If you do not want this to happen and want Telegram to keep running in the background to send you notifications in real-time, you can head over to Settings/ Notifications and Sounds/ Keep Alive Service and turn it on. Go to Settings > Chat Settings to create your own theme. You can also customize your chat background image in “Chat Background” in Chat Settings.
Send Scheduled and Silent Messages Most people use third-party apps to make sure that no one gets a hand on their private conversations. Telegram, however, has its own lock function to hide privates messages behind a passcode. Unlike other cloud-based solutions, Telegram’s personal space has infinite storage. You can also send all kinds of files here. However, note that each file you send must be sized lesser than 1.5GB. This is useful when you are on your way to a meeting or trying to coordinate with friends at a large event. Rather than sending static locations every minute, you can share your live location with your friend circle for 15 minutes, 1 hour, or 8 hours. Of course, you can stop sharing at any time.
With these features, you're ready to become an advanced Telegram user and take full advantage of the app. There are lots of little touches around the app that make it a joy to use, so you may find even more. Live location & proximity alerts Just press and hold on the message you want to change and then tap the “edit” button. From there, you can modify the message and resend it. Telegram will put an “edited” label on the message to let recipients know of the update. With the ability to send files up to 2 GB (or 4 GB), users can easily share large media items from other apps directly to Telegram on any mobile platform. This saves both time and storage space – so you don't have to save the file before sending it in Telegram.
You can surely delete messages that you have sent, but did you know that Telegram has brought a new feature that lets you delete messages sent by other users too. That’s kind of weird, but this feature is for users who prioritize privacy over everything. To use this feature, just select the received message and tap on the “delete” button. Now, select “Also delete for X” and tap on “Delete”. The message will disappear from both ends without leaving any trace. Security
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