Universal Handy Interface (UHI) is a Motorola designed universal interface for mobile phone use (Motorola, Nokia, Siemens AG, Sony Ericsson, Samsung) in Mercedes-Benz cars.
The mobile phone is placed in a cradle connected to a telephone network unit and operated using the buttons on the multi-function steering wheel. It is controlled by COMAND, a Motorola operating system which also allows SMS messages to be read and edited on the existing dashboard display. There are a large number of different cradles now available for various phones.
The hands-free capability uses the car's on-board audio system and a microphone located underneath the interior roof light.
Multi-Handset Interface (MHI) is the US sales name for UHI.
References
- "CeBIT 2003. Products from Motorola for both pedestrians and drivers-users". www.mobile-review.com. 21 March 2003. Archived from the original on 26 November 2017. Retrieved 29 June 2021.
- "Mercedes UHI and MHI Phone Cradles". www.mercupgrades.com. 15 April 2008. Archived from the original on 1 July 2020. Retrieved 29 June 2021.
- "UHI harness.gif". www.whnet.com. Archived from the original on 15 January 2021. Retrieved 29 June 2021.
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