Hi, i try to register my nokia 6300i sip client to freeswitch. The sip client connect to freeswitch but don't work well. There is a problem with sip NOTIFY. This is the log: nta: resent NOTIFY (109814666) to udp/190.90.122.161:4301 tport_pend(0x70dc60): pending 0x7b3cd0 for udp/209.20.72.171:5060 (already 3) nta_outgoing_timer: 1/4 resent, 0/4 tout, 0/1 term, 0/5 free nta: timer set next to 1270 ms nta: timer E fired, retransmit NOTIFY (109814655) tport_release(0x70dc60): 0x2aaab0123b20 by 0x2aaab0123ed0 with (nil) tport_tsend(0x70dc60) tpn = udp/190.90.122.161:4301 tport_resolve addrinfo = 190.90.122.161:4301 tport_by_addrinfo(0x70dc60): not found by name udp/190.90.122.161:4301 tport_vsend returned 893 nta: resent NOTIFY (109814655) to udp/190.90.122.161:4301 tport_pend(0x70dc60): pending 0x2aaab0123b20 for udp/209.20.72.171:5060 (already 3) nta_outgoing_timer: 1/4 resent, 0/4 tout, 0/1 term, 0/5 free nta: timer set next to 184 ms nta: timer K fired, terminate NOTIFY (109814654) outgoing_reclaim_all((nil), (nil), 0x422d2e30) nta_outgoing_timer: 0/4 resent, 0/4 tout, 1/1 term, 1/5 free nta: timer set next to 420 ms nta: timer E fired, retransmit NOTIFY (109814665) tport_release(0x70dc60): 0x2aaabc002b40 by 0x2aaabc0102f0 with (nil) tport_tsend(0x70dc60) tpn = udp/190.90.122.161:4301 tport_resolve addrinfo = 190.90.122.161:4301 tport_by_addrinfo(0x70dc60): not found by name udp/190.90.122.161:4301 tport_vsend returned 893 nta: resent NOTIFY (109814665) to udp/190.90.122.161:4301 tport_pend(0x70dc60): pending 0x2aaabc002b40 for udp/209.20.72.171:5060 (already 3) nta_outgoing_timer: 1/4 resent, 0/4 tout, 0/0 term, 0/4 free nta: timer set next to 1810 ms I put this line in 1000.xml (../conf/directory/default)for the NAT purpose <variable name="sip-force-contact" value="NDLB-connectile-dysfunction"/> On the freeswitch server all ports are opened With Zoiper client all work fine This is the NAT configuration on nokia sip client: <!-- NAT/FW settings, w902E --> <characteristic type="APPLICATION"> <parm name="APPID" value="w902E"/> <parm name="NAME" value="NAT/FW Traversal settings"/> <characteristic type="NW"> <parm name="APPREF" value="NAT_FW_settings"/> <parm name="DOMAIN" value=""/> <parm name="STUNSRVADDR" value=""/> <parm name="STUNSRVPORT" value=""/> <parm name="NATREFRESHTCP" value="30"/> <parm name="NATREFRESHUDP" value="20"/> </characteristic> <characteristic type="NATIAP"> <parm name="TO-NAPID" value="INTERNET"/> <parm name="REFRESHTCP" value="1200"/> <parm name="REFRESHUDP" value="28"/> <parm name="STUNRETRANSMIT" value="250"/> </characteristic> </characteristic> Any idea? Thank's