Here my app deals with phone call.After googling I found the code for calling a user from my app
NSURL *phoneNumber = [[NSURL alloc] initWithString: @"tel:867-5309"];
[[UIApplication sharedApplication] openURL: phoneNumber];
This is my code.I don’t know what is going on here, while making a call the device is using any protocols or else the code will initiate the normal dialing function of the device..
Whether itz compulsory to add Core Telephony Framework to my app?
Try this
Where pPhoneNumber is your string phone number..