viber free calls abnd txt via your network

[Napster]

It comes in very handy for me as o2 it crap in my house, so im able to ring who i need.

o2 in my house it shit but as soon as i go out the door its excellent, no idea why but i play my face up with them and got £6 a month knocked of contract.

 

[skinz]

If I may add my 2p worth

Both party's should also have good speeds as when I use Viber via 3g to call the states - its not usable

Havent tried with wi-fi as yet as if I am at home I get free calls to the states (landlines and mobiles) using voip discount

So in my case I really don't use it and have never had good results the way I use my phones

 

[melttc]

Used this since it came out and is really handy yes better on wifi but so are most things it is easily usable on 3g and also good for messages too.
If you want to try something good try tango and get a few mates on it that is video calling and has some good stuff on there aswell video messages and things you can send....try it