The software versions of the base station and the handset are not compatible. A compatibility update is necessary.
For this update Gigaset Quick Sync Software is required:
Windows: Version 8.2.xxx or later
Macintosh: Version 3.02 or later
Download: https://www.gigaset.com/hq_en/cms/service/downloads.html
With this guide, you will be guided step by step through the update.
Compatibility Update Gigaset SL910/SL910A/SL910H
If there is no possibility to process the update, please contact the Service hotline. In this case the base station and handset must be repaired in the repair center.
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