I just did a UDP port scan using nmap on the LAN to my SPA3102 and found only UDP5060 used by Line 1 is available. I suppose UDP5061 is used by the PSTN Line but it is not available, is this normal or I missed something? I have both Line 1 and PSTN Line enabled. If UDP5061 is not available, how can I make direct IP call to IP:5061? Thank you for your kind advice in advanced.