Could ghosts put an end to checkout queue hell? Mobile signal solutions

Frustrated shoppers in supermarket queue as no mobile signal at the checkout to make payment

As supermarkets push ahead with payment apps, self-service checkout tills, and scan-and-go tech, the need for good, uninterrupted connectivity has never been more important. When signal dies, transactions stall, mobile payments collapse, and digital tills lock up – it results in frustrating queues at the checkout.
But when and how do you rectify it? How do you correct an issue in a place that rarely shuts?