I've just installed Skype in my smartphone and I can see it can intercept an outgoind call, so it can be done via Skype or KeyPad, when I want to call one of my contacts.
I have currently subscribed in a Web SMS service, from where I can send an SMS message using HTTP GET.
So, what I want to implement is an intercepting mechanism just like Skype; when sending an SMS message, I'd like to choose whether using my mobile provider service, or my web SMS service.
Are there any sources I can study, in order to get some insight?
P.S. My smartphone is an Xperia X10 Mini running Android 2.1-update1 (I know this is irrelevant to my question but I think it's good to know!)
Thanks in advance,