Implement sending SMS and send one on network registration
diff --git a/tests/sms/sms_test.c b/tests/sms/sms_test.c
index ebecb56..be166e4 100644
--- a/tests/sms/sms_test.c
+++ b/tests/sms/sms_test.c
@@ -85,4 +85,6 @@
 		gsm0411_rcv_sms(msg);
 		msgb_free(msg);
 	}
+
+	gsm0411_send_sms(0, 0);
 }