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proxy server. Another is the proxy server port, to set the port of the proxy
server; its value is usually 5060 unless specified by the service vendor.
If the IP Phone does not register to any proxy server, it still can call to
another IP phone by calling the IP address directly.
E.
(Yes / No) Outbound Proxy – please set this item to Yes if the registration
needs to pass through the Outbound Proxy server.
