You need to make the following settings to send and receive IP faxes to and from a G3 fax-compatible device through a VoIP Gateway.
Setting SIP information for the printer
Register a VoIP gateway
To use VoIP gateways, you need to set the priority for the VoIP gateways you want to connect to after they have been registered. See the following for more information.
Select Fax > IP-FAX Settings > VoIP Gateway Settings from the configuration template.
Set each item.