Retail internet of things (IoT) platform with in-store contactless call button

A contactless client signaling system for use within a retail Internet of Things (IoT) platform, said contactless client signaling system comprising:

• a contactless call button unit in operative communication with at least one of a hub appliance and an employee communication receiver for providing an alert signal when said call button unit is engaged, said call button unit comprising a proximity sensor and a transmitter, wherein the alert signal is transmitted by the transmitter when the proximity sensor is triggered, said proximity sensor being triggered when a portion of a user's body is within a predefined distance from the call button unit;
• and
• a communication device located proximate the call button unit that is operable when the proximity sensor is triggered;
• wherein the proximity sensor can be triggered without any direct contact between the user and the call button unit;
• and
• wherein the proximity sensor will not be triggered unless a portion of the user's body with within the predefined distance from the call button unit for a predefined period of time.