Dear Admin,

My name is Ameneh from India. I am new in SIP. I have installed asterisk 1.8 on my ubuntu system and could have registered the internal users in my LAN to talk over x-lite. 

Now my question is how can I make a call to a mobile in India or a PSTN number in another country that would require a public SIP I think. 
how can I make my SIP server as public? would you please help me? 

thanks and regards,
Ameneh