Yealink EXP40 Quick User Guide

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b). Connect to the next module
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Follow the same steps to connect the next expansion module
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Note:!The phone can support up to six expansion modules. If you use more than three
expansion modules, you will need to connect an additional power adapter to any one of the
expansion modules.

Yealink EXP40 Specifications

General

Product color	Black
Number of buttons	20 buttons
Compatible products	SIP-T46G, SIP-T48G
Keypad illumination	Yes
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Weight	6700 g
Dimensions (WxDxH)	127 x 213 x 167 mm