SMS Applications

[ghell]

I have seen a few SMS applications around, some of which involve connecting your phone to a serial port and pressing send on your pc (no idea why someone would want to do that, typing 160 characters is easier than using your thumbs i suppose) and some actually send an SMS message over the internet. I have been looking around and the best open source library i have seen is WWW::SMS (http://www-sms.sourceforge.net/). However, I don't really understand the whole theory of the thing. Is it possible to actually send SMS over the internet (similarly to SMTP) or do you need to ask a phone service provider to do it for you? There are quite a few free sms sites provided by phone companies and there is also a fair amount commercial software to send SMS but I can't find much free stuff to do it so I was looking into if it was possible to make one myself.

Does anyone have any experience with this or know if it's possible and if it is, anywhere that i can find any resources on how to do it?

Thanks :)

[morongo]

Take a look at some of these, several treatments:

http://sourceforge.net/search/?type_of_search=soft&words=sms

I also found this on the protocol:

http://en.wikipedia.org/wiki/EMI_(protocol)

Looks like you connect (tcp/ip) with a gateway provider who stores/forwards the message to the phone# in question.

Interesting.