Turn On Silence Detection for an Analog Telephone Adapter

Document created by Cisco Documentation Team on Aug 16, 2017Last modified by Cisco Documentation Team on Aug 29, 2017
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An overhead paging system disconnects the active line at the end of an announcement by detecting one of the following:

  
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    A Calling Party Control (CPC) signal played by the analog telephone adapter (ATA)

      

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    Silence on the line

      

  

By default, after the end of an announcement, the ATA plays a CPC signal after 2 seconds of silence. If your paging system doesn't detect CPC, configure silence detection in Cisco Spark Control Hub. When you configure silence detection, the ATA waits for a longer duration before playing CPC.

  

You can configure the required silence duration on the paging system itself. This way, the paging system automatically disconnects the call after detecting silence for that amount of time. During this configured duration, the paging system doesn't accept any new announcements.

  

      
1    From the customer view in https://admin.ciscospark.com, go to Devices, and then choose an ATA device.
2    Under Settings, scroll to Silence Detection, and toggle the feature on.
3    Configure the required silence duration on the paging system. Refer to your paging system user manual for details.
 


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