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Add an expansion module to a Yealink phone

Get more BLF and speed dial keys.

Expansion modules plug into the side of supported T4x, T5x and T7x phones.

Steps

  1. Check your phone model supports the module (for example EXP43, EXP50 or EXP64).
  2. Connect the module to the phone's EXT port with the cable provided, and power the phone.
  3. In the phone's web page, go to DSS Key → Ext Key.
  4. Set each key's type (such as BLF), value and label, then Confirm.
Tip: Some modules need their own power supply when you connect more than one.
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