I have installed RED5 Server and downloaded red5phone(http://code.google.com/p/red5phone/) and installed it too. I have a local asterisk server and i checked red5phone application and it works perfect. Now I am trying to connect the red5 phone to another asterisk server in my network but i find that it's not getting connected. I gave the respective phone no, username, password, realm and sip server address(of the network asterisk server). is it possible to get connected to asterisk server other than a local one?