Max Call Duration Feature

The Max Call Duration Feature monitors the call duration and terminates the call if the maximum call time has been exceeded.

On an incoming initial ACK or when the callEstablished session state field is true, a timer is set. The timer length is controlled by the MaxTimerInterval and MaxCallDuration parameters in the feature’s configuration. MaxCallDuration can be overridden with a session state value to enable unlimited call duration or a session specific max call duration. A feature should override the MaxCallDuration in the initial call setup phase not during mid-call. On the expiry of the timer, the feature checks the call time against the maximum call duration. If the maximum call time has been exceeded, LegManager.endSession is instructed. If not, then the timer is reset to the minimum of MaxTimerInterval and the remaining MaxCallDuration.