If one wishes to have use of several VOIP 'lines', but with no PBX, you need to register all those SIP accounts with the client (softphone etc). You should then be informed which account is receiving a call and can pick a particular account from which to make calls. Once a PBX is in use, you can register the client as a single extension of the PBX and direct calls as appropriate to that extension - I assume with the correct caller ID and incoming account information passed to the recipient so they know as much as in the 'no PBX' configuration. But what about outgoing calls. In this scenario, registered as a single extension, how would it be possible to pick the outgoing 'line' (i.e. account) to use? Would it have to be done by dialling a prefix or is there another way? Is it client dependent? Ken G i l l e t t _/_/_/_/_/_/_/_/