Hi Rene,
On 12/10/2015 06:01 PM, Rene Montilva wrote:
What could be the scenario, when hangup a call and kamailio show empty the $du var and can't send BYE to endpoint
$du is ordinarily only set when the network and transport-layer destination of the request is different to where consuming the domain part of the request URI ($ru) would normally take it.
What's $ru say for the BYE, and is it reachable? Does it match the Contact of the dialog party to which it's going? Do other end-to-end sequential requests work, e.g. end-to-end ACK for 2xx INVITE reply?