10-04-2017, 07:59 PM
To get full information or details of Dual tone Multi Frequency DTMF please have a look on the pages
http://seminarsprojects.net/Thread-Dual-...-signaling
http://seminarsprojects.net/Thread-Dual-...3#pid79283
if you again feel trouble on Dual tone Multi Frequency DTMF please reply in that page and ask specific fields in Dual tone Multi Frequency DTMF