diff --git a/src/include/switch.h b/src/include/switch.h
index 9dabea2a9a..47d6ab3e22 100644
--- a/src/include/switch.h
+++ b/src/include/switch.h
@@ -101,7 +101,6 @@ END_EXTERN_C
  *	Additionally, the experimental external modules make use of several external modules:
  *
  *	mod_Exosip:
- *		- JRTPlib (http://research.edm.luc.ac.be/jori/jrtplib/jrtplib.html)
  *		- eXoSIP (http://savannah.nongnu.org/projects/exosip/)
  *
  *	mod_iaxchan:
diff --git a/src/mod/endpoints/mod_exosip/mod_exosip.c b/src/mod/endpoints/mod_exosip/mod_exosip.c
index a5c7de6028..44901048bf 100644
--- a/src/mod/endpoints/mod_exosip/mod_exosip.c
+++ b/src/mod/endpoints/mod_exosip/mod_exosip.c
@@ -1575,8 +1575,11 @@ static void handle_message_new(eXosip_event_t *je)
 				}
 
 
-				expires = get_header_value(je, "expires");
-				exptime = time(NULL) + atoi(expires) + 20;
+				if ((expires = get_header_value(je, "expires"))) {
+					exptime = time(NULL) + atoi(expires) + 20;
+				} else {
+					exptime = time(NULL) + 3600;
+				}
 
 				
 				if (!find_reg_url(globals.db, je->request->from->url->username, sql, sizeof(sql))) {