4 ms·could you be more specific? what exactly service did you talk about in the top comment?by xxqs 15y agocould you be more specific? what exactly service did you talk about in the top comment?tnuc 15y ago>what exactly service did you talk about in the top comment? Skype.xxqs 15y ago>They do talk to each other, users pay for the privilege. what exactly service are you talking about? what kind of communication, between which parties?