Chapter4. How To Configure SIP
Routing
Ifthe SIP server is located on a NATed network, all SIP trafficfrom the outside will be directed to the
TelecommutingModule, which must know where to forward it.
Oneway to do this is to enter the SIP domain in the DNS Override For SIP Requests table on the Routing page,
tolink the SIP server IP address to the name. The Telecommuting Module will look up the domain here instead of
inthe DNS server, and send the SIP traffic to the correct IP address.
Interoperability
IfWindows Messenger is used for SIP communication, you need to set a parameter on the Interoperability page.
Setlr=true status to On under Loose routing.
Ifthe SIP server is an LCS (Live Communications Server) or some other server that does not accept more than one
Viaheader in SIP packets, you must enter the SIP server IP address in the Remove VIA headers table. This will
makethe Telecommuting Module strip SIP packets of extra Via headers when it sends those packets to the server,
andadd the Via headers when the response packets are received.
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