User's Manual
GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 User Guide Page 20 of 42 
SAFETY COMPLIANCES 
The GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 phone complies with FCC/CE and various safety 
standards. The GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 power adapter is compliant with the UL 
standard.  Use  the  universal  power  adapter  provided  with  the  GXP1610/GXP1620/GXP1625/ 
GXP1628/GXP1630  package only. The manufacturer’s warranty does not cover damages to the phone 
caused by unsupported power adapters. 
WARRANTY 
If the GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 phone was purchased from a reseller, please 
contact the company where the phone was purchased for replacement, repair or refund. If the phone was 
purchased  directly  from  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. 










