Fast Food Tech: Prototype Intercom?

While "driving thru" to procure her powerful blogger husband a breakfast sandwich, hot tipster Elizabeth came across a newly-upgraded intercom system at her favorite guilt-ridden fast food establishment.

Could this be an advanced communications prototype only implemented in the famous Midwestern test market? What types of technologies could be in use here? Bluetooth? Infrared? Yellow extension cord? Hit the jump for a bonus picture and the sad identity of the business that made me even fatter this morning.

Fast Food Tech: Prototype Intercom?