This is a feature that allows users to remotely receive ring indication, adjust the volume, and to answer calls, end calls, and mute calls using a wireless headset. For information about how to use the wireless headset, refer users to the wireless headset documentation.
By default, the wireless headset remote hookswitch control feature is disabled. To enable in CME, use the following CLI:
UC520(config)# telephony-service UC520(config-telephony)# service phone ehookEnable 1
U520(config-telephony)# create cnf-files
If auto asnwer is required or desired, the following command under the ephone configuration needs to be added (and the IP phone reset)
headset auto-answer line 1
Phone firmware 8.3(3) or higher is required. Don't forget to restart/reset the IP phones.
Here’s an example of some of the vendor collateral on this feature:
In general, the vendors are using the phones aux/rs-232-like port as the interface to the phone. A adapter/HHC cable goes between the wireless base station and the headset port on the phone.
The Headset Hookswitch Control (HHC) feature is now fully available via Cisco phone firmware and hardware from GN Netcom.
• Functionality: desktop phone user on wireless heaset can receive ring indication remotely, plus go onhook/offhook and control volume/mute, all without the burden of a mechanical lifter. This type of HHC functionality is also commonly referred to by the term ‘Electronic Hookswitch’
• Available only on Cisco Unified IP Phones 7942G, 7945G, 7962G, 7965G and 7975G
• Enabled via 8.3(3) firmware (available since Oct ’07);
This feature bolsters Cisco’s UC story, allowing users to benefit from enhanced mobility and the ability to multitask (including leaving the desk area) while on a call. The wireless freedom improves ergonomics and work efficiency throughout the day. Note that it’s also a differentiator for the new ‘Advanced Media’ 79x2G and 79x5G model phones.
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