PauseMonitor
Details
May 2009: The PauseMonitor application has the unfortunate effect that if the channel on which it is called has no monitor attached, then the application returns as if an error occurred and the dialplan stops. I unfortunately do not see a direct way to tell from the dialplan if a channel has a monitor attached (there is a MONITORED channel variable, but it will be true for both channels of a monitored call).
See also