I believe they are talking about a Video Relay Service - a service which translates sound into the equivalent written text for deaf people. If that is the case, then the sentence would make perfect sense.

VR=Voice recognition. The elevator has a system that responds to voice commands. The guys were stuck because the VR didn't understand they were saying the word 'eleven' because they are Scottish. As the comments show, even Americans have problems with VR systems. I am always yelling at my phone like these guys did with the elevator speaker.

Well the video was talking about voice recognition, so in this case I think the poster of that comment actually mis-spoke. I would think "Video Relay Service" would be unlikely, since it's not well known among hearing people (I personally had never heard of that before). I think the poster mean to say AI (Artificial Intelligence), and has confused it with VR (Virtual Reality). Virtual Reality (VR) was a buzzword back in the 90's referring to very realistic computer generated environments (3 dimensional video, tactile interaction, etc.). While it's incorrect in this sense, I can see how the confusion would be possible.I believe what they were actually referring to, is voice recognition software, which they meant to (incorrectly) call AI, but came up with the (incorrect) acronym VR instead.

Where did you see this sentence?

not sure what that can be!