I am designing a small program in which i have to dial a phone number
detect different events like busy number, no answer, no dial tone etc.
i have dialed number, and played wave file seperately but can not integrate
them. kindly tell me how can i get different events like busy, no answer
and how can i play wave file on answering of B-party.

my mailing address is
omc@guj.pol.com.pk

thanks!