What are you trying to accomplish ? We are using full SMS Texting in a few ways, such as texting admins when the site is throwing errors, as well as sales staff as new orders come in. Finally we allow members/owners of groups to sms/text their group. We are actually developing a module that will allow text to come into a short code and then be sent via email to our Kentico system which will then be processed. Everything is done via API calls, a custom .dll and 3 web parts (custom .ascx).
If you layout what you are attempting, perhaps I could offer you some insight.