diff --git a/res/raw-sw600dp/linphonerc_default b/res/raw-sw600dp/linphonerc_default
index 94d16f8b7..a939bf525 100644
--- a/res/raw-sw600dp/linphonerc_default
+++ b/res/raw-sw600dp/linphonerc_default
@@ -4,7 +4,7 @@ upload_bw=512
 firewall_policy=0
 
 [sip]
-contact="Linphone Android" sip:linphone.android@unknown-host
+contact="Linphone Android" <sip:linphone.android@unknown-host>
 use_info=0
 use_ipv6=0
 keepalive_period=30000
diff --git a/res/raw/linphonerc_default b/res/raw/linphonerc_default
index 79c0ce353..82de38a82 100644
--- a/res/raw/linphonerc_default
+++ b/res/raw/linphonerc_default
@@ -3,7 +3,7 @@ download_bw=380
 upload_bw=380
 
 [sip]
-contact="Linphone Android" sip:linphone.android@unknown-host
+contact="Linphone Android" <sip:linphone.android@unknown-host>
 use_info=0
 use_ipv6=0
 keepalive_period=30000