I am having a Nokia C5-03 and i want to use VOIP services from Smartvoip services on which i have bought some balance to make intenational calls.

I donwloaded Nimbuzz , Fring and also an application MobileVoip from the SmartVoip themselves on my mobile phone, But i am not able to make a VOIP call .

On Nimbuzz the call doesn't work at all , on fring the call gets connected but there is no voice and on Mobile Voip it says unsupported Media Type as soon as i dial a number.

what is the problem , does C5-03 suppoprts VOIP at all?

Has any one else gone through this kind of a problem before and was able to rectify it?

Awaiting for a reply.....

Thankks and regards