Hello all:
I used to be able to set up SIP account(from voipcheap.co.uk) on my n800 with os2007. But after upgrade to OS2008, I can still get connected to the SIP( and able to receive calls) but not able to make a call. An error message says: "Not able to establish connection".
Does anyone has the similar problem? and happens to know how to solve it?

cheers,