My fellow haskellers, I wrote a very simple library to send SMSs using the DiamondCard VoIP provider. At the present time, it uses the HTTP interface to contact the provider (there's a SOAP interface, but I haven't been able to make it play along with shoap). The current API is quite straightforward: sendSMS :: String -> String -> String -> String -> [ String ] -> IO SMSDeliveryResult sendSMS accountID pinCode message fromNumber toNumbers I don't like submitting alpha-stage software to hackage, so it's only in github for now: https://github.com/ivanperez-keera/keera-network-sms-diamondcard In a few days I plan to release a small GTK frontend that I've been using for a few months. If you give either of them a try, I'd be glad to know where it got you. Cheers, Ivan Perez