hello every body,
is nokia 6600 and s60v2 fp1,2 supports voip over gprs ?

i ask this because now there is many apps provides calling over gprs,3g and wifi
like nimbuzz and fring

when i install nimbuzz on 6600 and try calling from my pc to nimbuzz"on 6600"
there is nothing appears on 6600 screen and i cannot receive the call

is nokia 6600 and s60v2 initial release and fp1,2 supports voip over gprs ?

if nokia 6600 supports voip over gprs what app i can use successfully.

thank you in advanced .