diff --git a/.tx/config b/.tx/config
new file mode 100644
index 000000000..7c4b5d562
--- /dev/null
+++ b/.tx/config
@@ -0,0 +1,195 @@
+[main]
+host = https://www.transifex.com
+lang_map = fr_CA:fr-rCA,pt_BR:pt-rBR,zh_CN:zh-rCN,zh_HK:zh-rHK,zh_TW:zh-rTW,da_DK:da-rDK,sv_SE:sv-rSE,kn_IN:kn-rIN,nl_NL:nl-rNL,en_NL:en-rNL
+minimum_perc = 1
+
+[linphone-ios.localizablestrings]
+file_filter = Resources/<lang>.lproj/Localizable.strings
+source_file = Resources/en.lproj/Localizable.strings
+source_lang = en
+
+[linphone-ios.aboutviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/AboutViewController.strings
+source_file = Classes/Base.lproj/AboutViewController.strings
+source_lang = en
+
+
+[linphone-ios.chatroomviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ChatRoomViewController.strings
+source_file = Classes/Base.lproj/ChatRoomViewController.strings
+source_lang = en
+
+
+[linphone-ios.chatviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ChatViewController.strings
+source_file = Classes/Base.lproj/ChatViewController.strings
+source_lang = en
+
+
+[linphone-ios.contactdetailslabelviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ContactDetailsLabelViewController.strings
+source_file = Classes/Base.lproj/ContactDetailsLabelViewController.strings
+source_lang = en
+
+
+[linphone-ios.contactdetailsviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ContactDetailsViewController.strings
+source_file = Classes/Base.lproj/ContactDetailsViewController.strings
+source_lang = en
+
+
+[linphone-ios.contactsviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ContactsViewController.strings
+source_file = Classes/Base.lproj/ContactsViewController.strings
+source_lang = en
+
+
+[linphone-ios.dialerviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/DialerViewController.strings
+source_file = Classes/Base.lproj/DialerViewController.strings
+source_lang = en
+
+
+[linphone-ios.dialerviewcontrolleripadstrings]
+file_filter = Classes/<lang>.lproj/DialerViewController~ipad.strings
+source_file = Classes/Base.lproj/DialerViewController~ipad.strings
+source_lang = en
+
+
+[linphone-ios.firstloginviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/FirstLoginViewController.strings
+source_file = Classes/Base.lproj/FirstLoginViewController.strings
+source_lang = en
+
+
+[linphone-ios.historydetailsviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/HistoryDetailsViewController.strings
+source_file = Classes/Base.lproj/HistoryDetailsViewController.strings
+source_lang = en
+
+
+[linphone-ios.historyviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/HistoryViewController.strings
+source_file = Classes/Base.lproj/HistoryViewController.strings
+source_lang = en
+
+
+[linphone-ios.imageviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/ImageViewController.strings
+source_file = Classes/Base.lproj/ImageViewController.strings
+source_lang = en
+
+
+[linphone-ios.incallviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/InCallViewController.strings
+source_file = Classes/Base.lproj/InCallViewController.strings
+source_lang = en
+
+
+[linphone-ios.incomingcallviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/IncomingCallViewController.strings
+source_file = Classes/Base.lproj/IncomingCallViewController.strings
+source_lang = en
+
+
+[linphone-ios.incomingcallviewcontrolleripadstrings]
+file_filter = Classes/<lang>.lproj/IncomingCallViewController~ipad.strings
+source_file = Classes/Base.lproj/IncomingCallViewController~ipad.strings
+source_lang = en
+
+
+[linphone-ios.wizardviewcontrollerstrings]
+file_filter = Classes/<lang>.lproj/WizardViewController.strings
+source_file = Classes/Base.lproj/WizardViewController.strings
+source_lang = en
+
+
+[linphone-ios.wizardviewcontrolleripadstrings]
+file_filter = Classes/<lang>.lproj/WizardViewController~ipad.strings
+source_file = Classes/Base.lproj/WizardViewController~ipad.strings
+source_lang = en
+
+
+[linphone-ios.wizardviewsstrings]
+file_filter = Classes/<lang>.lproj/WizardViews.strings
+source_file = Classes/Base.lproj/WizardViews.strings
+source_lang = en
+
+
+[linphone-ios.uicallbarstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UICallBar.strings
+source_file = Classes/LinphoneUI/Base.lproj/UICallBar.strings
+source_lang = en
+
+
+[linphone-ios.uicallbaripadstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UICallBar~ipad.strings
+source_file = Classes/LinphoneUI/Base.lproj/UICallBar~ipad.strings
+source_lang = en
+
+
+[linphone-ios.uicallcellstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UICallCell.strings
+source_file = Classes/LinphoneUI/Base.lproj/UICallCell.strings
+source_lang = en
+
+
+[linphone-ios.uichatcellstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIChatCell.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIChatCell.strings
+source_lang = en
+
+
+[linphone-ios.uichatroomcellstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIChatRoomCell.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIChatRoomCell.strings
+source_lang = en
+
+
+[linphone-ios.uiconferenceheaderstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIConferenceHeader.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIConferenceHeader.strings
+source_lang = en
+
+
+[linphone-ios.uicontactcellstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIContactCell.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIContactCell.strings
+source_lang = en
+
+
+[linphone-ios.uicontactdetailsfooterstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIContactDetailsFooter.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIContactDetailsFooter.strings
+source_lang = en
+
+
+[linphone-ios.uicontactdetailsheaderstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIContactDetailsHeader.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIContactDetailsHeader.strings
+source_lang = en
+
+
+[linphone-ios.uihistorycellstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIHistoryCell.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIHistoryCell.strings
+source_lang = en
+
+
+[linphone-ios.uimainbarstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIMainBar.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIMainBar.strings
+source_lang = en
+
+
+[linphone-ios.uimainbaripadstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIMainBar~ipad.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIMainBar~ipad.strings
+source_lang = en
+
+
+[linphone-ios.uistatebarstrings]
+file_filter = Classes/LinphoneUI/<lang>.lproj/UIStateBar.strings
+source_file = Classes/LinphoneUI/Base.lproj/UIStateBar.strings
+source_lang = en
+
diff --git a/Classes/Base.lproj/AboutViewController.strings b/Classes/Base.lproj/AboutViewController.strings
new file mode 100644
index 000000000..2f4d991a1
Binary files /dev/null and b/Classes/Base.lproj/AboutViewController.strings differ
diff --git a/Classes/Base.lproj/ChatRoomViewController.strings b/Classes/Base.lproj/ChatRoomViewController.strings
new file mode 100644
index 000000000..a05025f33
Binary files /dev/null and b/Classes/Base.lproj/ChatRoomViewController.strings differ
diff --git a/Classes/Base.lproj/ChatViewController.strings b/Classes/Base.lproj/ChatViewController.strings
new file mode 100644
index 000000000..df5f383df
Binary files /dev/null and b/Classes/Base.lproj/ChatViewController.strings differ
diff --git a/Classes/Base.lproj/ContactDetailsLabelViewController.strings b/Classes/Base.lproj/ContactDetailsLabelViewController.strings
new file mode 100644
index 000000000..8b94d8006
Binary files /dev/null and b/Classes/Base.lproj/ContactDetailsLabelViewController.strings differ
diff --git a/Classes/Base.lproj/ContactDetailsViewController.strings b/Classes/Base.lproj/ContactDetailsViewController.strings
new file mode 100644
index 000000000..03077eff7
Binary files /dev/null and b/Classes/Base.lproj/ContactDetailsViewController.strings differ
diff --git a/Classes/Base.lproj/ContactsViewController.strings b/Classes/Base.lproj/ContactsViewController.strings
new file mode 100644
index 000000000..c293d1ca7
Binary files /dev/null and b/Classes/Base.lproj/ContactsViewController.strings differ
diff --git a/Classes/Base.lproj/DialerViewController.strings b/Classes/Base.lproj/DialerViewController.strings
new file mode 100644
index 000000000..ec1ffab03
Binary files /dev/null and b/Classes/Base.lproj/DialerViewController.strings differ
diff --git a/Classes/Base.lproj/DialerViewController~ipad.strings b/Classes/Base.lproj/DialerViewController~ipad.strings
new file mode 100644
index 000000000..ebef471b0
Binary files /dev/null and b/Classes/Base.lproj/DialerViewController~ipad.strings differ
diff --git a/Classes/Base.lproj/FirstLoginViewController.strings b/Classes/Base.lproj/FirstLoginViewController.strings
new file mode 100644
index 000000000..9a0f04f2d
Binary files /dev/null and b/Classes/Base.lproj/FirstLoginViewController.strings differ
diff --git a/Classes/Base.lproj/HistoryDetailsViewController.strings b/Classes/Base.lproj/HistoryDetailsViewController.strings
new file mode 100644
index 000000000..2954ead48
Binary files /dev/null and b/Classes/Base.lproj/HistoryDetailsViewController.strings differ
diff --git a/Classes/Base.lproj/HistoryViewController.strings b/Classes/Base.lproj/HistoryViewController.strings
new file mode 100644
index 000000000..39300297a
Binary files /dev/null and b/Classes/Base.lproj/HistoryViewController.strings differ
diff --git a/Classes/Base.lproj/ImageViewController.strings b/Classes/Base.lproj/ImageViewController.strings
new file mode 100644
index 000000000..c08d5260a
Binary files /dev/null and b/Classes/Base.lproj/ImageViewController.strings differ
diff --git a/Classes/Base.lproj/InCallViewController.strings b/Classes/Base.lproj/InCallViewController.strings
new file mode 100644
index 000000000..a592b9719
Binary files /dev/null and b/Classes/Base.lproj/InCallViewController.strings differ
diff --git a/Classes/Base.lproj/IncomingCallViewController.strings b/Classes/Base.lproj/IncomingCallViewController.strings
new file mode 100644
index 000000000..c3aa723a5
Binary files /dev/null and b/Classes/Base.lproj/IncomingCallViewController.strings differ
diff --git a/Classes/Base.lproj/IncomingCallViewController~ipad.strings b/Classes/Base.lproj/IncomingCallViewController~ipad.strings
new file mode 100644
index 000000000..db1fb0f94
Binary files /dev/null and b/Classes/Base.lproj/IncomingCallViewController~ipad.strings differ
diff --git a/Classes/Base.lproj/WizardViewController.strings b/Classes/Base.lproj/WizardViewController.strings
new file mode 100644
index 000000000..638e700a9
Binary files /dev/null and b/Classes/Base.lproj/WizardViewController.strings differ
diff --git a/Classes/Base.lproj/WizardViewController~ipad.strings b/Classes/Base.lproj/WizardViewController~ipad.strings
new file mode 100644
index 000000000..be01bf7ee
Binary files /dev/null and b/Classes/Base.lproj/WizardViewController~ipad.strings differ
diff --git a/Classes/Base.lproj/WizardViews.strings b/Classes/Base.lproj/WizardViews.strings
new file mode 100644
index 000000000..1f22b0423
Binary files /dev/null and b/Classes/Base.lproj/WizardViews.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UICallBar.strings b/Classes/LinphoneUI/Base.lproj/UICallBar.strings
new file mode 100644
index 000000000..726f09e44
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UICallBar.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UICallBar~ipad.strings b/Classes/LinphoneUI/Base.lproj/UICallBar~ipad.strings
new file mode 100644
index 000000000..b4e261950
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UICallBar~ipad.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UICallCell.strings b/Classes/LinphoneUI/Base.lproj/UICallCell.strings
new file mode 100644
index 000000000..92138347c
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UICallCell.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIChatCell.strings b/Classes/LinphoneUI/Base.lproj/UIChatCell.strings
new file mode 100644
index 000000000..c16425967
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIChatCell.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIChatRoomCell.strings b/Classes/LinphoneUI/Base.lproj/UIChatRoomCell.strings
new file mode 100644
index 000000000..9ca9f1ae8
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIChatRoomCell.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIConferenceHeader.strings b/Classes/LinphoneUI/Base.lproj/UIConferenceHeader.strings
new file mode 100644
index 000000000..7371f5243
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIConferenceHeader.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIContactCell.strings b/Classes/LinphoneUI/Base.lproj/UIContactCell.strings
new file mode 100644
index 000000000..b3ed706ee
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIContactCell.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIContactDetailsFooter.strings b/Classes/LinphoneUI/Base.lproj/UIContactDetailsFooter.strings
new file mode 100644
index 000000000..85d6b67a3
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIContactDetailsFooter.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIContactDetailsHeader.strings b/Classes/LinphoneUI/Base.lproj/UIContactDetailsHeader.strings
new file mode 100644
index 000000000..9da4ee791
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIContactDetailsHeader.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIHistoryCell.strings b/Classes/LinphoneUI/Base.lproj/UIHistoryCell.strings
new file mode 100644
index 000000000..4bdf055cb
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIHistoryCell.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIMainBar.strings b/Classes/LinphoneUI/Base.lproj/UIMainBar.strings
new file mode 100644
index 000000000..c472a605a
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIMainBar.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIMainBar~ipad.strings b/Classes/LinphoneUI/Base.lproj/UIMainBar~ipad.strings
new file mode 100644
index 000000000..a12201c8a
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIMainBar~ipad.strings differ
diff --git a/Classes/LinphoneUI/Base.lproj/UIStateBar.strings b/Classes/LinphoneUI/Base.lproj/UIStateBar.strings
new file mode 100644
index 000000000..cce74a594
Binary files /dev/null and b/Classes/LinphoneUI/Base.lproj/UIStateBar.strings differ
diff --git a/Resources/en.lproj/Localizable.strings b/Resources/en.lproj/Localizable.strings
index 157c48b40..7beecb202 100644
Binary files a/Resources/en.lproj/Localizable.strings and b/Resources/en.lproj/Localizable.strings differ
diff --git a/Tools/update_localization.sh b/Tools/update_localization.sh
new file mode 100755
index 000000000..fffb57f3d
--- /dev/null
+++ b/Tools/update_localization.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+root_directory=$(cd "$(dirname $0)" && pwd)/../
+
+rm $root_directory/Resources/en.lproj/Localizable.strings
+find $root_directory/Classes -name '*.m' | xargs genstrings -u -a -o $root_directory/Resources/en.lproj/
+
+to_utf8=$(mktemp -t linphone)
+for xibfile in $(find $(find $root_directory/Classes -name Base.lproj) -name '*.xib'); do
+	stringsfile=${xibfile/.xib/.strings}
+
+	ibtool --generate-strings-file $stringsfile $xibfile
+
+    # remove if empty
+    iconv -f utf-16 -t utf-8 $stringsfile > $to_utf8
+    if [ ! -s $to_utf8 ]; then
+    	echo "$(basename $stringsfile) is empty, removing"
+    	rm $stringsfile
+    else
+		echo "$(basename $xibfile)->$(basename $stringsfile)"
+
+		res_name=$(basename $stringsfile | tr -d '_.~-' | tr '[:upper:]' '[:lower:]')
+		dir_name=$(echo $(dirname $stringsfile) | sed -E "s|$root_directory/||")
+		# if not registered in transifex config file, register it
+		if ! grep -q $res_name $root_directory/.tx/config; then
+			echo "not found in .tx/config, adding it"
+			echo "
+[linphone-ios.$res_name]
+file_filter = $(echo $dir_name| sed 's/Base.lproj/<lang>.lproj/')/$(basename $stringsfile)
+source_file = $dir_name/$(basename $stringsfile)
+source_lang = en
+" >> $root_directory/.tx/config
+		fi
+    fi
+done
+rm $to_utf8