TCP/UDP ports for IP Communicator over VPN client

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Mar 18th, 2007
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I have a IP Telephony network (CM 4.2, Voice Gateway, IP Phones). the network is connected to internet through two stage firewalls ( First stage: PIX and second stage: MS ISA )

I want to implmenet IP Communicator over VPN client dial-into the internet & terminate the VPN on PIX firewall and to conncet to the IP Telephony network

I want to know the ports that I should opened on the ISA server from outside to inside network

Anyone can help



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paolo bevilacqua Sun, 03/18/2007 - 08:14
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SCCP is port 2000 / TCP. Then if ISA does simmetric NAT, nothing else as it will open incoming RTP ports based on outgoing.

Hope this helps, if so please rate post!


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