diff --git a/config/config_defaults.go b/config/config_defaults.go
index ff6daf545..5c54707d3 100755
--- a/config/config_defaults.go
+++ b/config/config_defaults.go
@@ -52,6 +52,8 @@ const CGRATES_CFG_JSON = `
 	"digest_equal": ":",									// equal symbol used in case of digests
 	"rsr_separator": ";",									// separator used within RSR fields
 	"max_parallel_conns": 100,								// the maximum number of connection used by the *parallel strategy
+	"concurrent_requests": 0,								// maximum concurrent request allowed ( 0 to disabled )
+	"concurrent_strategy": "*queue",						// strategy in case in case of concurrent requests reached
 },
 
 
diff --git a/config/config_json_test.go b/config/config_json_test.go
index 874198ecb..a673eaca2 100755
--- a/config/config_json_test.go
+++ b/config/config_json_test.go
@@ -62,6 +62,8 @@ func TestDfGeneralJsonCfg(t *testing.T) {
 		Digest_equal:         utils.StringPointer(":"),
 		Rsr_separator:        utils.StringPointer(";"),
 		Max_parallel_conns:   utils.IntPointer(100),
+		Concurrent_requests:  utils.IntPointer(0),
+		Concurrent_strategy:  utils.StringPointer(utils.MetaQueue),
 	}
 	if gCfg, err := dfCgrJSONCfg.GeneralJsonCfg(); err != nil {
 		t.Error(err)
diff --git a/data/conf/cgrates/cgrates.json b/data/conf/cgrates/cgrates.json
index a423ec591..2a9ac6722 100755
--- a/data/conf/cgrates/cgrates.json
+++ b/data/conf/cgrates/cgrates.json
@@ -31,6 +31,8 @@
 // 	"digest_equal": ":",									// equal symbol used in case of digests
 // 	"rsr_separator": ";",									// separator used within RSR fields
 // 	"max_parallel_conns": 100,								// the maximum number of connection used by the *parallel strategy
+// 	"concurrent_requests": 0,								// maximum concurrent request allowed ( 0 to disabled )
+// 	"concurrent_strategy": "*queue",						// strategy in case in case of concurrent requests reached
 // },