Here is the scoop. My network extender is connected, all four LEDs are solid blue, yet calls are not going through the unit.
I have verified this by running the tcpdump program on my pfSense (FreeBSD based) router. I see keep alive traffic and other packets. But when I make a call there is no increase in network traffic. I still have poor phone quality.
20:02:45.557625 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: NONESP-encap: isakmp: child_sa inf2[I]
20:02:45.613669 IP 69.78.33.xxx.4500 > 192.168.192.2.4500: NONESP-encap: isakmp: child_sa inf2[R]
20:03:03.287123 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: isakmp-nat-keep-alive
20:03:23.287700 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: isakmp-nat-keep-alive
20:03:32.348596 IP 69.78.33.xxx.4500 > 192.168.192.2.4500: UDP-encap: ESP(spi=0x43329c6e,seq=0xf6), length 180
20:03:32.359586 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: UDP-encap: ESP(spi=0xcbfdb7af,seq=0xfa), length 180
20:03:32.365496 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: UDP-encap: ESP(spi=0xcbfdb7af,seq=0xfb), length 100
20:03:32.450266 IP 69.78.33.xxx.4500 > 192.168.192.2.4500: UDP-encap: ESP(spi=0x43329c6e,seq=0xf7), length 84
20:03:32.451190 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: UDP-encap: ESP(spi=0xcbfdb7af,seq=0xfc), length 84
20:03:32.547562 IP 69.78.33.xxx.4500 > 192.168.192.2.4500: UDP-encap: ESP(spi=0x43329c6e,seq=0xf8), length 132
20:03:32.548553 IP 192.168.192.2.4500 > 69.78.33.xxx.4500: UDP-encap: ESP(spi=0xcbfdb7af,seq=0xfd), length 84