Telegram Messenger Beta recently got updated to version 18.104.22.168 in Windows Phone Store with new features and performance improvements. You can now have custom sounds for push-notifications. Find the full change log below.
New in version 22.214.171.124:
– Fully rewritten secret chats, with hold-to-view photos on short timers
– Custom sounds for push-notifications
– Maximized app opening speed
– Optimized animations when viewing photos, added fullscreen mode
– Optimized font size for FullHD screens
Download it here from Windows Phone Store for free.