--- a/gen-pdu/settings.c	Sun Aug 27 07:39:14 2023 +0000
+++ b/gen-pdu/settings.c	Sun Aug 27 07:55:13 2023 +0000
@@ -14,6 +14,7 @@
 extern u_char sc_addr[12], user_addr[12];
 extern u_char mr_byte, pid_byte, dcs_byte;
 extern u_char scts_buf[7];
+extern u_char vp_format, vp_buf[7];
 extern int is_septet, scts_is_set;
 extern int flag_rp, flag_sr, flag_lp, flag_mms, flag_rd;
 
@@ -137,6 +138,46 @@
 }
 
 void
+set_vp_abs(argc, argv)
+	char **argv;
+{
+	int rc;
+
+	if (!dir_mo) {
+		fprintf(stderr, ERR_PREFIX "vp-abs is not allowed in MT mode\n",
+			input_lineno);
+		exit(1);
+	}
+	rc = encode_gsm_sms_abstime(argv[1], vp_buf);
+	if (rc < 0) {
+		fprintf(stderr, ERR_PREFIX "invalid timestamp argument\n",
+			input_lineno);
+		exit(1);
+	}
+	vp_format = 0x18;
+}
+
+void
+set_vp_rel(argc, argv)
+	char **argv;
+{
+	char *endp;
+
+	if (!dir_mo) {
+		fprintf(stderr, ERR_PREFIX "vp-rel is not allowed in MT mode\n",
+			input_lineno);
+		exit(1);
+	}
+	vp_buf[0] = strtoul(argv[1], &endp, 0);
+	if (*endp) {
+		fprintf(stderr, ERR_PREFIX "invalid byte value argument\n",
+			input_lineno);
+		exit(1);
+	}
+	vp_format = 0x10;
+}
+
+void
 set_flag_rp()
 {
 	flag_rp = 1;