We have several channels in the slack
You can sign up for a slack account by going to the bottom of https://boscoin.io there is a slack invite form at the bottom of the website. You will be automatically added to the main channels.
You may discuss the project either here on the forum or the slack but most of the general discussion is on the slack.
The forum and slack are the 2 primary community discussion applications.
We do not have an official telegram We use slack for our community.