Yealink Expansion PSTN Box CPN10 Quick Start Manual Download Page 2

Hardware Component Instructions

The following figure shows the primary hardware
components of CPN10:

USB Plug

USB Port

PSTN Port

PSTN Port

Installing the Expansion PSTN Box

Installing a PSTN box , as shown below:

Optional USB flash drive

You can fix the two cascaded PSTN boxes by the 
double-side tape. 

Installing two PSTN boxes for three-way local 

conference, as shown below:

CP860 Conference Phones

2

CP860 Conference Phones

Note: USB flash drive should be purchased separately.  

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