Firmware for UCM6510 is released as official


Dear Grandstream Customers,

Firmware for UCM6510 is now released as official. The firmware and release note 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.


the changelog of the version of UCM between the various changes there is this “[System]** Added support for GS Wave Mobile’s battery usage optimizations when the app is **
"registered to UCM extensions.”
but I can’t find him anywhere.
Can you help me?
Thank you


"[Routing] Added a new option “Block the Backward Collect Call” to automatically block collect
calls/reverse charge calls"

but I don’t know if it’s just a new feature or if it’s related to some “scam” in action that I don’t know?




Could you please confirm that freezing issue is resolved in this firmware version?


Hi ! Has anyone updated? works fine?


bugs bugs. wouldn’t recommend.