Use an SSL VPN service and network address and port translation (NAPT) rules to establish remote communication sessions with LAN devices such as an IP Office UCM module. To connect to a LAN device on the private IP Office network, the support service provider launches a communication application on a PC located at the remote service provider site and specifies the following configuration parameters for the session:

• the IP address of an SSL VPN tunnel

• the external port number for the LAN device

IP Office uses the NAPT rules to map the tunnel IP address and the external port number to the correct IP address and port number on the private network.