diff --git a/Classes/ContactsTableViewController.m b/Classes/ContactsTableViewController.m
index eec7d4ae0..2fcd57e3f 100644
--- a/Classes/ContactsTableViewController.m
+++ b/Classes/ContactsTableViewController.m
@@ -37,6 +37,7 @@ static void sync_address_book (ABAddressBookRef addressBook, CFDictionaryRef inf
     avatarMap = [[NSMutableDictionary alloc] init];
     
     addressBook = ABAddressBookCreate();
+	
     ABAddressBookRegisterExternalChangeCallback(addressBook, sync_address_book, self);
 }
 
@@ -134,7 +135,7 @@ static void sync_address_book (ABAddressBookRef addressBook, CFDictionaryRef inf
                     CFRelease(lFirstName);
             }
         }
-        CFRelease(lContacts);
+        if (lContacts) CFRelease(lContacts);
     }
     [self.tableView reloadData];
 }
diff --git a/Classes/Utils/FastAddressBook.m b/Classes/Utils/FastAddressBook.m
index bdb6e1b70..ffa5d826a 100644
--- a/Classes/Utils/FastAddressBook.m
+++ b/Classes/Utils/FastAddressBook.m
@@ -111,8 +111,16 @@ static void sync_address_book (ABAddressBookRef addressBook, CFDictionaryRef inf
     if ((self = [super init]) != nil) {
         addressBookMap  = [[NSMutableDictionary alloc] init];
         addressBook = ABAddressBookCreate();
-        ABAddressBookRegisterExternalChangeCallback (addressBook, sync_address_book, self);
-        [self loadData];
+		ABAddressBookRegisterExternalChangeCallback (addressBook, sync_address_book, self);
+		if (ABAddressBookGetAuthorizationStatus && ABAddressBookGetAuthorizationStatus() !=  kABAuthorizationStatusNotDetermined) {
+			ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
+				if (granted) [self loadData];
+			});
+		} else {
+			[self loadData];
+		}
+       
+        
     }
     return self;
 }
diff --git a/submodules/externals/exosip b/submodules/externals/exosip
index 018d0024d..cbb76acfe 160000
--- a/submodules/externals/exosip
+++ b/submodules/externals/exosip
@@ -1 +1 @@
-Subproject commit 018d0024de17e4a616256ca5897ac18c24058c94
+Subproject commit cbb76acfe36aaa0e79911569e218d77c622fa9d4