I want to use MY asterisk server to help some people to get MULTIPLE gateways to their VoIP phone. E.g. UK, US, Canada DIDs, registered to my asterisk server, with dedicated dialing to my friend. I believe that the RTP (voice streams) are going directly from the DIDs to my friends, and will not use up my bandwidth. I believe that however, if he use my mailbox it will use my bandwidt, as well he will use twice the bandwidth, if he use a conference call with a third party. Besides the confirmation about the above, I would like how much bandwidth I will need to handle such calls for my friend? bye Ronald