upgrade v16

  1. Attention : Grandstream gxp21xx can freeze completely after upgrade to V16px

    Hi, this little message to inform you that the Grandstream GXP21xx can freeze completely after upgrade to 3cx V16x and firmware 1.0.9.132 under certain conditions. We installed yesterday the upgrade from V15sp6 to V16p3 with a restore of v15. After it our gxp2160 and gxp2130 didn't function...
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