diff --git a/kamailio/presence-role.cfg b/kamailio/presence-role.cfg
index e6a6919..81674ff 100644
--- a/kamailio/presence-role.cfg
+++ b/kamailio/presence-role.cfg
@@ -7,7 +7,7 @@
 
 #!trydef KZ_PRESENCE_CSEQ_OFFSET 2
 
-#!trydef KZ_PRESENCE_MAX_CALL_PER_PRESENTITY 10
+#!trydef KZ_PRESENCE_MAX_CALL_PER_PRESENTITY 20
 
 modparam("htable", "htable", "p=>size=32;autoexpire=3600;")
 modparam("htable", "htable", "first=>size=32;autoexpire=3600;initval =0;updateexpire=1;")