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Configuring VoIP on EX-series Switches (CLI Procedure)

EX-series switches support voice over IP (VoIP). Configuring VoIP on your switch enables you to make voice calls using an IP telephone and a network connection instead of a regular telephone and an analog phone line. IP phones are connected to Power over Ethernet (PoE) interfaces unless the phone is using a power adapter.

There are two ways to configure VoIP. VoIP can be configured with 802.1X authentication and LLDP-MED on an access interface, or without 802.1X authentication and LLDP-MED on a trunk interface. This configuration task shows you how to configure VoIP without 802.1X and LLDP-MED.

To configure VoIP on an EX-series switch to support an IP phone that does not support LLDP-MED, you will need to:

  • Set the mode of the port (to which you want to connect the IP phone) to trunk.
  • Add the port as a member of the voice VLAN.
  • Configure the data VLAN as the native VLAN.

This configuration ensures that the voice traffic and data traffic do not affect each other.

For information about configuring VoIP with 802.1X and LLDP-MED, see Example: Setting Up VoIP with 802.1X and LLDP-MED on an EX-series Switch. For more information about configuring PoE interfaces, see Configuring PoE on an EX-series Switch (CLI Procedure).

To configure VoIP without LLDP-MED using the CLI:

  1. Configure the VLANs for data and voice:
    [edit vlans]
    user@switch# set data-vlan vlan-id 77
    user@switch# set voice-vlan vlan-id 99
  2. Configure the VLAN data-vlan on the interface:
    [edit vlans]
    user@switch# set data-vlan interface ge-0/0/2.0
  3. Set the port mode to trunk:
    [edit interfaces]
    set ge-0/0/2 unit 0 family ethernet-switching port-mode trunk
  4. Add the interface as a member of the voice VLAN:
    [edit interfaces]
    set ge-0/0/2 unit 0 family ethernet-switching vlan members voice-vlan
  5. Configure data-vlan as native to this trunk interface:
    [edit interfaces]
    user@switch# set ge-0/0/2 unit 0 family ethernet-switching native-vlan-id data-vlan