A system for managing network alarms generated by element manager modules (110(j)) in response to corresponding faults/malfunctioning affecting network nodes (105(i)) or links of a telecommunication network, the system comprising: - an alarm management platform configured to gather the network alarms and to accordingly generate a first set (FSNA) of network alarms comprising at least a subset of the gathered network alarms; - a network operator unit configured to arrange the network alarms of the first set (FSNA) into a network alarm table providing for each network alarm listed in the network alarm table data describing the network alarm, the network operator unit being further configured to manage the faults/malfunctioning affecting the network nodes or links corresponding to said network alarms by exploiting said network alarm table; - an alarm prediction module configured to receive from the alarm management platform an alarm duration prediction request (PR(d)) about a predicted duration of a selected network alarm and alarm data (AD') regarding said selected network alarm and accordingly generate an alarm duration prediction (AP(d)) about a predicted duration of said selected network alarm by processing said alarm data (AD') regarding said selected network alarm through a first machine learning algorithm trained with alarm data regarding past network alarms gathered by the AM system, wherein: - the alarm management platform is configured to generate said at least a subset of the gathered network alarms for generating said first set (FSNA) of network alarms conditioned to said alarm duration predictions (AP(d)); - said selected network alarm is generated in response to faults/malfunctioning affecting a first network node (105(i)) of the telecommunication network; - the alarm prediction module is configured to generate said alarm duration prediction (AP(d)) by processing, in addition to said alarm data (AD') regarding said selected network alarm, alarm data regarding prior network alarms generated in response to foregoing faults/malfunctioning affecting at least one among: - said first network node (105(i)); - network nodes (105(i)) or links that are logically connected to said first network node (105(i)), and - network nodes (105(i)) or links that are geographically located close to said first network node (105(i)). - an alarm management platform configured to gather the network alarms and to accordingly generate a first set (FSNA) of network alarms comprising at least a subset of the gathered network alarms; - a network operator unit configured to arrange the network alarms of the first set (FSNA) into a network alarm table providing for each network alarm listed in the network alarm table data describing the network alarm, the network operator unit being further configured to manage the faults/malfunctioning affecting the network nodes or links corresponding to said network alarms by exploiting said network alarm table; - an alarm prediction module configured to receive from the alarm management platform an alarm duration prediction request (PR(d)) about a predicted duration of a selected network alarm and alarm data (AD') regarding said selected network alarm and accordingly generate an alarm duration prediction (AP(d)) about a predicted duration of said selected network alarm by processing said alarm data (AD') regarding said selected network alarm through a first machine learning algorithm trained with alarm data regarding past network alarms gathered by the AM system, wherein: - the alarm management platform is configured to generate said at least a subset of the gathered network alarms for generating said first set (FSNA) of network alarms conditioned to said alarm duration predictions (AP(d)); - said selected network alarm is generated in response to faults/malfunctioning affecting a first network node (105(i)) of the telecommunication network; - the alarm prediction module is configured to generate said alarm duration prediction (AP(d)) by processing, in addition to said alarm data (AD') regarding said selected network alarm, alarm data regarding prior network alarms generated in response to foregoing faults/malfunctioning affecting at least one among: - said first network node (105(i)); - network nodes (105(i)) or links that are logically connected to said first network node (105(i)), and - network nodes (105(i)) or links that are geographically located close to said first network node (105(i)).