diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index cc85eb679d7f30509ab5b69f685a640331887203..40de59c1847d7cdbf2d53c7ab6ca2f9b08c21e92 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -1395,6 +1395,9 @@ static void sip_config_read(LinphoneCore *lc) {
 	/*this is to filter out unsupported encryption schemes*/
 	linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 
+	/*enable the reconnection to the primary server when it is up again asap*/
+	lc->sal->enable_reconnect_to_primary_asap(!!lp_config_get_int(lc->config,"sip","reconnect_to_primary_asap",0));
+
 	/*for tuning or test*/
 	lc->sip_conf.sdp_200_ack = !!lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 	lc->sip_conf.register_only_when_network_is_up=
diff --git a/src/sal/sal.h b/src/sal/sal.h
index bf9322d4842235f335ba56a405af286cfed2e2e9..3e48bc48127409960dc7cfbb0f050cfa9db72c38 100644
--- a/src/sal/sal.h
+++ b/src/sal/sal.h
@@ -171,6 +171,7 @@ public:
 	void enable_test_features(bool_t enabled) {this->_enable_test_features=enabled;}
 	void use_no_initial_route(bool_t enabled) {this->no_initial_route=enabled;}
 	void enable_unconditional_answer(int value) {belle_sip_provider_enable_unconditional_answer(this->prov,value);}
+	void enable_reconnect_to_primary_asap(bool_t enabled) {belle_sip_stack_enable_reconnect_to_primary_asap(this->stack,enabled);}
 
 	bctbx_list_t *get_pending_auths() const {return bctbx_list_copy(this->pending_auths);}