Thanks Bill,
I just tried Zoiper, but I see the same behavior. Zoiper sends SIP register message to the server (destined to UDP 5060) and the server responds with ICMP port unreachable messages.
Thanks Bill,
I just tried Zoiper, but I see the same behavior. Zoiper sends SIP register message to the server (destined to UDP 5060) and the server responds with ICMP port unreachable messages.