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    GSC3610/3615/3620 1.0.7.5: for GSC3510/3515 HW 1.0D and all GSC3620

    Release Notes   Download Firmware

     

    GSC3610/3615/3620 1.0.3.8: for GSC3510/3515 HW 1.0A, 1.0B and 1.0C

    Release Notes    Download Firmware

     

     

    HTTP Firmware upgrade path for BETA release is: 

    firmware.grandstream.com/BETA