diff --git a/telethon/client/chats.py b/telethon/client/chats.py
index 1137544b..d712f698 100644
--- a/telethon/client/chats.py
+++ b/telethon/client/chats.py
@@ -829,7 +829,7 @@ class ChatMethods:
             invite_users: bool = None,
             pin_messages: bool = None,
             add_admins: bool = None,
-            manage_call: bool = True,
+            manage_call: bool = None,
             anonymous: bool = None,
             is_admin: bool = None,
             title: str = None) -> types.Updates:
diff --git a/telethon/tl/custom/participantpermissions.py b/telethon/tl/custom/participantpermissions.py
index 7053cda7..c59a05ed 100644
--- a/telethon/tl/custom/participantpermissions.py
+++ b/telethon/tl/custom/participantpermissions.py
@@ -129,3 +129,7 @@ class ParticipantPermissions:
     anonymous = property(**_admin_prop('anonymous', """
         Whether the administrator will remain anonymous when sending messages.
     """))
+    
+    manage_call = property(**_admin_prop('manage_call', """
+        Whether the user will be able to manage group calls.
+    """))