Thanks so much. I'm yet to check the quality but felt the need to thankyou.
ps: I just checked
http://www.testyourvoip.com and it reflects the problem I had calling Australia on Xmas day. This website tried port 5060 but it didn't work and then it auto tried 6000 which did but the results were worse than a crummy cellphone call. All other areas were like calling next door! Anyone understand why this would be? I note that there was a major earthquake effecting Asia.. maybe call quality is effected by this as the call is routed via Asia and some of the infastructure is not yet back up?