Busy Lamp Field Keys

View the current status of other employees with Busy Lamp Field (BLF) Keys on your phone, and see who's available to take a call.

Illustration showing users marked as available or unavailable via a phone's interface.

What can I do with
Busy Lamp Field keys?

  • Enable front desk operators to see who's available or on a call.
  • Add extension modules to view presence status for dozens of employees.
  • Transfer calls to employees when they're available, or directly to their voicemail.

Use Case

Busy Lamp Field keys are useful for front desk operators, receptionists, and call center environments. With BLF keys, your staff can quickly identify who is available and who is currently on a call by glancing at their phone display. When an incoming call is received, the agent can then determine where to transfer the call, and whether to transfer the call to the employee's extension (if they're available) or directly to their voicemail (if they're on a call).

Frequently Asked Questions

  • What kind of device do I need to use BLF Keys?
    Many IP phones have programmable BLF keys. Browse our shop or let us provide you
    with a recommendation.
  • How do I configure BLF keys?
    Configuration of BLF keys will depend on the model of phone you have. You can find guides for supported IP phones on our support pages.

Features Included in all Plans

Premium Features, Products & Services

  • 1 All inbound text messages are included. You can add outbound text messages to your plan.
  • 2 There is no porting fee for local US numbers. Some toll free and international phone numbers have a porting fee. Contact us to learn more.