an IP PhoneAarenet „an IP-Phone“ is an Internet Telephony based Soft Phone that enables you to receive and make calls on your iPhone. Connection is made to the dedicated central hosted Switching system from Aarenet. an IP-Phone enables VoIP calls over 3G and WiFi networks and supports different types of codecs.
Note: you need to have an account from your VoIP provider in order to use this software. This is a supplier specific application and not a generic VoIP service.