diff --git a/Resources/linphonerc-factory b/Resources/linphonerc-factory
index 99364ce06..d74cdcdbc 100644
--- a/Resources/linphonerc-factory
+++ b/Resources/linphonerc-factory
@@ -44,6 +44,7 @@ tcp_tls_keepalive=30000
 #by default it is set to 30 by liblinphone
 history_max_size=-1
 enable_basic_to_client_group_chat_room_migration=0
+aggregate_imdn=0
 
 [sound]
 dtmf_player_amp=0.007