We show that photonic wave packets can be controlled and manipulated in various ways by a multi-functional quantum junction comprising a set of three-level atomic nodes which couple two waveguides. We consider nodes with the Λ-scheme of the allowed optical transitions, one of which is driven by an external classical electromagnetic control field. Addressing the dynamics of wave packets in such a system, we demonstrate that an optical pulse can be routed into one of the selected output channels, split into several parts, delayed by a desired time or stored partially in the junction. These modes of operation can be selected and controlled by the external classical field. We argue, therefore, that our proposed design is a promising prototype of a multipurpose quantum junction.