rajadeep....I am talking about VOIP via software only. I used Yahoo Messenger & VOIP Stunt - both failed to work. I could even hear the phone ringing & the moment the phone was picked on the other side, the audio got jumbled, & neither did my audio reach there.And i also checked whether it was my PC's fault or not. I joined the MTNL line to my other PC, from where i used to call up regularly. But there too, it didnt work.But this, i am talking about July-September last year. Dont know if they have been allowing it after that.