Dear all, While trying to do voice chat in MSN, our clients are facing problems; they are unable to hear the other party, however the other party is able to hear loud and clear. We are not filtering any traffic to and from client ips however we do have a Linux based firewall (kernel 2.4.18-7) in between. Can the firewall cause this problem? -- Best regards, Vicky Shrestha System Administrator WorldLink Communications Pvt.Ltd Jawalakhel, Kathmandu, Nepal.