Title :
Design of the Phone Intelligent Dialing Controller
Author :
Guangchun, Fu ; Xiaohong, Kong ; Wei, Zhang ; Yanfeng, Chen ; Du Liufeng
Author_Institution :
Sch. of Electr. & Mech., Henan Inst. of Sci. & Technol., Xinxiang, China
Abstract :
The SCM AT89S51 and DTMF chip MT8870 are the important part. The SCM controls the dialing. If the numbers is the same as the saved numbers in device, the dialing is not controlled and the processing is cut off. The SCM also controls the longest time of the speaking, if the speaking excesses the preliminary value, the telephone is cut off.
Keywords :
intelligent control; microcontrollers; telecommunication control; DTMF chip MT8870; SCM AT89S51; dual tone multifrequency; phone intelligent dialing controller; Couplers; Decoding; Hardware; Power supplies; Presses; Relays; DTMF; MCU; Phone Number Controlling;
Conference_Titel :
Information Science and Management Engineering (ISME), 2010 International Conference of
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-7669-5
Electronic_ISBN :
978-1-4244-7670-1
DOI :
10.1109/ISME.2010.210
