diff --git a/src/conference/session/call-session.cpp b/src/conference/session/call-session.cpp
index 2b6d0da8d..a11a4ed1d 100644
--- a/src/conference/session/call-session.cpp
+++ b/src/conference/session/call-session.cpp
@@ -821,8 +821,9 @@ void CallSessionPrivate::repairIfBroken () {
 		case CallSession::State::Pausing:
 			if (op->dialog_request_pending()) {
 				// Need to cancel first re-INVITE as described in section 5.5 of RFC 6141
-				op->cancel_invite();
-				reinviteOnCancelResponseRequested = true;
+				if (op->cancel_invite() == 0){
+					reinviteOnCancelResponseRequested = true;
+				}
 			}
 			break;
 		case CallSession::State::StreamsRunning:
@@ -840,8 +841,9 @@ void CallSessionPrivate::repairIfBroken () {
 			break;
 		case CallSession::State::OutgoingInit:
 		case CallSession::State::OutgoingProgress:
-			op->cancel_invite();
-			reinviteOnCancelResponseRequested = true;
+			if (op->cancel_invite() == 0){
+				reinviteOnCancelResponseRequested = true;
+			}
 			break;
 		case CallSession::State::OutgoingEarlyMedia:
 		case CallSession::State::OutgoingRinging:
diff --git a/src/sal/call-op.cpp b/src/sal/call-op.cpp
index a73c021ea..936eb983b 100644
--- a/src/sal/call-op.cpp
+++ b/src/sal/call-op.cpp
@@ -1120,9 +1120,15 @@ int SalCallOp::update(const char *subject, bool_t no_user_consent) {
 	return -1;
 }
 
-void SalCallOp::cancel_invite_with_info(const SalErrorInfo *info) {
+int SalCallOp::cancel_invite_with_info(const SalErrorInfo *info) {
 	belle_sip_request_t* cancel;
 	ms_message("Cancelling INVITE request from [%s] to [%s] ",get_from(), get_to());
+	
+	if (this->pending_client_trans == NULL){
+		ms_warning("There is no transaction to cancel.");
+		return -1;
+	}
+	
 	cancel = belle_sip_client_transaction_create_cancel(this->pending_client_trans);
 	if (cancel){
 		if (info != NULL){
@@ -1130,6 +1136,7 @@ void SalCallOp::cancel_invite_with_info(const SalErrorInfo *info) {
 			belle_sip_message_add_header(BELLE_SIP_MESSAGE(cancel),BELLE_SIP_HEADER(reason));
 		}
 		send_request(cancel);
+		return 0;
 	}else if (this->dialog){
 		belle_sip_dialog_state_t state = belle_sip_dialog_get_state(this->dialog);;
 		/*case where the response received is invalid (could not establish a dialog), but the transaction is not cancellable
@@ -1145,6 +1152,7 @@ void SalCallOp::cancel_invite_with_info(const SalErrorInfo *info) {
 			break;
 		}
 	}
+	return -1;
 }
 
 SalMediaDescription *SalCallOp::get_final_media_description() {
diff --git a/src/sal/call-op.h b/src/sal/call-op.h
index 414a808b6..fea958e6d 100644
--- a/src/sal/call-op.h
+++ b/src/sal/call-op.h
@@ -45,8 +45,8 @@ public:
 	int decline(SalReason reason, const char *redirection /*optional*/);
 	int decline_with_error_info(const SalErrorInfo *info, const SalAddress *redirectionAddr /*optional*/);
 	int update(const char *subject, bool_t no_user_consent);
-	void cancel_invite() {cancel_invite_with_info(NULL);}
-	void cancel_invite_with_info(const SalErrorInfo *info);
+	int cancel_invite() { return cancel_invite_with_info(NULL);}
+	int cancel_invite_with_info(const SalErrorInfo *info);
 	int refer(const char *refer_to_);
 	int refer_with_replaces(SalCallOp *other_call_op);
 	int set_referer(SalCallOp *refered_call);