Hi all. Anyone to share some experience with Nokia E51 and asterisk? We are trying to connect the E51 to our asterisk but to no avail. Googling said that it should work, but we are seeing real strange things here: - tcpdump reveals the nokia is talking to other ports than 5060 - registration is not possible at all, right now there is no network traffic to the asterisk box at all. A softphone on the same wlan segment registers without any problem. The how-tos on the web suggest different settings concerning the proxy/registration setup....But none of them works for us. But we are not nokia guys at all.... So, any help greatly appreciated! The setup: Cisco AP with EAP-TLS. Connected to an switch on which several vlans are connected to a cisco router. The internal network (192.168.23.0/24) talks to the DMZ, on which the radius (for EAP-TLS) and also the asterisk box is hosted. IP Addresses are assigned via DHCP from the AP. The Laptop from which i am writing has x-lite installed and that works just fine with the same credentials we are trying to setup the nokia: 2001 abc sipgate No RFC3581 We have been playing with nat=yes|no, but we cant get it to work. Thanks, Christian