Yealink EXP39 The Yealink EXP39 Expansion Module (sidecar) is designed for improving the power and flexibility of the Yealink SIP-T26 and SIP-T28 IP Phones. Details: Model: yea-exp39 Weight(lbs) : 3.0 List Price $139.00 Your Price $78.00

PLEASE NOTE : The EXP39 Expansion Module features a 160×320 Graphic LCD and 20 physical keys each with a dual-color LED. By programming the keys, you can set the keys for speed dial or BLF functionality. In addition, a “page switch” allows you to change screens and have up to 40 programmable keys.