Electronic hook switch

An electronic hook switch is a device which electronically connects a wireless headset and phone. EHS passes predefined signalling. Either bluetooth headset or DECT headset can be used.

The product allows user to handle call with headset only. So user does not need be or stay next to the phone. For example usually a user can push a button to switch voice path from handset to headset.but the product change sound path from headset side button.

Features

• Answer call: This feature allows user to answer a call from the headset.
• End call: This feature allows a user to hang up an active call from the headset.
• Ringtone in headset: The headset plays ringtone if the phone receives a call.
• Volume control: EHS passes volume key event from headset to telephone. so it can synchronize volume level.
• Mute control: EHS passes Mute signaling from headset to telephone. so it can synchronize mute status.

References

http://www.jabra.com/sites/jabra/gnimages/campaigns/polycom/datasheet_polycom_dec08_3705.pdf