The Yealink EXP55 is an expansion module for the SIP-T73U, SIP-T73W, SIP-T74U, SIP-T74W, SIP-T77U, SIP-T85W, SIP-T87W and SIP-T88W models that will expand the functional capability of these phone to a whole new level.
- 5.5 Inch (480 x 960) colour display with backlight.
- 26 Physical keys each with dual colour LED.
- 78 Virtual keys (3 pages of 26 each).
- Three independent page-switch keys.
- Stand with 2 adjustable angles.
- Up to three EXP55 modules can be daisy-chained for up to 234 virtual keys.
- Note: When daisy-chaining modules, an additional (optional) 5V 2A power adapter is required.