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Have you ever needed to change your phone number but worried about transferring all your contacts and other information to the new number? While this can be a lot of work, Telegram does it all for you. You can easily change the phone number attached to your account without losing any of your chats or contacts. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange. To do this, long-press on a picture you have sent. Choose the ‘Edit’ button on the top, just like you’d edit a text message once you have sent it. Now, you will get an in-built photo editor where you can add filters, draw or crop images. Alternatively, you can even replace the picture and send another one in its place.

Telegram’s core functionality is the same as most other messaging apps: You can message other Telegram users, create group conversations, call contacts, make video calls, and send files and stickers. However, there are a few specific features that make it work differently from other chat apps. If you select the Scheduled option, the auto-night mode will kick in at a pre-defined time which you can change. If you select the Automatic mode, the auto-night mode will start depending on the ambient light. You can slide the slider to select at what percentage of the ambient lighting do you want the night mode to start at. Personally, I prefer the scheduling option, however, you can use the one you like. Open Telegram app -> Settings -> Privacy and Security. Telegram Cloud is just like a chat, where you can save almost all common file types (such as text messages, images, links, audio and video notes, locations, contacts, and links) as long as they are not bigger than 1.5 GB.

If you want to send big files, Telegram has much of the competition beat with support for up to 2GB files. Meanwhile, WhatsApp’s limit is a measly 100MB, WeChat’s limit is also 100MB, and Skype’s limit is 300MB. Telegram files are also stored in the cloud, so you can access them from other devices. Who are the social leaders from Maharashtra holding up Mahatma Gandhi’s l...Premium Sometimes you don’t want to leave any evidence of what nonsense you are about to say. Instead of deleting chats manually, you can use self destruct messages on secret chats by setting a timer. To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app.

To upload new profile images, open Settings. On Android, tap on the camera icon at the top-right. On iPhone, tap the Edit button and choose Set New Photo or Video. Telegram New Photo