[someProvider] trunk_username = someusername ; this would be the context name in users.conf for this trunk allow = all providername = SomeProvider (Sip) providerlogo = images/SomeProvider.gif providerdesc = Some Description about your Service provider hasexten = no hasiax = no hassip = yes registeriax = no registersip = yes host = someproviderhostname.com ; usecallerid = yes ; nat = yes ; port = 5060 ; insecure = invite regurl = http://www.someprovidersWebsite.com