Hi!
I found some interestig phone software, and since i Found so much good info here in this site i tought to post it here.
U know skype...ovious..! Look for
www.voipstunt.com its the same parogramm, only that you phone (from comp to comp..for freelike skype) also for free on landline phonenumbers on the maincountries! really great. So i use this for landline phoning and skype for call-phones.
For now this programm is only available on desktop but soon on PPC too.
enjoy it!