The global telecommunications and security industries are in the midst of a massive, industry-led transition, phasing out legacy analog technology (such as PSTN and ISDN) in favor of Internet Protocol (IP)-based systems, commonly referred to as VoIP for voice and networked digital video for surveillance. This migration is driven by the need for higher reliability, lower operating costs, and superior functionality.

The analog PBX (Private Branch Exchange) market still exists, but it is in its "sunset years" and rapidly declining in favor of IP-based and cloud solutions. While new installations are rare, a, lingering market remains for maintenance, support, and specialized use cases.