This feature cycles through each call that the user has on hold on the system. This feature is useful when a user with a single-line telephone has several calls on hold and needs to respond to each one in turn.
Details
Telephone Number: 
Default Short Code: 
*29
Programmable Button Control: Toggl
Release: 1.0+.
Example
Below is sample short code using the Toggle Calls feature.
Short Code: *29
Feature: ToggleCalls