Grandstream DP720 USER GUIDE

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• Grandstream - Firmware upgrade process

  An important Firmware upgrade Software Patch has been issued by Grandstream, the makers of your phone system handsets. To ensure this is received and installed to your handsets, Please follow these instructions: If you have Grandstream Desk Handsets, ...

• Grandstream DP720 isn't ringing

  If your Grandstream DP720 DECT is not ringing It's possible you may have accidently enabled 'DND' (Do Not Disturb). If you see anything on your phone screen like this: You will need to disable DND to make the handset available to ring again on your ...