asterisk users - Mar 2006 - icmp 36: 192.168.30.32 udp port 5004 unreachable

Hello all,

I am having an issue with a BT-101 and * . When dialing a number from the
BT-101, upon the remote side answering, the call is established but no
audio is passed in either direction.  I have tcpdump'd this session and
found this:

(192.168.30.1 is * - 192.168.30.32 is BT-101)

22:41:47.899462 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:47.899553 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:47.930185 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:47.930260 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172
22:41:47.930637 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:47.961942 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:47.961983 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:47.962019 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172
22:41:47.962043 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172
22:41:47.962495 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:47.962582 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:47.992671 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:47.992729 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172
22:41:47.993111 IP 192.168.30.32 > 192.168.30.1: icmp 36: 192.168.30.32
udp port 5004 unreachable
22:41:48.003760 IP 192.168.30.30.5060 > 192.168.30.1.5060: UDP, length 2
22:41:48.023907 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:48.023925 IP 192.168.30.31.8000 > 192.168.30.1.10020: UDP, length 172
22:41:48.023984 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172
22:41:48.024011 IP 192.168.30.1.10082 > 192.168.30.32.5004: UDP, length 172

I have tested the phone with its current config at a friends house running
the same version of * , and the phone works fine.  I plug it into my
network, and the issues remain.

How do I make * listen on udp/5004 so that the communications will work? 
I can't find anything anywhere on this, but have noticed a handful of
people reporting this same behavior.  I am starting to suspect an issue
with the NIC.

Thanks for the help!