I applaud the fact that you want to get folks to hook up, but we use Slack for this kind of communication:
https://coronalabs.com/slack/
Please note, anything but the shortest of dialogues is best done here in the forums. Why? Well … because having dicsussions in the forums is permanent and therefore useful to future folks who encounter similar issues.
Chats and issue resolution in a transient channel like Telegram, or even Slack, get lost and only help the person asking the question in the moment. That kind of communication doesn’t serve the community.
PS - I’m not clear on the value of ‘on the go’ questions either. I encourage folks not to use their phones to post questions as it just make them unreadable. i.e. Better to ask questions when at a proper computer with a keyboard so you can easily type legible questions with proper formatting.
That said, I may just be an old stick in the mud on this particular facet of the current generation of game developers’ behavior.