I am getting one prob while using my SIP VOIP phone, when I call from my Phone first time after loged in, it's OK but whenever I try to call 2nd time, its start dialing and but Status remains Connectting, after some time it shows Timed Out.
And now the status of my Phone becomes Lged Timed Out, Contact System Administrator. As I think this is some port problem. So anyone cann suggest me what I have to do. I am Using X-Pro for Dialing and I am here in UAE.

Contact your system admin or VoIP carrier.

I have tried already, u know wht..
Here in UAE there are 2 types of DSL services, one is for Home Users and one is for Office Users..
It is working fine on the service which is for Home Users, but always gettings prob on Business Users DSL.
as i think there are some ports blocked from ISP.. so how can i jump them, or try to connect from another port

Again, the only people that can help you are your carriers.

And please don't ask or expect us to help you get around restrictions imposed by your ISP, company, school or government. We cannot do that and it unethical for you to try.