On Mon, Nov 15, 2010 at 8:58 AM, Patrick McHardy wrote: > Could you provide a binary tcpdump (-w file -s0) of registration > and a subsequent call please? These were captured running my "v2" patch, since the phone cannot register without it: http://lkml.org/lkml/2010/11/14/181 goodreg.pcap - good registration goodcall.pcap - call initiation + termination This is all that happens in the absence of the "Cisco patch": badreg.pcap - bad registration Phone's LAN IP is 192.168.0.28 Public IP (as seen by the SIP proxy) is 111.222.33.222 SIP proxy is sip.iptel.org = 213.192.59.75