Grandstream GXP 1400 issues

First off I know OSS Endpoint Manager isnt supported by FreePBX but I wanted to find out if anyone on here is using OSS with Grandstream GXP1400 and/or could give some advice.

It doesn’t work well with the OSS Endpoint manager.

  • The ntp settings dont work (fields are missing)
  • VM softkey is a problem due to the fact that you have to manually touch up the xml file to specify the vm *97 which isnt a problem, but it sends it to comedian mail announcement, instead of users voicemail box.
  • OSS can’t reboot it either.

The admin guide for this phone isn’t a great read and rather confusing. Any help is always greatly appreciated.

Thanks in advance.