Firewall? Router, Ports issues

[bigjimb1]

I got the Majic Jack today...the Majic Compatability test everything fine till the last item..which states Magic Jack unable to contact to its servers, Your firewall and router must allow majic jack to UDP access to talk free.com on domain ports 5060 and 5070...I have changed the Hubs no avail...made calls, they answer but crackling and nobody can hear anything, my phone does not ring...here is a real stupid question..the screen key pad...are you suppose to use it or your phone pad to call....if you have the fix, please I am a notice about ports etc...I have a Linsys router and a firewall...any help...step by step please...ready to send it back... Thanks Jim