Figure 11: Add Analog Trunk As Failover - Grandstream Networks UCM6 Series Manual

Figure 11: Add Analog Trunk as Failover

5. Click on to add another failover trunk.
6. Click on to arrange the order. If there are multiple trunks set as failovers.
7. Click on to edit, or to delete the Trunk from Failover list.
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UCM6XXX Analog Trunks Guide