3Com 3CRUS2475 User Manual page 155

Activate — Activates voice VLAN on the device. Voice VLAN is
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disabled by default.
Port — Indicates the ports which are members of the voice VLAN.
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Only ports which were defined in the VLAN membership page, are
active.
Secured — Indicates if secure ports drop all non-voice IP traffic. The
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possible field values are:
Checked — Indicates that all ports are secured, and all non-voice IP
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traffic originating from the port is dropped from the VLAN.
Unchecked — Permits all non VoIP traffic on the VLAN with
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high-priority.
Defining Voice VLAN 155