FIRMWARE VERSION 1.0.0.17 GXP2140/GXP2160 USER MANUAL Page 17 of 79
Grandstream, contact the Grandstream Support for a RMA (Return Materials Authorization) number before
the product is returned. Grandstream reserves the right to remedy warranty policy without prior notification.
Warning:
Use the power adapter provided with the phone. Do not use a different power adapter as this may damage
the phone. This type of damage is not covered under warranty.