sbiddle:NonprayingMantis:juha: You can't put 3G voice calls over EV-DO though... although I have used both Skype and VoIP over it just fine.
So what?
3G provides no material benefit for voice over 2G/2.5G anyway.
It does actually, at least when you're talking about WCDMA. That offers significantly higher network capacity than GSM and also offers AMR as the defacto voice codec although Vodafone have now deployed AMR on their GSM network but the majority of GSM operators have not done this.
Vodafone NZ does not have AMR on the 2G network 3G yes,
Capacity on 2G has been increased by more TRXs on cells or 1800 deployed
John


