Am 09.12.2010 13:31, schrieb Anshuman S. Rawat: > Now, OpenSIPS is unable to route the request to the contact when the > client is behind a NAT. Is there a way to make the port on 'Contact' > same as the source port? That way OpenSIPS would route the request over > the already established TCP connection. As a workaround: use fix_nated_register() in the SIP proxy to ignore the announced contact. regards Klaus