Brian A has brought this to us :
> On Sun, 08 Jul 2007 12:17:39 +0100, Jono <nothanks@blueyonder.invalid>
> wrote:
>
>> Brian A presented the following explanation :
>>> UDP_RTP 8000 26000 192.168.1.6
>>
>> That's a massive range Brian......
>>
> You may well be right.... what do you use?

None, nor the DMZ. I use the DDWRT-VoIP firmware for my Linksys WRT54G.
Not needed to port forward since.