Was there a red light visible through the cable?PTCL guys came today to verify the integrity of the fiber (?). They connected some device to the node/connector inside my room and then one to the other end outside (that's inside that plastic box) and shone a light. It was OK.
They said that the connection should be active soon, most probably within this week and that no further configuration would be required in the ONT.
They were probably sent by quality control guys to make sure no issues occurred during splicing, so they use a VFL to see if the fiber is broken anywhere.