Top Page > Connecting the Machine/System Settings > Registering Addresses and Users > Fax Destination > Changing a Registered IP-Fax Destination > To change the protocol
Press [Select Line].
Select [H.323] , [SIP] , or [Cloud Fax].
Press [OK].
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Press [Select Line].
Select [H.323] , [SIP] , or [Cloud Fax].
Press [OK].
