+ 0 Votes sip2iax viman1 2 years ago Asterisk can work with iax and sip at one time. All our projects use iax trunks via remote servers and sip accounts for voip phone and adapters. Some phone like fanvil bw210 use iax to. + 0 Votes Reponse To Answer chinesehkl 2 years ago Thanks for confirming this. I have tested and it works too.