diff --git a/kamailio/defs.cfg b/kamailio/defs.cfg
index 6fe8d3f..2c0d87b 100644
--- a/kamailio/defs.cfg
+++ b/kamailio/defs.cfg
@@ -64,7 +64,7 @@ kazoo.override_media_reply_480 = OVERRIDE_MEDIA_REPLY_480 descr "sip code to sen
 #!trydef KAZOO_LOG_LEVEL L_INFO
 
 #!trydef PV_BUFFER_SIZE 16384
-#!trydef PV_BUFFER_SLOTS 30
+#!trydef PV_BUFFER_SLOTS 45
 #!trydef KZ_MEM_SUMMARY 0
 
 #!trydef KZ_DB_MODULE kazoo