A display of a calling telephone number display, which is suitable for telephone communication, in which both parties display the telephone number of the opposite party on the side, and can also satisfy an important department for tracing the malicious telephone, and perform one-way display. It performs 8421 code encoding on the known telephone number by bit. After encoding, and adding the synchronization signal, it is modulated by the keyed ASK modulation method, and then the signal is sent to the other party, the other party receives the signal, and is demodulated and restored to the symbol. After the signal is deducted, the synchronization signal is deducted, and after the two parties are synchronized, the telephone number of the other party is displayed by bit decoding. The device has the characteristics of simple installation, debugging, and high reliability.


BizQQWPA.addCustom({aty: '0', a: '0', nameAccount: 4008873118, selector: 'hqewqq'}); Var hqconfig = { url: "/ajax/adapter", funAssemblyName: "", paramAssemblyName: "", isTip: !1, isUserState: !0, isBackUrl: !1, source: "", isHeaderFixed: false }