Configuring an external switch port

Last Updated : Apr 17, 2026 |
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You must restrict the VLAN binding in the no VLAN separation mode. In the no VLAN separation mode, the internal phone switch does not filter the frames so all the traffic going through the phone goes to the CPU. In full VLAN separation mode, the internal phone switch filters any tagged VLAN frames with VLANs other than voice and data VLAN. Ensure that you configure only the necessary VLANs on the external switch port.
  1. Bind VLAN to the voice VLAN (L2QVLAN) and the data VLAN (PHY2VLAN).
  2. Set the default VLAN as the data VLAN.
    ADDITIONAL INFORMATION:
    Data VLAN is the VLAN assigned by the external switch port to untagged frames received from the phone LAN port.
  3. Configure one of the following options for egress tagging:
    • Data VLAN is untagged and voice VLAN is tagged.
    • Data VLAN and voice VLAN are both tagged. Configure this option for full VLAN separation.
    ADDITIONAL INFORMATION:
    When egress voice VLAN frames are sent untagged from the external switch port to the phone LAN port, there is no VLAN separation between the voice and data VLAN.
Related information
Virtual LAN (VLAN)