is the enhanced Android-based version taken from NHQ Bluebook entitled Callsigns and Contact Number of Police Unit for Emergency 911 Hotline that was published in PDF form. The original project aimed to provide a consolidated list of official cellphone and landline numbers of various PNP stations and offices within Police Regional Office 10 (PRO10). One key enhancement of this version is the integration of official radio callsigns of PNP units and stations. These callsigns play a crucial role in internal coordination, field operations, and emergency responses. By including them in a centralized, searchable mobile application, Project C.O.N.T.A.C.T. improves not only public access to official police hotlines but also enhances internal communication, operational readiness, and station identification across the region.