To send promotional messages, etc. in channels and groups. If before sending (especially mass messages) the message, check the number of recipients by Telegram Filter program. \tYou will be sure that 100% of the numbers you want to send messages to are telegram numbers \tThe program works without limitation. Each number of numbers is analyzed for you and the output is stored as a text file \t\u00a0It is very user-friendly and does not require much knowledge and time \tCompatibility with all operating systems \tIt can be installed and running on all versions of the Windows operating system and can also work on the Linux operating system!