diff -urN opensips-2.1.2.orig/modules/msilo/msilo.c opensips-2.1.2.mod/modules/msilo/msilo.c
--- opensips-2.1.2.orig/modules/msilo/msilo.c	2016-01-17 17:48:37.000000000 +0000
+++ opensips-2.1.2.mod/modules/msilo/msilo.c	2016-03-21 05:40:09.000000000 +0000
@@ -129,6 +129,7 @@
 char*  ms_contact = NULL; /*"Contact: <sip:registrar@example.org>\r\n";*/
 char*  ms_content_type = NULL; /*"Content-Type: text/plain\r\n";*/
 char*  ms_offline_message = NULL; /*"<em>I'm offline.</em>"*/
+char*  ms_mongodb_sub = "//mongodb"; /*String to search for*/
 void**  ms_from_sp = NULL;
 void**  ms_contact_sp = NULL;
 void**  ms_content_type_sp = NULL;
@@ -141,6 +142,7 @@
 int  ms_use_contact = 1;
 int  ms_add_date = 1;
 int  ms_max_messages = 0;
+int  ms_use_mongodb = 0; 
 
 static str ms_snd_time_avp_param = {NULL, 0};
 int ms_snd_time_avp_name = -1;
@@ -338,6 +340,10 @@
 		msilo_dbf.close(db_con);
 	db_con = NULL;
 
+	if (strstr(ms_db_url.s,ms_mongodb_sub) != NULL) {
+		ms_use_mongodb = 1;
+	}
+
 	/* load the TM API */
 	if (load_tm_api(&tmb)!=0) {
 		LM_ERR("can't load TM API\n");
@@ -477,8 +483,8 @@
 	struct to_body *pto, *pfrom;
 	struct sip_uri puri;
 	str duri, owner_s;
-	db_key_t db_keys[NR_KEYS-1];
-	db_val_t db_vals[NR_KEYS-1];
+	db_key_t db_keys[NR_KEYS-(ms_use_mongodb?0:1)];
+	db_val_t db_vals[NR_KEYS-(ms_use_mongodb?0:1)];
 	db_key_t db_cols[1];
 	db_res_t* res = NULL;
 	int nr_keys = 0, val, lexpire;
@@ -683,6 +689,16 @@
 	db_vals[nr_keys].val.int_val = val;
 	nr_keys++;
 
+	/* msgid*/
+	if (ms_use_mongodb) {
+		srand((unsigned) val);
+		db_keys[nr_keys] = &sc_mid;
+		db_vals[nr_keys].type = DB_INT;
+		db_vals[nr_keys].nul = 0;
+		db_vals[nr_keys].val.int_val = val + (rand() % 50);
+		nr_keys++;
+	}
+
 	/* add sending time */
 	db_keys[nr_keys] = &sc_snd_time;
 	db_vals[nr_keys].type = DB_INT;