Hello All, I'm having trouble getting a Zultys ZIP2 to work with Asterisk, along with some other troubles in general. I keep getting a "Got SIP response 481 "Call Leg/Transaction Does Not Exist" back from x.x.x.x). Even when Asterisk reports that the ZIP2 registered correctly, I can't make any calls out from the phone, or calls into the phone. Occaisionally I get a busy tone when I try to dial also. This is the entry for the ZIP2 in sip.conf [phone10] type=friend username=phone10 host=dynamic dtmfmode=rfc2833 mailbox=110 context=sip Incidentally, when I place the ZIP2 in a local subnet 192.168.0.x, the web interface for the phone is quick. But when I place it on a public IP address, the web interface is all but unusable and times out 90% of the time. However when I ping the phone it comes back with a 1~5ms ping. Does anyone have any ideas? Has anyone got a ZIP2 to work wth Asterisk? Thanks in Advance, Jason