Telegram is a fast and reliable messaging service that works quite well in conditions of poor connectivity.
Hangouts is a messaging service where everyone you know has an account.
Both services use proprietary, closed protocols. Hence, a dilemma: how to use Telegram to chat with your contacts on Hangouts? (Or the other way around.)
Sameroom can help.
If you have any questions about getting this to work, please ping us on Twitter.