Do EHS cables work with expansion modules (also called sidecars)?

Updated by Hayden Everly on Jul 5, 2024

Answer-- MAYBE.
Yealink SIP T54w VoIP phone for offices

Does the Expansion Module have an EXT or EHS port? If so, try plugging the part of the hookswitch that would regularly plug into the EHS or EXT port of the phone into that. That may work for remote answering and ring detection... but it may not. Sometimes adding a sidecar will cause the EHS cable not to be able to pick up and hang up the phone properly and/or you may not get ring detection!

Yealink EHS36 wireless headset adapter and cords for remote answering

If it doesn’t, you’re out of luck! The Expansion Module needs the phone’s EHS/EXT port and if there isn’t another one available the hookswitch has no place to go. Sorry friends!

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What is Headset Answers?

This is the internal support database for Headsets.com. We manufacture and sell office headsets in North America. With over 25 years' experience in the business, we know headsets.

Please use our support database for free headset support, whether you’re a Customer of ours (or not). If you have problems, suggestions, or unanswered questions, please email us at hello@headsets.com (compliments also welcomed 😀)

Looking for office headsets in the UK? Check out Headsets.co.uk.

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