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Usernames Global message deletion Here, Telegram will give you some information about what happens when you change your number. Basically, all your messages will be moved to the new number and your new number will be automatically added to all your existing Telegram contacts, barring the blocked contacts. It’s way easier then re-sharing your new number with everyone. To change the number, tap on the “Change Number”, enter the new number and follow the process on your screen.

Next up, tap Sound and then choose your custom notification sound located under the Telegram Tones section. Make sure to tap Done at the top right to finish. Interestingly, Telegram names your custom notification sound as Cloud Tone and also allows you to upload any audio as a notification sound for a chat. As Telegram keeps growing at rocket speed, many users have expressed their will to support our team. Today we're launching Premium Telegram Premium – a subscription that lets you support Telegram's continued development and gives you access to exclusive additional features. Custom Theme Your Telegram 3b Custom Notification Sounds

Plus, if you’re using the “secret chats” feature, you’re getting the same level of end-to-end encryption. On top of this, users can’t forward or screenshot messages in secret chats, and messages can be programmed to self-destruct. Deleting a message also deletes it for everyone on the service, and users have the option to delete not just their own messages, but other users’ messages, too. It’s also worth mentioning that all chats are encrypted, even if not end-to-end encrypted. To create a username, go to “Settings” and tap “Username” under the account section. There is also a “Bio” option, where you can add a few lines about yourself. Anyone who opens your profile will see this text. Turn on Secret Chat You don’t have to start from scratch to make Telegram apps. TDLib (Telegram Database Library) makes it easy to develop feature-rich and secure apps. It takes care of local data storage, network implementation details, and encryption so that you can focus on design and interfaces.

While you can receive/send files irrespective of their type and size, you can disable automatic media download and auto-play media to save mobile data. This way, you can also avoid downloading unnecessarily large files. Read: 8 Most Common Encryption Techniques To Save Private Data