ClearOne Converge Pro - Manual (Page 225)

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DIALER
The Dialer provides a software telephone interface for teleconferencing applications.
NOTE: Dialer is only available when Console is connected to a site.
Accessing Dialer
To access the dialer, select Dialer from the Services menu; press the Dialer button on the Console Button
Bar; or press the Dialer button in the Telco Rx or Telco Tx channel screens.