4 Cisco SPA500DS
STEP 8 Locate the AUX IN port on the back of the Cisco SPA500DS.
Connect one end of the auxiliary cable to this port.
STEP 9 Locate the AUX port on the back of the Cisco SPA500 Series IP
Phone. Connect the other end of the auxiliary cable to this port.
The Cisco SPA500DS is powered by the auxiliary cable with the
Cisco SPA500 Series IP Phone; no additional power source is
required.
STEP10 Route the auxiliary cable inside the cable slot of the Cisco
SPA500DS.