DocumentCode
2122499
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
Volume
1
fYear
2010
fDate
7-8 Aug. 2010
Firstpage
68
Lastpage
70
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;
fLanguage
English
Publisher
ieee
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
Type
conf
DOI
10.1109/ISME.2010.210
Filename
5574015
Link To Document