iOS: Call phone direct.

gistfile1.m

NSString *phNo = @"+919876543210";
NSURL *phoneUrl = [NSURL URLWithString:[NSString  stringWithFormat:@"telprompt:%@",phNo]]; // ok tel:

if ([[UIApplication sharedApplication] canOpenURL:phoneUrl]) {
  [[UIApplication sharedApplication] openURL:phoneUrl];
} else {
  calert = [[UIAlertView alloc]initWithTitle:@"Alert" message:@"Call facility is not available!!!" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil, nil];
  [calert show];
}

// The phone number must not contain spaces or square brackets, although it can contain dashes and a leading + sign indicating that the international call prefix should be prepended.