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UAD :: LED Patterns on Cisco SPA Devices

This Configuration Guide is written as a general guide on how to configure LED patterns on Cisco SPA devices.


In order to change LED patterns behavior, the phone must be provisioned. To provision your Cisco SPA device, follow our Provisioning Guide.

LED Script

The LED script describes the color and blinking pattern of a Line Key LED. The allowed field name and corresponding field values are listed below:


  • o = off
  • r = red
  • g = green
  • a = amber (orange)


This field sets the blinking pattern of the LED. The 4 choices are:

  • nb = no blink (steady on or off)
  • sb = slow blink (1s on and 1s off)
  • fb = fast blink (100ms on and 100ms off)
  • ud = user-defined (according to the contents of the u field)



To change LED patterns, go to your extension, select Advanced, and in the UAD Auto Provisioning Template field enter the configuration line.

For example:

<Disabled_LED group="Phone/Line_Key_LED_Pattern">c=g</Disabled_LED>

In this case, all disabled keys will be steady green.

LED Script Examples


The color is red and the pattern is a slow blink.


LED is off.


The color is green and the pattern is steady on (default).


The color is amber (orange) and the blink pattern is: 100ms on, 100ms off, 100ms on, 100ms off, 100ms on, and 900ms off.

For more information check Cisco Configuration Guide.