diff --git a/q931.c b/q931.c
index 8d06310..8524655 100644
--- a/q931.c
+++ b/q931.c
@@ -4802,10 +4802,15 @@ int q931_notify_redirection(struct pri *ctrl, q931_call *call, int notify, const
 
 int q931_notify(struct pri *ctrl, q931_call *c, int channel, int info)
 {
-	if ((ctrl->switchtype == PRI_SWITCH_EUROISDN_T1) || (ctrl->switchtype != PRI_SWITCH_EUROISDN_E1)) {
+	switch (ctrl->switchtype) {
+	case PRI_SWITCH_EUROISDN_T1:
+	case PRI_SWITCH_EUROISDN_E1:
+		break;
+	default:
 		if ((info > 0x2) || (info < 0x00)) {
 			return 0;
 		}
+		break;
 	}
 
 	if (info >= 0) {