Just looking at my states on my firewall for the company Vonage numbers we have still hooked up. Kinda unconventional but it works for them I guess.
Both on the same ata.
udp 69.59.252.36:10000 <- 172.25.125.27:10000 MULTIPLE:MULTIPLE
udp 172.25.125.27:10000 -> 174.xxx.229.xxx:46497 -> 69.59.252.36:10000 MULTIPLE:MULTIPLE
udp 69.59.242.86:10000 <- 172.25.125.27:10000 MULTIPLE:MULTIPLE
udp 172.25.125.27:10000 -> 174.xxx.229.xxx:39384 -> 69.59.242.86:10000 MULTIPLE:MULTIPLE
