Grandstream Networks UCM6 series

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Configuring UCM6XXX with GXW410X
Figure 3: Configure Outbound Rule on the UCM6XXX
In this example pattern "91XXXXXXXXXX", 9 is the first dialing digit and it will be stripped off when the call
goes out.
Configure Inbound Rule On UCM6XXX
On the UCM6XXX web GUI, go to Extension/Trunk ->Inbound Rules to create a new inbound rule.
In this example, we create the DID as 20000, which will be used in the GXW410X call forward setting.