Using MSN Mic Function thru Router

Hi,

Currently I have my ADSL router modem (Billion BIPAC-7100 Pro) connected to my wireless router (Belkin F5D6231-4) and my computers connected to the Belkin Router.

I have changed the Encapsulation on the Billion Modem to 1483 Bridged IP LLC so that it's running without any routing function and uses my Belkin Router to dail up to my ISP through my Modem. (does it sound complicated?! )

Anyways......So I've tried to forward my ports used for MSN on my Belkin Router.....also enabled UPnP on both Billion Modem and Belkin Router.....as well as putting my computer on DMZ.... However, all these still can not allow my voice function to work on MSN.

Does anyone know how could I solve this? or is this purely my Belkin Router's problem? Because when I tried dailing up to my ISP directly from my computer through the Modem (not through the Router) the voice command works, but this means that all other computers on the network needs to go through my computer to log onto internet, which is not what I wanted.

Can someone please help me? Thanks.

And also, if anyone uses Belkin Wireless Router and wireless PCMIA, can they please tell me how to set it up so I can connect to the internet wirelessly on my laptop? because currently I can connect wirelessly to the router, but can not use internet.

Thanks again for the help!