Manuals+
Grandstream GCC602X PBX Firmware Release Notes

GCC602X UC + Networking Convergence Solutions PBX Firmware Release Notes

IMPORTANT UPGRADING NOTE

FIRMWARE FILE DOWNLOAD

Individual firmware files are available for download at the URL below:

https://www.grandstream.com/support/firmware

FIRMWARE VERSION 1.0.27.90 (PBX)

PRODUCT NAME

GCC6020 / GCC6021

DATE

9/18/2025

FIRMWARE FILE INFORMATION

GCC6020 PBX firmware file name: gcc602xucm.bin

MD5 checksum: 7d72a4625b7c6ab51462782efcdc61db

BUG FIXES

FIRMWARE VERSION 1.0.27.89 (PBX)

PRODUCT NAME

GCC6020 / GCC6021

DATE

8/27/2025

FIRMWARE FILE INFORMATION

GCC6020 PBX firmware file name: gcc602xucm.bin

MD5 checksum: 477e8140e93d3491828ed58d857dd4b8

CHANGES/ENHANCEMENT

BUG FIXES

FIRMWARE VERSION 1.0.27.70 (PBX)

PRODUCT NAME

GCC6020 / GCC6021

DATE

6/21/2025

FIRMWARE FILE INFORMATION

GCC6020 PBX firmware file name: gcc601xucm.bin

MD5 checksum: 150d0d3f2cde1b6acd1cd41f79cb9020

CHANGES/ENHANCEMENT

PDF preview unavailable. Download the PDF instead.

Release Note GCC602x PBX 1.0.27.90 Microsoft Word for Microsoft 365

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