Hi
It's a little expensive if you have many SMS'es - does anyone know who to contact (e.g. at Swisscom) to get a package-deal with a direct TCP interface?
There's a service provider called "aspsms" we used in the company I worked before. AFAIK they provide direct socket connections and reasonable costs. Probably you find their website in Google.
http://www.aspsms.ch/instruction/prices.asp
They provide also a webservice interface which is very easy to use. A plus: reports about successful delivery of the sms.
I can give you a perl and php client example which works with aspsms, if you are interested.
Regards, Patrick Feisthammel