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# Selecting a Line Port or Protocol

This procedure explains how to select a line port or protocol under [Memory File Transfer]. To specify an IP-Fax address as a forwarding destination, you must first select a protocol.

1. From “Select Line”, select the line port or protocol you require.

   You must select either [H.323] or [SIP] if you are specifying an IP-Fax address as a forwarding destination.