PC to phone no longer works with my router

I installed a Linksys BEFSR41 switching router and can no longer make pc to phone calls because of the built in firewall.
Do not know a lot about networking. The phone program wants me to open up some TCP and UDP ports to enable it to work. I can't find anything about UDP or TCP port enabling in the manual or the Linksys web page.
I think I can get around this by disabling the onboard firewall and running a firewall on each puter on the network. Then all I have to do is temporarily disable the firewall on the puter I want to use to make a call.
Will this work?
Will my network still be invisible to the outside world and my ISP? (except for the times the firewall is disabled)
Can or how do you enable UDP or TCP ports with the Linksys


Andoh

Hi Chord,
Tried the DMZ thing but no go. Still says I need to open up some ports for it to work. BTW, I an using the free ver. of Zone Alarm. Do full featured firewalls allow to to force ports open?
Andoh

hmm yeah if you've still got Zone Alarm installed that might do it (in fact the router and zone alarm are kind of overkill in my opinion). Try the DMZ config without Zone Alarm installed. If that doesn't work, I'd call Linksys and explain to them that you can get the router to open ports on a specific machine (it's not that long to get through to them..though I don't know how helpful they will be).

***Hey I run Intel... but let's get real***

Go to http://www.practicallynetworked.com

Lots of help for the Linksys router there... And allowing ports through shouldn't be a problem (and it should be briefly mentioned in the manual). The web site above goes into more detail.