Yealink EXP39 Expansion ModuleExpansion Module EXP39 is designed for connection to the Yealink T26P/T28Pand T38G VoIP phones.Note: Before installation, be sure to unplug the remote Internet connection and/orpower supply as well as the phone stand from the Yealink IP phone. Place the telephoneand the expansion module upside down on a soft surface so that you can readnameplates from the front. The expansion module must be placed to the left of thetelephone.a). Connect to the phoneUse the connecting sheet and screw to connect the EXP39 to the IP phone.

Yealink EXP39 Quick Start Manual