diff --git a/include/re_sipreg.h b/include/re_sipreg.h
index c99db7db3..4e8d11668 100644
--- a/include/re_sipreg.h
+++ b/include/re_sipreg.h
@@ -14,6 +14,7 @@ int sipreg_register(struct sipreg **regp, struct sip *sip, const char *reg_uri,
 		    int regid, sip_auth_h *authh, void *aarg, bool aref,
 		    sip_resp_h *resph, void *arg,
 		    const char *params, const char *fmt, ...);
+void sipreg_unregister(struct sipreg *reg);
 int sipreg_alloc(struct sipreg **regp, struct sip *sip, const char *reg_uri,
 		    const char *to_uri, const char *from_name,
 		    const char *from_uri, uint32_t expires,
diff --git a/src/sipreg/reg.c b/src/sipreg/reg.c
index f787624fa..35f83d645 100644
--- a/src/sipreg/reg.c
+++ b/src/sipreg/reg.c
@@ -246,14 +246,17 @@ static void response_handler(int err, const struct sip_msg *msg, void *arg)
 		if (msg && msg->scode >= 400 && msg->scode < 500)
 			reg->fbregint = 0;
 
-		if (!reg->terminated && reg->fbregint) {
-			tmr_start(&reg->tmr, reg->fbregint * 1000, tmr_handler,
-					reg);
-			reg->resph(err, msg, reg->arg);
-		}
-		else if (reg->terminated) {
+		if (reg->terminated) {
 			mem_deref(reg);
+			return;
 		}
+
+		if (reg->fbregint)
+			tmr_start(&reg->tmr, reg->fbregint * 1000,
+					  tmr_handler, reg);
+
+		reg->resph(err, msg, reg->arg);
+
 	}
 	else if (reg->terminated) {
 		if (!reg->registered || request(reg, true))
@@ -450,6 +453,22 @@ int sipreg_register(struct sipreg **regp, struct sip *sip, const char *reg_uri,
 }
 
 
+/**
+ * Unregisters SIP Registration client
+ *
+ * @param reg   SIP Registration client
+ */
+void sipreg_unregister(struct sipreg *reg)
+{
+	if (!reg)
+		return;
+
+	reg->expires = 0;
+
+	(void)sipreg_send(reg);
+}
+
+
 /**
  * Allocate a SIP Registration client
  *