webservice call from outside of the network

2 related questions:

1. I have made a very simple web service using soamanager. I am able to test the webservice successfully  using  SOAPUI application with its WSDL.

But Webservice only works when I am in the same network. How can I publish this so everyone has access to it?

2nd question :I have created a simple SOAP web service to approves pr. This Function simply imports PR num and exports a simple string message.

is there a possible way for me to make a call to this abap web service by simply calling it with a  URL?If so, will be able to return a string message to the client?

Thanks