How do I set up Shared Line Appearance (SLA)?

    Share a single line with up to eight phones so you can quickly move 2-way calls around.

    Use this quick and easy setup tool to get started if you have less than 50 seats.
    Important: Please excuse our mess while we improve your admin experience! We are in the process of migrating all accounts to the new admin experience. The article below is meant for admins who use to administer their account. If you're an admin who uses, please refer to: How do I change the settings on a direct extension?
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    Before you begin:
    • You must have admin or super admin permissions.
    • This feature is supported on Cisco MPP, Yealink, Polycom VVX only.
    1. Sign in at
    2. Click Lines in the left sidebar and then click Add Line.

      • The next available number will automatically populate the Extension; change this number as needed.
      • If the line that needs to be shared already exists, skip to steps 5-6 to enable Shared Line, and then power cycle all devices that share the line.

    3. Enter a Name for the line. You can override this with the button label.
    4. Click Admin Portal Checkmark Icon and then click the new line to configure its settings.
    5. From General > Extension, set the Name field to Use and then enter the desired name for the shared line.
    6. Enable Shared Line.
    7. Click Save.

      Note: The line will have the SLA icon next to its extension number throughout the admin portal.

    8. Click Devices in the left sidebar and then click the phone that needs the shared line added to one of its line keys.
    9. From Button Configuration, check Allow this device to monitor the presence of other devices.
    10. Select Line and then choose the newly created Shared Line extension.
    11. Edit the button label. The button label overrides the line name.
    12. Click Save.
    13. Repeat with additional shared lines as needed.
    What to do next: Power cycle the phone to apply the changes.