[Freeswitch-users] does anyone have a working FS / aastra config

I am having problems getting an Aastra 57i to make calls through FS. the phone registers fine, but all calls fail. If i use xlite or a nokia sip phone, i have no problems. Here is a packet capture of an attempted call: http://pastebin.freeswitch.org/7039 notice packet 9, it should have been a SIP INVITE, but it turned out to be a Fragmented IP protocol The phone and FS are both on the same lan subnet, and the phone connects fine with an asterisk server on the same subnet. Is there a known config for aastra phones that I can reference, or does anyone know why I am having this issue? -- john