HTTP proxy

Is there a way to set a HTTP proxy on the phone ?
I would like to use some action URLs to send messages to a web server (on the internet) but the problem is that my phone is in a private network. Because i have no access to the internet from this network my idea is to configure a http proxy (on a server that the phone can reach) to forward the messages.

I have a T27P phone (firmware is 45.80.0.25)

thanks in advance