■Issue At Company A, a coin parking operator, it took a long time for the call center to identify which parking lot the call was coming from during trouble incidents, leading to prolonged responses and serious issues. Increased waiting times for users resulted in further dissatisfaction and complaints, as well as an increase in customer harassment. Additionally, the introduction of remote opening and closing devices for gate-type parking lots was costly, presenting a financial challenge. ■Implementation Effects By inserting individual SIM cards into each device and registering the phone numbers in the call center's CTI/CRM system, it became possible to instantly identify which parking lot and which payment machine the call was coming from upon receiving a call. This significantly reduced response times and decreased customer harassment by alleviating user stress. In gate-type parking lots, by directly connecting the device to the payment machine, it became possible to obtain signals for gate operations and equipment malfunctions, such as ticket shortages, without the need for expensive remote devices.

■Issues At Regional Bank B, the reduction in ATM usage has made it urgent to discontinue ATMs and reduce operating costs. In particular, the existing emergency communication devices for ATMs that use wired connections have high monthly running costs and maintenance expenses, leading to a decline in profitability. Additionally, when relocating or discontinuing ATMs, new telephone installation costs arise, increasing the risk of recovering capital investments. ■Implementation Effects By switching from existing wired devices to wireless direct-dial devices, we were able to significantly reduce monthly running costs. The installation was simple, requiring only plugging in the power, which minimized construction costs. During ATM relocations, new telephone installations were no longer necessary, and only the transportation of equipment was required. Even when discontinuing ATMs, the low installation and running costs greatly reduced the investment recovery risk compared to wired types.