The Acumen IT Support blog provides you with helpful articles about VoIP phone system and troubleshooting.
There is no information on the internet on how to upgrade the firmware on a Sennheiser OfficeRunner. All available information is on the DW series, which does not apply to the OfficeRunner.
You can upgrade the firmware using the Sennheiser HeadSetup software that is normally used to connect the OfficeRunner to a softphone such as the 3CX IP PBX softphone.
See our Phone System Services Page for more information about ways we can help you!
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