Summary

Yealink desk phones include a 'blacklist' feature within the contact directory. 

Procedure

Yealink T42G & T40P

  • Navigate to Menu > 6. Directory > 2. Blacklist
  • Tap the "Add" softkey.
  • Using the keypad, enter a "Name" for the Blacklisted contact
  • Press the down arrow on the directional keypad
  • Enter the phone number to blacklist
  • Tap "Add"

Yealink T46G & T48G

  • Navigate to Menu > Directory > Blacklist
  • Tap the "Add" softkey or tap the "Add" button (touchscreen)
  • Using the keypad, enter a "Name" for the Blacklisted contact
  • Press the down arrow on the directional keypad or tap the "Office Number" field (touchscreen)
  • Enter the phone number to blacklist
  • Tap "Save"

When a contact number is blacklisted in this manner, the phone sends a 486 - Busy response, and the phone will BNAT the call to voicemail.