Grandstream · Sidecar key modules
Grandstream Extension Modules support
Add-on key modules that give receptionists and operators dozens of extra BLF and speed-dial keys.
Talk to a technician2 current · 1 discontinued
Current models
Current Grandstream Extension Modules models
Discontinued
Discontinued Extension Modules models we still support
Grandstream no longer sells these, but they keep working on smplVoice. Each page has the last firmware, setup help and a recommended replacement.
Datasheets
Extension Modules datasheets
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Grandstream and Grandstream product names are trademarks of Grandstream Networks, Inc. Product information, images and documents are published by Grandstream and provided here for reference by smplVoice. Firmware and documents are Grandstream’s original, unmodified files.