Hello, I have succeessfuly installed SER and was able to register from Windows Messenger 5.1 in my LAN. I have two computers, one for SER and another for MySQL. Next, I will try to connect to SER from outside my LAN. All computers in my LAN have private IPs. I use NAT in my router. Please suggest me, what documents/readme I would read. Thanks, -- Mohammad Khan sip:beeplove@iptel.org