Dear Grandstream Customers,
Firmware 1.0.17.3 for DP752/750/760/730/722/720 is now released as official. Here is the link to the release notes:
http://firmware.grandstream.com/Release_Note_DP7xx_1.0.17.3.pdf
The firmware and release notes can be downloaded from:
Please contact us should you have any issues. Thank you for your support for Grandstream products.
Technical Support
Grandstream Networks, Inc.