<p>I stumbled upon this feature lately and since my clients support it, decided to add it. Wrote a lua wrapper over a web sms gateway and it's working correctly. I however found peer-to-peer chat very unreliable. There is no spooling of messages whenever one leg is unavailable and it isn't always delivering messages( i think this might be a client issue though). Who is maintaining the mod and what are the planned feature updates to it. I can write an external spooler, but i can bet there's a better event based approach in FS core.</p>