Message composer code (SMS).

//

 MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];
        if (picker == nil) {
            //[self ShowMsg"Message can be composed only in iPhone device."];
            return;
        }
        picker.messageComposeDelegate = self;
        picker.recipients = [NSArray arrayWithObject:telStr];
        [self presentModalViewController:picker animated:YES];
        [picker release];