Matrix chat has bridges that let you link a number of chat services like sms, facebook messenger, instagram messenger, slack, and a lot more. It's no trillian but it's as close to a modern equivalent that I think you'll get.
Matrix chat has bridges that let you link a number of chat services like sms, facebook messenger, instagram messenger, slack, and a lot more. It's no trillian but it's as close to a modern equivalent that I think you'll get.