106.8的专利公开了一种具有病人跌倒呼救功能的无线通信终端和呼救方法，该发明在前人基础上，加入加速度传感器实现向手机端呼救及本地报警的功能，也从另一个角度简化了智能呼叫的过程。此外，申请号200910252174.6的专利公开了一种控制移动终端呼叫的方法及装置，加入定时呼叫技术，实现从手机端执行“假通话”的本地呼叫模式转换的功能。With regard to calling intelligent systems, at present, they are mainly used in specialized fields such as hospitals and banks through internal networks or dedicated lines. Intelligent calling terminals that are directly used in people's daily life are currently being developed, but the types are all focused on local alarm terminals and through mobile phones. A terminal for remote calling for help. The patent application No. 200710124370.6 discloses a method and terminal for calling for help in an emergency. The invention adopts a one-button operation mode, performs local alarm through a loudspeaker and can further send a calling for help signal through a mobile phone. The patent application number 200810204106.8 discloses a wireless communication terminal and a calling method with the function of calling for help when a patient falls down. Based on the predecessors, this invention adds an acceleration sensor to realize the function of calling for help and local alarm to the mobile phone, and also simplifies it from another angle. The process of intelligent calling. In addition, the patent application number 200910252174.6 discloses a method and device for controlling calls of mobile terminals, adding timing call technology to realize the function of switching the local call mode of "false call" from the mobile phone.
综上所述，智能便捷呼叫一般只用于手机用户，很少有关于一键式便捷呼叫技术应用于固定电话的报道，即使有，也只是通过按压快捷键调用IP电话号码的固话对固话或固话对手机的呼叫方式。采用这种单一的呼叫方式，常常会因被呼叫方无人接听或占线导致呼叫失败。To sum up, smart and convenient calling is generally only used for mobile phone users. There are few reports about the application of one-button convenient calling technology to fixed phones. How to call a phone or a fixed line to a mobile phone. Using this single calling method often results in call failure due to the called party being unanswered or busy.
发明内容Contents of the invention
针对现有技术中存在的上述问题，本发明提出一种智能便捷呼叫方法及实现便捷呼叫的通信终端，用户在有呼叫需求时，唯一需要做的仅仅是按下一个按键，即可同时通过公共电话网和移动通信网分别向固定电话和手机进行呼叫，大大提高了呼叫成功的概率。Aiming at the above-mentioned problems existing in the prior art, the present invention proposes an intelligent and convenient calling method and a communication terminal for realizing convenient calling. The telephone network and the mobile communication network make calls to fixed telephones and mobile phones respectively, which greatly improves the probability of successful calls.
一种智能便捷呼叫终端，其特征在于能够通过公共电话网和移动通信网同时分别向固定电话和手机进行呼叫，包括：无线发射模块，无线接收模块，控制模块，摘挂机模块，拨号及信号检测模块，语音录放模块，移动通信模块。其中，An intelligent and convenient calling terminal is characterized in that it can make calls to fixed telephones and mobile phones respectively through the public telephone network and mobile communication network, including: a wireless transmitting module, a wireless receiving module, a control module, an on-hook module, dialing and signal detection module, voice recording and playback module, mobile communication module. in,
无线发射模块由红外编码芯片、声表面谐振器和键盘按钮组成。按下按钮，红外编码芯片的某一数据输出管脚输出高电平信号，通过声表面谐振器以无线信号形式发射出去。The wireless transmitting module is composed of an infrared coding chip, a surface acoustic resonator and a keyboard button. When the button is pressed, a certain data output pin of the infrared encoding chip outputs a high-level signal, which is transmitted in the form of a wireless signal through the surface acoustic resonator.
无线接收模块由红外解码芯片组成。用于接收发射信号并进行解码，发送终端运行启动信号至控制模块。The wireless receiving module is composed of an infrared decoding chip. It is used to receive and decode the transmission signal, and send the terminal operation start signal to the control module.
控制模块由单片机、晶振电路、复位电路组成。接收无线接收模块送来的终端运行启动信号，输出控制信号至摘机模块，使摘挂机模块实现摘挂机功能；输出控制字至拨号及信号检测模块将其设置为呼叫处理模式（CP）或者双音多频（DTMF）模式。将预存在单片机ROM中的固定电话号码字符串发送给拨号及信号检测模块，用于生成DTMF信号；输出符合SPI总线格式的命令字至语音录放模块，控制语音录放模块播放语音；通过串口管脚输出AT指令（Attention指令，用于终端设备之间建立连接与通信过程）、手机号码和呼叫信息文本字符串至移动通信模块，控制移动通信模块进行短信发送初始化过程。The control module is composed of single chip microcomputer, crystal oscillator circuit and reset circuit. Receive the terminal operation start signal sent by the wireless receiving module, output the control signal to the off-hook module, so that the off-hook module realizes the off-hook function; output the control word to the dialing and signal detection module to set it as call processing mode (CP) or dual Tone Multi-Frequency (DTMF) mode. Send the fixed telephone number string pre-stored in the ROM of the single-chip microcomputer to the dialing and signal detection module for generating DTMF signals; output command words conforming to the SPI bus format to the voice recording and playback module, and control the voice recording and playback module to play voice; through the serial port pin Output AT command (Attention command, used to establish connection and communication process between terminal devices), mobile phone number and call information text string to the mobile communication module, and control the mobile communication module to perform the initialization process of sending short messages.
摘挂机模块是一块局部模拟电路，由三极管、钳位二极管、继电器等组成。在控制模块送来的摘机控制信号作用下实现模拟摘挂机功能。The off-hook module is a partial analog circuit, which is composed of triode, clamping diode, relay and so on. Under the action of the off-hook control signal sent by the control module, the simulated off-hook function is realized.
拨号及信号检测模块由双音多频芯片、载频电路、滤波电路、音频放大电路组成。在控制模块送来的控制字的控制下切换CP和DTMF两种工作模式。在CP模式下，接收电话双绞线上传送进来的信号音（具有一定频率的方波）；在DTMF模式下，将从单片机接收的固定电话号码字符串转换成DTMF信号，并将生成的DTMF信号发送至电话双绞线。The dialing and signal detection module is composed of a dual-tone multi-frequency chip, a carrier frequency circuit, a filter circuit, and an audio amplifier circuit. Under the control of the control word sent by the control module, the two working modes of CP and DTMF are switched. In CP mode, receive the signal tone (square wave with a certain frequency) transmitted on the telephone twisted pair; in DTMF mode, convert the fixed telephone number string received from the microcontroller into a DTMF signal, and convert the generated DTMF The signal is sent to the telephone twisted pair.
语音录放模块由语音芯片组成。在控制模块送来命令字后进行播放模式选择，之后将预存在语音芯片ROM中的呼叫语音直接发送到电话双绞线上。The voice recording and playback module is composed of voice chips. After the command word is sent by the control module, the playback mode is selected, and then the call voice pre-stored in the ROM of the voice chip is directly sent to the twisted pair of the telephone.
移动通信模块由GSM模块和SIM卡组成。在控制模块送来AT指令后，进行模块初始化，设置为短信发送模式，同时读取控制模块发送来的手机号码字符串，之后以SIM卡提供的通信身份，向对应的手机发送呼叫短信文本字符串。The mobile communication module is composed of GSM module and SIM card. After the control module sends the AT command, initialize the module, set it to the SMS sending mode, and read the mobile phone number string sent by the control module at the same time, and then use the communication identity provided by the SIM card to send the call SMS text character to the corresponding mobile phone string.
无线发射模块安装在遥控器上，其它六个模块可以进行集成封装安装在固定电话机内，在电话双绞线可以分线的情况下，也可封装成独立的终端模块。The wireless transmitter module is installed on the remote controller, and the other six modules can be integrated and packaged in the fixed telephone set, and can also be packaged into an independent terminal module when the twisted pair of the telephone can be divided.
摘挂机模块通过电路直接与电话双绞线相连接，按照电话信令系统中的电气指标，通过改变电话线的电压来实现摘机和挂机状态，不需要操控实际的电话机。The off-hook module is directly connected to the telephone twisted pair through the circuit. According to the electrical index in the telephone signaling system, the off-hook and on-hook states are realized by changing the voltage of the telephone line, without the need to manipulate the actual telephone.
控制模块在执行拨号、语音放送等实际操作的间隙，均将拨号及信号检测模块设置为呼叫处理模式，实时检测电话线路上信号的频率，判断线路状态。When the control module is performing actual operations such as dialing and voice broadcasting, the dialing and signal detection module is set to call processing mode to detect the frequency of the signal on the telephone line in real time and judge the state of the line.
移动通信模块在发送短信前，要预先与一块实际SIM卡进行绑定，以实现一个手机用户正常通信的状态。Before sending short messages, the mobile communication module should be bound with an actual SIM card in advance, so as to realize the normal communication status of a mobile phone user.
不管被呼叫固话是否摘机，控制模块都输出控制信号至移动通信模块，使其向一台手机发送呼叫短信。Regardless of whether the called fixed phone is off-hook, the control module outputs a control signal to the mobile communication module to make it send a calling message to a mobile phone.
键盘按钮可以设置多个按键，每个按键对应一组固话和手机，实现对多组固话和手机的呼叫。The keyboard button can be set with multiple buttons, and each button corresponds to a group of fixed phones and mobile phones, so as to realize calls to multiple groups of fixed phones and mobile phones.
与现有技术相比，本发明具有以下优点：Compared with the prior art, the present invention has the following advantages:
（1）本发明充分利用公共电话网和移动通信网的优势，通过两种不同的通信网的结合，在一定程度上解决了由于对方无人接听或占线引起呼叫失败的问题。(1) The present invention makes full use of the advantages of the public telephone network and the mobile communication network, and through the combination of the two different communication networks, to a certain extent solves the problem of call failure caused by the other party being unanswered or busy.
（2）除了无线发射模块，其余所有模块均可以集成或者封装成为一个整体部件，体积小，重量轻，有利于通信终端的小型化。(2) Except for the wireless transmission module, all other modules can be integrated or packaged into an integral part, which is small in size and light in weight, which is conducive to the miniaturization of communication terminals.
（3）不论是摘挂机、拨号及信号检测还是语音发送，所有操作均是通过电话双绞线自动完成，不需要操控实际电话机，实现了真正意义的一键式呼叫；通过GSM模块上的外界引脚与SIM卡直接电路连接即可实现手机通信基本功能，不需要实际操控手机。(3) No matter whether it is on-hook, dialing, signal detection or voice transmission, all operations are automatically completed through the telephone twisted pair, without the need to manipulate the actual telephone, and realize the real one-button call; through the GSM module The basic functions of mobile phone communication can be realized by directly connecting the external pins with the SIM card without actually manipulating the mobile phone.
附图说明Description of drawings
图1为本发明所述便捷呼叫终端的总体结构图；Fig. 1 is the overall structural diagram of the convenient calling terminal of the present invention;
图2为本发明无线收发部分原理图；Fig. 2 is a schematic diagram of the wireless transceiver part of the present invention;
图3为本发明实施例摘挂机模块电路图；Fig. 3 is the circuit diagram of the hook-and-hook module according to the embodiment of the present invention;
图4为本发明实施例拨号及信号检测模块电路图；Fig. 4 is the circuit diagram of the dialing and signal detection module of the embodiment of the present invention;
图5为本发明实施例语音录放模块电路图；Fig. 5 is the circuit diagram of voice recording and playback module of the embodiment of the present invention;
图6为本发明移动通信模块原理图。Fig. 6 is a schematic diagram of the mobile communication module of the present invention.
具体实施方式detailed description
下面结合附图和实施例对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
智能便捷呼叫终端的总体结构图如图1所示，包括：无线发射模块，无线接收模块，控制模块，摘挂机模块，拨号及信号检测模块，语音录放模块，移动通信模块。无线发射模块安装在呼叫方的遥控器内，其它六个模块均安装在呼叫方的固定电话内或封装成为可与电话线相连接的独立模块。The overall structure of the intelligent and convenient calling terminal is shown in Figure 1, including: wireless transmitting module, wireless receiving module, control module, on-hook module, dialing and signal detection module, voice recording and playback module, mobile communication module. The wireless transmitting module is installed in the remote controller of the calling party, and the other six modules are all installed in the fixed telephone of the calling party or packaged as an independent module that can be connected with the telephone line.
无线发射模块和无线接收模块的组成如图2所示。The composition of the wireless transmitting module and the wireless receiving module is shown in Figure 2.
无线发射模块由SC2262红外编码芯片、315MHz声表面谐振器、键盘按钮组成。键盘按键与SC2262的输入管脚相连，315MHZ声表面谐振器与SC2262输出管脚相连。设置4个按键，分别提供对4组固话和手机的呼叫。根据用户具体需求可以通过不同按键的“一键式操作”，选择本次呼叫对象具体是面向哪一组。The wireless transmitting module is composed of SC2262 infrared coding chip, 315MHz surface acoustic resonator, and keyboard buttons. The keyboard keys are connected to the input pins of SC2262, and the 315MHZ surface acoustic resonator is connected to the output pins of SC2262. Set 4 buttons to provide calls to 4 groups of landlines and mobile phones respectively. According to the specific needs of the user, the "one-button operation" of different buttons can be used to select which group the call object is for.
无线接收模块主要由SC2272红外解码芯片和接收天线组成。SC2272的数据输出管脚与单片机的I/O管脚相连。The wireless receiving module is mainly composed of SC2272 infrared decoding chip and receiving antenna. The data output pin of SC2272 is connected with the I/O pin of the one-chip computer.
控制模块主要由STC89C52单片机组成，I/O管脚与SC2272的数据输出端和摘挂机模块、语音录放模块、拨号及信号检测模块的输入控制端相连，并与移动通信模块进行串行通讯。The control module is mainly composed of STC89C52 single-chip microcomputer. The I/O pins are connected with the data output terminal of SC2272 and the input control terminal of the hook module, voice recording and playback module, dialing and signal detection module, and communicate with the mobile communication module serially.
摘挂机模块是一个局部模拟电路，如图3所示，主要通过PNP9012三极管、4148开关钳位二极管和继电器组成。单片机的某一I/O管脚与ZJKZ端电路相连；ZJKZ端通过1K电阻作为负载电阻与PNP9012三极管的基极相连，发射机接地，集电极与4148钳位二极管的正端相连，同时与继电器5号端子相连；继电器1号端子和4号端子分别于电话双绞线中的两根导线相连。The off-hook module is a partial analog circuit, as shown in Figure 3, mainly composed of PNP9012 transistor, 4148 switch clamp diode and relay. An I/O pin of the microcontroller is connected to the ZJKZ terminal circuit; the ZJKZ terminal is connected to the base of the PNP9012 transistor through a 1K resistor as a load resistor, the transmitter is grounded, the collector is connected to the positive terminal of the 4148 clamp diode, and at the same time connected to the relay Terminal 5 is connected; Terminal 1 and Terminal 4 of the relay are respectively connected to two wires in the telephone twisted pair.
拨号及信号检测模块如图4所示，主要由MT8880CE双音多频芯片组成。MT8880CE芯片D0～D3、RW、RS0、IRQ端口直接与单片机的I/O管脚电路相连。5V电源通过经典电路为MT8880CE供电，3.58MHz的晶振为MT8880CE芯片提供工作时钟。TONE端口通过RC并联电路对信号进行杂波滤除，然后级联一个RC串联电路滤除电路中无用的直流信号，在与NPN三极管8050的基极电路相连。三极管8050的基极同时通过两个2pF的滤波电容接地，发射极通过120Ω升压电阻接地。三极管8050的集电极直接与音频变压器EI14电路相连以便隔直通交发送DTMF信号。此外，EI14音频变压器同时通过RC串联滤波电路与MT8880CE的IN-端口相连以便接收电话双绞线上的音频信号。The dialing and signal detection module is shown in Figure 4, which is mainly composed of MT8880CE dual-tone multi-frequency chip. MT8880CE chip D0 ~ D3, RW, RS0, IRQ ports are directly connected with the I/O pin circuit of the microcontroller. The 5V power supply supplies power to the MT8880CE through a classic circuit, and the 3.58MHz crystal oscillator provides the working clock for the MT8880CE chip. The TONE port performs clutter filtering on the signal through an RC parallel circuit, and then cascades an RC series circuit to filter out the useless DC signal in the circuit, and connects it to the base circuit of the NPN transistor 8050. The base of the triode 8050 is grounded through two 2pF filter capacitors at the same time, and the emitter is grounded through a 120Ω boost resistor. The collector of the triode 8050 is directly connected with the audio transformer EI14 circuit so as to transmit DTMF signals through direct communication. In addition, the EI14 audio transformer is also connected to the IN- port of MT8880CE through an RC series filter circuit to receive audio signals on the telephone twisted pair.
语音录放模块如图5所示，主要由ISD4004语音芯片组成。ISD4004通过升压电阻为需要电平信号的管脚提供电平、通过滤波电容为相应的管脚提供稳定的参考电压。ANDOUT管脚为语音播放端口，将此端口通过导线引出，直接通过EI音频变压器与电话双绞线中高电位的一条相连，在拨号与信号音检测过程完毕，检测到对方摘机后，自动通过ANDOUT管脚将存储在ISD4004的ROM中的呼叫语音向电话线送出。The voice recording and playback module is shown in Figure 5, mainly composed of ISD4004 voice chip. The ISD4004 provides the level for the pins that require level signals through the boost resistor, and provides a stable reference voltage for the corresponding pins through the filter capacitor. The ANDOUT pin is a voice playback port. Lead this port out through a wire, and directly connect it to one of the high-potential telephone twisted-pair wires through the EI audio transformer. The pin sends the call voice stored in the ROM of the ISD4004 to the telephone line.
移动通信模块如图6所示，由TC35I型GSM芯片与SIM卡组成。分别通过串口的RXD和TXD与单片机通讯，接收和发送AT指令、移动电话号码的呼叫字符串以及呼叫短信文本字符串。通过置入确定用户移动通信过程身份的SIM卡，可模拟手机通信行为与另一个手机进行短信发送功能。As shown in Figure 6, the mobile communication module consists of a TC35I GSM chip and a SIM card. Communicate with the single-chip microcomputer through RXD and TXD of the serial port, receive and send AT commands, call strings of mobile phone numbers, and text strings of call text messages. By inserting the SIM card that determines the identity of the user during the mobile communication process, the communication behavior of the mobile phone can be simulated to send short messages with another mobile phone.
完成一键呼叫的操作流程如下：The operation process of completing one-key calling is as follows:
按下指定按键，无线发射模块的SC2262红外编码芯片的某一数据输出管脚输出高电平信号，通过315MHz声表面谐振器以无线信号形式发射出去。无线接收模块的SC2272芯片接收发射信号，解码从数据管脚发送一个低电平信号给控制模块的单片机。单片机随即送出低电平信号给摘挂机模块，使摘挂机的模拟电路三极管导通，从而通过导通三极管的高电平使继电器吸合，以致将电话双绞线两端电压骤降，进入摘机状态。单片机发送控制字将拨号及信号检测模块的MT8880CE设置为呼叫处理模式进行电话双绞线上音频信号的读取，通过判断程序来确定电话线路是否畅通。一旦判断电话线路畅通，单片机发送控制字将MT8880CE设置为双音多频模式，之后将存在单片机ROM中的电话号码转换成DTMF信号，串行发送到电话双绞线上，实现拨号功能。与此同时，单片机通过串行口将同样存储在单片机ROM中的AT指令、手机号码和呼叫短信内容按顺序下发给移动通信模块的GSM，GSM将号码通过无线协议发送，实现短信发送功能。单片机再将MT8880CE设置为呼叫处理模式，实时读取电话双绞线上的音频信号。当判断到对方摘机后，单片机以SPI总线形式给语音录放模块的ISD4004发送播放命令字，ISD4004将事先录入的呼叫语音传送到电话双绞线，实现模拟呼叫功能。当判断对方接听完毕已经挂机后，单片机将之前送入摘挂机模块的低电平置高，使三极管停止工作，继而集电极变为低电平，继电器断开，电话双绞线回复断开状态，实现挂机。Press the specified button, a data output pin of the SC2262 infrared encoding chip of the wireless transmitter module outputs a high-level signal, and transmits it in the form of a wireless signal through the 315MHz surface acoustic resonator. The SC2272 chip of the wireless receiving module receives the transmission signal, decodes and sends a low-level signal from the data pin to the microcontroller of the control module. The single-chip microcomputer then sends a low-level signal to the off-hook module to turn on the triode of the analog circuit of the off-hook hook, so that the high level of the triode is turned on to make the relay close, so that the voltage at both ends of the twisted pair of the telephone drops sharply and enters the off-hook mode. machine status. The single-chip microcomputer sends the control word, sets the MT8880CE of the dialing and signal detection module to the call processing mode to read the audio signal on the twisted pair telephone line, and determines whether the telephone line is unblocked through the judgment program. Once it is judged that the telephone line is unblocked, the MCU sends a control word to set the MT8880CE to dual-tone multi-frequency mode, and then converts the telephone number stored in the ROM of the MCU into a DTMF signal, which is serially sent to the twisted-pair telephone line to realize the dialing function. At the same time, the single-chip microcomputer sends the AT command, mobile phone number and call text message content stored in the single-chip microcomputer ROM to the GSM of the mobile communication module in sequence through the serial port, and the GSM sends the number through the wireless protocol to realize the text message sending function. The single-chip microcomputer sets MT8880CE to call processing mode, and reads the audio signal on the telephone twisted-pair line in real time. When it is judged that the other party is off-hook, the single-chip microcomputer sends a playback command word to the ISD4004 of the voice recording and playback module in the form of SPI bus, and the ISD4004 transmits the call voice entered in advance to the twisted pair of the telephone to realize the analog call function. When it is judged that the other party has finished answering and has hung up, the single-chip microcomputer will set the low level sent to the off-hook module to high, so that the triode stops working, and then the collector becomes low level, the relay is disconnected, and the twisted pair of the telephone returns to the disconnected state , to implement on-hook.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693310.1ACN103701973B (en) | 2013-12-17 | 2013-12-17 | A kind of convenient calling terminal of intelligence |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693310.1ACN103701973B (en) | 2013-12-17 | 2013-12-17 | A kind of convenient calling terminal of intelligence |
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| CN103701973A CN103701973A (en) | 2014-04-02 |
| CN103701973Btrue CN103701973B (en) | 2017-05-31 |
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| CN201310693310.1AExpired - Fee RelatedCN103701973B (en) | 2013-12-17 | 2013-12-17 | A kind of convenient calling terminal of intelligence |
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| DE102005041364A1 (en)* | 2005-08-31 | 2007-03-01 | Siemens Ag | Functional and menu keys allocation method for use in communication system, involves assigning keys at communicating transmitting device with associated key allocation based on selection of displayed information |
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