Application Guide
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DP750/DP720 Administration Guide 
Version 1.0.3.37 
EXPERIENCING DP750/720 
Please visit our website: http://www.grandstream.com to receive the most up- to-date updates on firmware 
releases, additional features, FAQs, documentation and news on new products.  
We encourage you to browse our product related documentation, FAQs and User and Developer Forum 
for  answers  to  your  general  questions. If  you  have  purchased  our  products  through  a  Grandstream 
Certified Partner or Reseller, please contact them directly for immediate support.   
Our technical support staff is trained and ready to answer all of your questions. Contact a technical support 
member or submit a trouble ticket online to receive in-depth support. 
Thank you again for purchasing Grandstream DECT IP phone, it will be sure to bring convenience to both 
your business and personal life. 










