EMB ERJ 170/175 ER/LR
Dispatch Dispatcher
Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Company Policy; Human Factors; Procedure
Operations delayed flight without contacting Dispatch. Flight is on time critical; is labeled so in [system] with a request that Dispatch be contacted if a delay is imminent; and was delayed 150 minutes. We were working with [Operations] to get the EDCT (Estimated Departure Clearance Time) moved up.
Dispatcher reported being out of the loop when an aircraft was delayed and no one advised the Dispatcher.