, : -- -- NAT (Network Address Translation) : 12 Custom Destinations FreePBX 13 19, 2016 0 0 0 3 Misc Destinations FreePBX 13 18, 2017 2000 40 0 3 NAT : ? 17, 2018 0 0 0 12 NAT Cisco 24, 2018 1000 0 0 15 Address resolution protocol - ? 30, 2018 22000 30 0 7 NAT/PAT Cisco 15, 2020 0 70 0 4 Address Resolution Protocol - IPv4- 5, 2020 0 0 0 9 Asterisk 29, 2016 0 0 1 4 23, 2015 0 0 0 4 Asterisk 24, 2016 0 0 0 4 1 2