diff --git a/Resources/linphonerc-factory b/Resources/linphonerc-factory
index d74cdcdbc..419bdfcde 100644
--- a/Resources/linphonerc-factory
+++ b/Resources/linphonerc-factory
@@ -44,7 +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
+aggregate_imdn=1
 
 [sound]
 dtmf_player_amp=0.007