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.