EHS means Electronic Hook Switch and is a feature that allows wireless headsets to accept and end calls directly by pressing a specific button. In other words, apart from the pure speech transmission, EHS makes call acceptance possible directly at the headset. By using EHS, telephones and headsets of different manufacturers can be combined. The Snom EHS solution supports both wireless headsets from GN Netcom/Jabra as well as devices from Plantronics. This requires a corresponding connector at the headset.
The Snom EHS solutions consist of an EHS adapter box and necessary cables.
- Enhanced Wireless Headset Adapter (EHS Advanced 2.0): P/N: 00002362
NOTE: A third party accessory is available from Sennheiser, the splitter cable connects the headset's base station to a desktop telephone and the Snom EHS box.
More information regarding the Sennheiser CEHS-SP 01 can be found here.
If you want to know which headsets have been tested for compatibility with Snom Desk Phones, please have a look at the following list: Supported Headsets
But this is not a guarantee that this headset will work perfectly with the Snom EHS adapter.
Attention: Never forget, you have to restart your Snom Desk Phone after connect the Headset with a EHS Adapter to get the Headset working.
Supported Phone Series
Following series/phones currently supporting EHS Advanced:
- Snom 3xx series (Snom 300 with MAC addresses 00041328xxxx and higher)
- Snom 7xx: FW 188.8.131.52 and higher
- Snom 8xx series
- Snom D3xx series
- Snom D7xx series
Cables are supplied with the Snom EHS Advanced.
The connection of wireless headsets, with a transmitter/charger station connected by cable to the desk phone, from third party suppliers (Jabra, Plantronics, Sennheiser) is not always done in the same way. At the moment, there are typically 3 different cases.
Case 1 (default)
Some are connected completely via the Snom EHS Advanced adapter, such as the Plantronics Savi 740, which is connected to the EHS adapter using the 3.5 jack plug (audio) provided with the EHS adapter and then connected to the EHS input of the phone using the cable shown in picture A (see below) and to the headset jack of the phone using the cable provided with the headset. This is the standard case.
- Case 2
Some headsets have two outputs, such as the Jabra Pro 9470, which has an output (RJ45) to the EHS, to which the EHS adapter is connected (next to the jack input) using the cable supplied with the EHS (in the example RJ45/RJ45 - Figure E) and then the connection is made to the EHS input of the phone using the cable supplied with the EHS adapter, picture B with RJ45/RJ12.
There are also cases in which an EHS adapter is already included as with the Sennheiser DW Pro 1, in which no additional EHS adapter from Snom is required. (The CEHS-CI 02 cable from Sennheiser should fit here).
Please note that the EHS connection on our phones has changed over time. Older models of the D7xx series (D710, D712, D715, D725, D745, D765) have a 4-pin flat connector, and you need the cable shown in picture D.
Newer devices have an RJ12 Western plug as shown in picture A. Here only the labeling has changed from EXT to EHS over time. The EHS input is mostly hidden behind a black square protection cap.
Download EHS - Quick Installation Guide here:
Supplied with the headset
The 4P4C audio cable is NOT supplied with the EHS Advanced. It comes with the headset base station and is connected to the headset port on the Snom phone.
Jabra & Plantronics
- Foot stand needs to be removed temporarily for connecting the cable.
- Please make sure to connect the cable as shown in the picture list below.
|Current Snom phones D3xx / D7xx||Older Snom phones|
Snom phone + "Jabra" Headset
|Snom phone + "Plantronics" Headset|
Difference between standard interface and extended interface
|(1) Not included in delivery|
This page has no comments.