my network is as follows
Client PCS connected to ISA which is connected to PIX which is connected to ADSL line
ISA is in firewall mode.
I am not able to yahoo messenger voice chat to other users and also msn voice chat from the clients out side the network.
But from inside if two users log on msn voice they chat nicely.
Can u advise whether i need to open ports in PIX or ISA how ever if i bypassISA & PIX it works
Please adsvise asap any help is highly appreciated