, : -- -- ACK : 237 CatOS (Catalyst Operating System) 03, 2018 860 10 0 3 Cisco NX-OS IOS-XR 08, 2018 1640 60 0 9 FreePBX 15 12, 2018 5510 120 9 4 19, 2018 1020 80 5 5 FreeSwitch 1.6 Ubuntu 16.XX 31, 2018 1610 20 0 10 01, 2018 4450 130 0 23 Grandstream GXP1620 12, 2018 5350 40 0 3 VoIP: ? 03, 2018 780 110 1 6 Site-To-Site IPSec VPN Cisco 26, 2018 21340 120 3 7 DPI? 11, 2019 4250 120 0 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
