IP Calling using Mobile

[ranjithbajpe]

hi
Do anyone say me a cheap way to make international calls using a mobile. Like we can use calling cards so that pric ewill be cheaper. and IP calling also. Can we make IP calls using a mobile? IS there any site.
soem site provide that service, but i donot know which is that?
please any one will help me.

[expertno.1]

Google man