Planet VDR-300NU User Manual page 59

If the 3G network card is installed, you may click the button on the Action column to establish or
disconnect the 3G connection.
When there is no DSL WAN connection, insert the 3G network card, and then system
will perform dial-up automatically. If the DSL WAN connection and the 3G connection
coexist, the DSL WAN connection takes priority over the 3G connection. When the DSL
WAN connection starts to perform dial-up, the 3G connection will be disconnected. If the
DSL WAN connection has established, you may manually to perform 3G dial-up, and
then the DSL WAN connection will be disconnected.
User Manual of VDR-300NU
59