3Com Version 4.3 DMZ/LAN Telecommuting Module, SIP server on the outside

Chapter4. How To Configure SIP
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.
Basic Configuration
Ifno other SIP routing information is entered, the Telecommuting Module must be able to look up SIP domains in
DNS.DNS servers are entered on the Basic Configuration page under Basic Configuration.
Save/Load Configuration
Finally,go to the Save/Load Configuration page under Administration and apply the new settings by pressing
Applyconfiguration.
Client Settings
SIPclients will use the Telecommuting Module as their outgoing SIP proxy and the SIP domain as the registrar.
DMZ/LAN Telecommuting Module, SIP server on the
outside
Thesimplest SIP scenario is when the SIP server is managed by someone else, and the Telecommuting Module SIP
functionis only used to traverse NAT.
Notethat the Telecommuting Module must have a public (non-NATed)IP address for the SIP signaling to work
correctly.
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